{"id":16349,"date":"2025-12-29T15:08:23","date_gmt":"2025-12-29T14:08:23","guid":{"rendered":"https:\/\/webhosting.de\/cron-timezone-issues-cronjobs-zeitplanung-fehler\/"},"modified":"2025-12-29T15:08:23","modified_gmt":"2025-12-29T14:08:23","slug":"cron-%e3%82%bf%e3%82%a4%e3%83%a0%e3%82%be%e3%83%bc%e3%83%b3%e3%81%ae%e5%95%8f%e9%a1%8c-cronjobs-%e3%82%b9%e3%82%b1%e3%82%b8%e3%83%a5%e3%83%bc%e3%83%aa%e3%83%b3%e3%82%b0%e3%82%a8%e3%83%a9%e3%83%bc","status":"publish","type":"post","link":"https:\/\/webhosting.de\/ja\/cron-timezone-issues-cronjobs-zeitplanung-fehler\/","title":{"rendered":"Cron \u306e\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u306e\u554f\u984c\uff1aCron \u30b8\u30e7\u30d6\u3078\u306e\u5f71\u97ff\u306b\u3064\u3044\u3066"},"content":{"rendered":"<p>Cron \u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u306e\u554f\u984c\u306b\u3088\u308a\u3001Cron \u30b8\u30e7\u30d6\u304c\u4e71\u308c\u308b\uff1a\u7570\u306a\u308b\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3001\u590f\u6642\u9593\u306e\u5909\u66f4\u3001\u304a\u3088\u3073\u4e0d\u7d71\u4e00\u306a <strong>\u30b5\u30fc\u30d0\u30fc\u8a2d\u5b9a<\/strong> \u5b9f\u884c\u6642\u9593\u3092\u5ef6\u671f\u3057\u305f\u308a\u3001\u30bf\u30b9\u30af\u3092\u4e8c\u91cd\u5316\u3057\u305f\u308a\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u52b9\u679c\u304c\u751f\u3058\u308b\u4ed5\u7d44\u307f\u3001\u305d\u306e\u30c6\u30b9\u30c8\u65b9\u6cd5\u3001\u305d\u3057\u3066\u56fd\u969b\u7684\u306a\u74b0\u5883\u3067\u306e Cron \u30b8\u30e7\u30d6\u306e\u6d3b\u7528\u65b9\u6cd5\u306b\u3064\u3044\u3066\u3001\u308f\u304b\u308a\u3084\u3059\u304f\u3054\u8aac\u660e\u3057\u307e\u3059\u3002 <strong>scheduled<\/strong> \u74b0\u5883\u3092\u78ba\u5b9f\u306b\u8a08\u753b\u3059\u308b\u3002.<\/p>\n\n<h2>\u4e2d\u5fc3\u70b9<\/h2>\n<p>\u4ee5\u4e0b\u306e\u91cd\u8981\u306a\u5074\u9762\u304c\u3001\u3053\u306e\u30c6\u30fc\u30de\u3092\u7684\u3092\u7d5e\u3063\u3066\u5c0e\u304d\u307e\u3059\u3002<\/p>\n<ul>\n  <li><strong>UTC\u6226\u7565<\/strong>: \u590f\u6642\u9593\u5909\u66f4\u306e\u306a\u3044\u7d71\u4e00\u30d9\u30fc\u30b9\u3002.<\/li>\n  <li><strong>DST\u30ea\u30b9\u30af<\/strong>\uff1a\u30b8\u30e3\u30f3\u30d7\u306e\u6642\u9593\u306f\u30012\u56de\u8d70\u3063\u305f\u308a\u3001\u8d70\u308a\u3092\u9003\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002.<\/li>\n  <li><strong>CRON_TZ<\/strong>: \u65b0\u3057\u3044 Cron \u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u304a\u3051\u308b\u30b8\u30e7\u30d6\u3054\u3068\u306e\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3002.<\/li>\n  <li><strong>App-TZ<\/strong>PHP\u3001Node\u3001Python \u3092\u6642\u9593\u610f\u8b58\u3092\u6301\u3063\u3066\u8a2d\u5b9a\u3059\u308b\u3002.<\/li>\n  <li><strong>\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0<\/strong>: \u30ed\u30b0\u3001\u30a2\u30e9\u30fc\u30c8\u3001\u304a\u3088\u3073\u6642\u523b\u5909\u66f4\u306b\u95a2\u3059\u308b\u30c6\u30b9\u30c8\u5b9f\u884c\u3002.<\/li>\n<\/ul>\n\n<h2>\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u304ccron\u30b8\u30e7\u30d6\u3092\u6b6a\u3081\u308b\u7406\u7531<\/h2>\n<p>cron\u30b8\u30e7\u30d6\u306f\u57fa\u672c\u7684\u306b\u30ed\u30fc\u30ab\u30eb\u30b7\u30b9\u30c6\u30e0\u6642\u9593\u306b\u57fa\u3065\u3044\u3066\u5b9f\u884c\u3055\u308c\u307e\u3059\u304c\u3001\u3053\u308c\u304c\u7570\u306a\u308b\u5834\u5408 <strong>\u30bf\u30a4\u30e0\u30be\u30fc\u30f3<\/strong> \u3059\u3050\u306b\u5ef6\u671f\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u304c UTC \u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001Cron \u306f\u3059\u3079\u3066\u306e\u5f0f\u3092 UTC \u306b\u5bfe\u3057\u3066\u76f8\u5bfe\u7684\u306b\u89e3\u91c8\u3057\u307e\u3059\u304c\u3001\u30c1\u30fc\u30e0\u306f\u591a\u304f\u306e\u5834\u5408\u3001\u73fe\u5730\u306e\u55b6\u696d\u6642\u9593\u306b\u57fa\u3065\u3044\u3066\u8003\u3048\u3066\u3044\u307e\u3059\u3002\u8ab0\u304b\u304c\u300c\u6bce\u65e5 9 \u6642 EET\u300d\u3092\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u3057\u305f\u5834\u5408\u3001\u590f\u6642\u9593\u306b\u5fdc\u3058\u3066 UTC+2 \u307e\u305f\u306f UTC+3 \u306b\u76f8\u5f53\u3057\u3001\u5177\u4f53\u7684\u306a <strong>\u63db\u7b97<\/strong>. \u3053\u306e\u9055\u3044\u3092\u5fd8\u308c\u308b\u3068\u3001\u6bce\u65e5\u306e\u30ec\u30dd\u30fc\u30c8\u304c\u65e9\u3059\u304e\u305f\u308a\u9045\u3059\u304e\u305f\u308a\u3001\u652f\u6255\u3044\u306e\u671f\u9650\u3092\u9003\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u79c1\u306f\u307e\u305a\u30b7\u30b9\u30c6\u30e0\u306e\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3092\u78ba\u8a8d\u3057\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u671f\u5f85\u5024\u3068\u7167\u3089\u3057\u5408\u308f\u305b\u3066\u304b\u3089\u3001cron\u5f0f\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2025\/12\/cron-timezone-office-7681.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u5b9f\u8df5\u306b\u304a\u3051\u308b\u30b5\u30fc\u30d0\u30fc\u69cb\u6210<\/h2>\n<p>\u79c1\u306f\u3001\u5206\u6790\u3092\u59cb\u3081\u308b\u524d\u306b\u5fc5\u305a\u4ee5\u4e0b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002 <strong>timedatectl<\/strong> \u304a\u3088\u3073 date \u3092\u4f7f\u7528\u3057\u3066\u3001\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3001NTP \u30b9\u30c6\u30fc\u30bf\u30b9\u3001\u304a\u3088\u3073\u30aa\u30d5\u30bb\u30c3\u30c8\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u300ctimedatectl set-timezone UTC\u300d\u306f\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u57fa\u76e4\u3092\u63d0\u4f9b\u3057\u3001\u305d\u306e\u5f8c\u3001Cron \u5f0f\u3092 UTC \u306b\u5909\u63db\u3057\u307e\u3059\u3002 \u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u8a2d\u5b9a\u3067\u306f\u3001\u30bf\u30fc\u30b2\u30c3\u30c8\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u300cEurope\/Berlin\u300d\u3067\u8a08\u7b97\u3057\u3066\u3044\u308b\u306e\u306b\u3001\u30b5\u30fc\u30d0\u30fc\u304c UTC \u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u3057\u3070\u3057\u3070\u4e0d\u4e00\u81f4\u304c\u767a\u751f\u3057\u307e\u3059\u3002CLI-PHP \u304a\u3088\u3073 Web \u30b5\u30fc\u30d0\u30fc PHP \u306b\u3064\u3044\u3066\u3082\u540c\u69d8\u3067\u3059\u3002\u7570\u306a\u308b\u300cdate.timezone\u300d\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u554f\u984c\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002 <strong>\u30bf\u30a4\u30e0\u30d9\u30fc\u30b9<\/strong>. \u6700\u7d42\u7684\u306a\u6c7a\u5b9a\u4e8b\u9805\u306f\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u6587\u66f8\u306b\u660e\u8a18\u3057\u3066\u8a18\u9332\u3057\u3001\u5f8c\u3067\u8ab0\u3082UTC\u3067\u306f\u306a\u304f\u30ed\u30fc\u30ab\u30eb\u6642\u9593\u3092\u671f\u5f85\u3059\u308b\u3053\u3068\u304c\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002.<\/p>\n\n<h2>UTC \u3092\u6a19\u6e96\u3068\u3057\u3066\u3001\u55b6\u696d\u6642\u9593\u3078\u306e\u5bfe\u5fdc<\/h2>\n<p>\u30b5\u30fc\u30d0\u30fc\u6642\u9593\u3068\u3057\u3066\u306eUTC\u306f\u3001\u6642\u8a08\u304c <strong>\u30b5\u30de\u30fc\u30bf\u30a4\u30e0<\/strong> \u77e5\u3063\u3066\u3044\u307e\u3059\u3002\u79c1\u306f\u3001\u5404\u30ed\u30fc\u30ab\u30eb\u306e\u5b9f\u884c\u3092\u56fa\u5b9a\u306e UTC \u6642\u523b\u3068\u3057\u3066\u8a08\u753b\u3057\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u51ac\u5834\u306e\u300c9 \u6642 EST\u300d\u306f 14:00 UTC \u3068\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u5b9a\u671f\u7684\u306a\u30ec\u30dd\u30fc\u30c8\u3001\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3001\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\u306f\u3001\u5730\u57df\u306e\u6642\u8a08\u306b\u95a2\u4fc2\u306a\u304f\u4e00\u8cab\u6027\u3092\u4fdd\u3064\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002CRON_TZ \u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001\u8907\u6570\u306e\u5730\u57df\u3092\u4e26\u884c\u3057\u3066\u5b9f\u884c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u30b8\u30e7\u30d6\u3054\u3068\u306b\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u983b\u7e41\u306b\u4f7f\u7528\u3059\u308b\u30c6\u30fc\u30d6\u30eb\u3082\u6587\u66f8\u5316\u3057\u3066\u3044\u307e\u3059\u3002 <strong>\u30aa\u30d5\u30bb\u30c3\u30c8<\/strong>, \u63db\u7b97\u304c\u900f\u660e\u6027\u3092\u4fdd\u3064\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u3067\u3059\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2025\/12\/cronjob_timezone_issues_3928.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u590f\u6642\u9593\u306e\u843d\u3068\u3057\u7a74\u3068\u30c6\u30b9\u30c8<\/h2>\n<p>\u590f\u6642\u9593\u306e\u5909\u66f4\u306f\u6700\u3082\u5178\u578b\u7684\u306a\u5909\u5316\u3092\u3082\u305f\u3089\u3059 <strong>\u30a8\u30e9\u30fc\u30d1\u30bf\u30fc\u30f3<\/strong>\uff1a1\u6642\u304b\u30893\u6642\u306e\u9593\u306f\u3001\u5b9f\u884c\u304c\u30ad\u30e3\u30f3\u30bb\u30eb\u3055\u308c\u305f\u308a\u3001\u4e8c\u91cd\u306b\u5b9f\u884c\u3055\u308c\u305f\u308a\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u3053\u306e\u6642\u9593\u5e2f\u306e\u91cd\u8981\u306a\u30b8\u30e7\u30d6\u306f\u3001\u3053\u306e\u6642\u9593\u5e2f\u3092\u907f\u3051\u3066\u8a08\u753b\u3057\u3066\u3044\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u30c6\u30b9\u30c8\u74b0\u5883\u3067\u5207\u308a\u66ff\u3048\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3057\u3001\u30ed\u30b0\u3001\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3001\u7d42\u4e86\u30b3\u30fc\u30c9\u3092\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u3002\u65b0\u3057\u3044\u30eb\u30fc\u30eb\u304c\u6b63\u3057\u304f\u53cd\u6620\u3055\u308c\u308b\u3088\u3046\u306b\u3001tzdata \u3092\u4f7f\u7528\u3057\u3066\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u6700\u65b0\u306e\u72b6\u614b\u306b\u4fdd\u3063\u3066\u3044\u307e\u3059\u3002 \u5dee\u7570\u304c\u3042\u308b\u5834\u5408\u306f\u3001cron \u30ed\u30b0\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ed\u30b0\u3001\u30b7\u30b9\u30c6\u30e0\u6642\u9593\u3092\u4e00\u7dd2\u306b\u5206\u6790\u3057\u3066\u3001 <strong>\u539f\u56e0<\/strong> \u78ba\u5b9f\u306b\u5206\u96e2\u3059\u308b\u3002.<\/p>\n\n<h2>CRON_TZ \u306e\u8a73\u7d30\u3068 Cron \u5b9f\u88c5\u306e\u9055\u3044<\/h2>\n<p>CRON_TZ \u306f\u3001\u30b8\u30e7\u30d6\u3054\u3068\u306b\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u5b9f\u969b\u306e\u30a8\u30f3\u30c8\u30ea\u306e\u524d\u306b\u300cCRON_TZ=Europe\/Berlin\u300d\u3068\u3044\u3046\u30d8\u30c3\u30c0\u30fc\u3092\u4ed8\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u65b0\u3057\u3044 Cron \u306e\u6d3e\u751f\u7248\u306f\u3053\u308c\u3092\u78ba\u5b9f\u306b\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u6700\u5c0f\u9650\u306e\u6a5f\u80fd\u3057\u304b\u5099\u3048\u3066\u3044\u306a\u3044\u6d3e\u751f\u7248\uff08\u7d44\u307f\u8fbc\u307f\u74b0\u5883\u3084 BusyBox \u74b0\u5883\u306a\u3069\uff09\u306f\u3053\u306e\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u3092\u7121\u8996\u3057\u307e\u3059\u3002 \u305d\u306e\u305f\u3081\u3001\u79c1\u306f\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u5b9f\u88c5\uff08\u300ccronie\u300d\u3001\u300cVixie\u300d\u3001\u300cBusyBox\u300d\uff09\u3068\u5177\u4f53\u7684\u306a\u52d5\u4f5c\u3092\u30c6\u30b9\u30c8\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n  <li><strong>\u89e3\u91c8<\/strong>: CRON_TZ \u306f\u3001\u6b21\u306e\u884c\u307e\u305f\u306f\u30d6\u30ed\u30c3\u30af\u306b\u5bfe\u3057\u3066\u306e\u307f\u6709\u52b9\u3067\u3042\u308a\u3001crontab \u5168\u4f53\u306b\u5bfe\u3057\u3066\u30b0\u30ed\u30fc\u30d0\u30eb\u306b\u6709\u52b9\u306b\u306a\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/li>\n  <li><strong>DST\u306e\u6319\u52d5<\/strong>: \u300c0 2 * * *\u300d\u306e\u5834\u5408\u3001\u73fe\u5730\u6642\u9593\u306e\u9032\u307f\u8abf\u6574\u6642\u306b\u306f 02:00 \u306f\u5b58\u5728\u3057\u307e\u305b\u3093 \u2013 \u4e00\u90e8\u306e\u5b9f\u88c5 <em>\u30b9\u30ad\u30c3\u30d7\u3059\u308b<\/em>, \u3001\u305d\u306e\u4ed6 <em>\u8ffd\u3044\u3064\u304f<\/em> 03:00\u3002\u30ea\u30bb\u30c3\u30c8\uff0802:00 2\u56de\uff09\u3067\u306f\u30012\u56de\u306e\u8d70\u884c\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/li>\n  <li><strong>\u8a3a\u65ad<\/strong>: \u8a08\u7b97\u3055\u308c\u305f\u30ed\u30fc\u30ab\u30eb\u6642\u9593\u3068UTC\u6642\u9593\u3092\u51fa\u529b\u3059\u308b\u660e\u793a\u7684\u306a\u30b8\u30e7\u30d6\u3092\u4f5c\u6210\u3057\u3001\u5207\u308a\u66ff\u3048\u524d\u5f8c\u5c11\u306a\u304f\u3068\u30822\u65e5\u9593\u3001\u5b9f\u969b\u306e\u30c8\u30ea\u30ac\u30fc\u6642\u9593\u3092\u76e3\u8996\u3057\u307e\u3059\u3002.<\/li>\n<\/ul>\n<p>CRON_TZ \u304c\u6b20\u843d\u3057\u3066\u3044\u308b\u304b\u3001\u4e0d\u78ba\u304b\u306a\u5834\u5408\u306f\u3001\u79c1\u306f <strong>\u30b5\u30fc\u30d0\u30fcUTC<\/strong> \u305d\u3057\u3066\u3001\u30ed\u30fc\u30ab\u30eb\u30bf\u30a4\u30e0\u306e\u30ed\u30b8\u30c3\u30af\u3092\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u4e00\u8cab\u3057\u3066\u9069\u7528\u3057\u307e\u3059\u3002.<\/p>\n\n<h2>\u7279\u5225\u306a\u30b1\u30fc\u30b9\uff1a@daily\u3001@reboot\u3001Anacron\u3001Catch-up<\/h2>\n<p>\u7565\u8a9e <code>@hourly<\/code>, <code>@daily<\/code>, <code>@weekly<\/code> \u4fbf\u5229\u3067\u3059\u304c\u3001DST \u306e\u591c\u9593\u306f\u5fc5\u305a\u3057\u3082\u660e\u78ba\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u300c@daily\u300d\u306f\u300c1 \u30ab\u30ec\u30f3\u30c0\u30fc\u65e5 1 \u56de\u300d\u3092\u610f\u5473\u3057\u3001\u5fc5\u305a\u3057\u3082 24 \u6642\u9593\u3054\u3068\u306b\u5b9f\u884c\u3055\u308c\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001\u6642\u9593\u306e\u30b8\u30e3\u30f3\u30d7\u306b\u3088\u308a\u3001\u5b9f\u969b\u306e\u5b9f\u884c\u6642\u9593\u306f\u305a\u308c\u307e\u3059\u3002\u591c\u9593\u306f\u96fb\u6e90\u304c\u5207\u308c\u3066\u3044\u308b\u30ce\u30fc\u30c8\u30d1\u30bd\u30b3\u30f3\u3084 VM \u306b\u3064\u3044\u3066\u306f\u3001 <strong>\u30a2\u30ca\u30af\u30ed\u30f3<\/strong> \u5931\u6557\u3057\u305f\u5b9f\u884c\u3002\u5f93\u6765\u306ecron\u3067\u306f\u3053\u308c\u306f\u884c\u308f\u308c\u307e\u305b\u3093\u3002\u79c1\u306f\u3001\u5404\u30b8\u30e7\u30d6\u306b\u3064\u3044\u3066\u3001\u4ee5\u4e0b\u3092\u660e\u793a\u7684\u306b\u8a18\u9332\u3057\u3066\u3044\u307e\u3059\u3002 <em>\u30ad\u30e3\u30c3\u30c1\u30a2\u30c3\u30d7<\/em> \u5e0c\u671b\u901a\u308a\u3001\u6280\u8853\u7684\u306b\u5b9f\u88c5\u3057\u307e\u3059\u3002<\/p>\n<ul>\n  <li><strong>\u30ad\u30e3\u30c3\u30c1\u30a2\u30c3\u30d7\u306a\u3057<\/strong>\uff1a\u8ca1\u52d9\u307e\u305f\u306f\u8f38\u5165\u30a6\u30a3\u30f3\u30c9\u30a6 \u2013 \u9045\u5ef6\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u610f\u56f3\u7684\u306b\u30b9\u30ad\u30c3\u30d7\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002.<\/li>\n  <li><strong>\u30ad\u30e3\u30c3\u30c1\u30a2\u30c3\u30d7<\/strong>\uff1a\u4e00\u8cab\u3057\u305f\u30c7\u30a4\u30ea\u30fc\u30ec\u30dd\u30fc\u30c8 \u2013 \u9003\u3057\u305f\u30e9\u30f3\u30cb\u30f3\u30b0\u3092\u88dc\u3044\u3001\u30a2\u30d7\u30ea\u3067\u300c\u9045\u308c\u305f\u30e9\u30f3\u30cb\u30f3\u30b0\u300d\u3068\u3057\u3066\u30de\u30fc\u30af\u3059\u308b\u3002.<\/li>\n  <li><strong>@reboot<\/strong>: \u6700\u521d\u306e\u6574\u7406\u306b\u306f\u6709\u52b9\u3067\u3059\u304c\u3001\u9003\u3057\u305f\u6642\u9593\u67a0\u306e\u4ee3\u308f\u308a\u306b\u306f\u306a\u308a\u307e\u305b\u3093\u3002.<\/li>\n<\/ul>\n\n<h2>PHP\u3001cPanel\u3001WHMCS \u306e\u8a2d\u5b9a\u3092\u30af\u30ea\u30fc\u30f3\u306b\u4fdd\u3064<\/h2>\n<p>\u7279\u306bPHP\u30b9\u30bf\u30c3\u30af\u3067\u306f\u3001\u8a2d\u5b9a\u304c\u885d\u7a81\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002Web\u30b5\u30fc\u30d0\u30fcPHP\u306f\u3001\u591a\u304f\u306e\u5834\u5408\u3001\u5225\u306e\u8a2d\u5b9a\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002 <strong>\u30bf\u30a4\u30e0\u30be\u30fc\u30f3<\/strong> CLI \u3088\u308a\u3082\u9045\u3044\u305f\u3081\u3001cron \u30b8\u30e7\u30d6\u306f\u7570\u306a\u308b\u6642\u9593\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002\u300cphp -i | grep date.timezone\u300d\u3067\u78ba\u8a8d\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u300cphp -d date.timezone=\u201eEurope\/Berlin\u201c script.php\u300d\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002 cPanel \u307e\u305f\u306f Jailshell \u74b0\u5883\u3067\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3092\u5909\u66f4\u3067\u304d\u306a\u3044\u5834\u5408\u3001\u300cdate_default_timezone_set()\u300d\u3092\u4e2d\u592e\u306e\u30b3\u30f3\u30d5\u30a3\u30b0\u306b\u7d44\u307f\u8fbc\u307f\u307e\u3059\u3002\u9045\u5ef6\u3084\u4e8c\u91cd\u5b9f\u884c\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306f\u3001\u307e\u305a\u30a2\u30d7\u30ea\u306e\u81ea\u52d5\u5316\u30d3\u30e5\u30fc\u3068 Cron \u30e1\u30fc\u30eb\u30ec\u30dd\u30fc\u30c8\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306e\u72b6\u6cc1\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u306e\u80cc\u666f\u60c5\u5831\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/webhosting.de\/ja\/cronjobs-%e5%85%b1%e6%9c%89%e3%83%9b%e3%82%b9%e3%83%86%e3%82%a3%e3%83%b3%e3%82%b0-%e4%bf%a1%e9%a0%bc%e6%80%a7%e3%81%ae%e4%bd%8e%e3%81%84%e8%83%8c%e6%99%af-%e4%bb%a3%e6%9b%bf%e6%a1%88-%e3%82%b5\/\">\u5171\u6709\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u304a\u3051\u308bcron\u30b8\u30e7\u30d6<\/a>, \u9650\u3089\u308c\u305f\u30ea\u30bd\u30fc\u30b9\u3068\u4f9d\u5b58\u95a2\u4fc2\u304c\u3001\u3057\u3070\u3057\u3070\u6642\u9593\u306e\u305a\u308c\u3092\u62db\u304f\u304b\u3089\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2025\/12\/cronjobs-zeitzonenproblem-blogbild-5892.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3068\u30bf\u30a4\u30e0\u30be\u30fc\u30f3<\/h2>\n<p>\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092UTC\u3067\u4fdd\u5b58\u3059\u308b\u3068\u3001\u6bd4\u8f03\u3001\u4fdd\u6301\u30ed\u30b8\u30c3\u30af\u3001\u30d0\u30c3\u30af\u30d5\u30a3\u30eb\u304c\u5805\u7262\u306b\u306a\u308a\u307e\u3059\u3002DB\u30a4\u30d9\u30f3\u30c8\u3084\u5185\u90e8\u30b9\u30b1\u30b8\u30e5\u30fc\u30e9\uff08MySQL\u30a4\u30d9\u30f3\u30c8\u30b9\u30b1\u30b8\u30e5\u30fc\u30e9\u3001PG\u62e1\u5f35\u6a5f\u80fd\u306a\u3069\uff09\u304c\u3001\u5fc5\u8981\u306a <strong>\u30bf\u30a4\u30e0\u30d9\u30fc\u30b9<\/strong> \u6d3b\u7528\uff1a\u30bb\u30c3\u30b7\u30e7\u30f3\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3092\u660e\u793a\u7684\u306b\u8a2d\u5b9a\u3057\u3001\u30b8\u30e7\u30d6\u306e\u51fa\u529b\u306bUTC\u3068\u73fe\u5730\u6642\u9593\u3092\u4ed8\u8a18\u3057\u3001\u79fb\u884c\u30b9\u30af\u30ea\u30d7\u30c8\u3067\u306f\u6697\u9ed9\u306e\u5909\u63db\u3092\u8a31\u5bb9\u3057\u306a\u3044\u3002\u73fe\u5730\u306e\u300c\u696d\u52d9\u958b\u59cb\u300d\u306b\u95a2\u3059\u308b\u30d3\u30b8\u30cd\u30b9\u30ed\u30b8\u30c3\u30af\u306b\u3064\u3044\u3066\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u30eb\u30fc\u30eb\uff08\u795d\u65e5\u3001\u30aa\u30d5\u30bb\u30c3\u30c8\u5909\u66f4\uff09\u3092\u767b\u9332\u3057\u3001\u4fdd\u5b58\u3059\u308b\u3002 <em>\u30bd\u30fc\u30b9<\/em> \uff08\u4f8b\uff1a\u300cEurope\/Berlin\u300d\uff09\u3092\u6307\u5b9a\u3057\u3066\u3001\u904e\u53bb\u306e\u5206\u6790\u7d50\u679c\u3092\u518d\u73fe\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n<h2>\u30b3\u30f3\u30c6\u30ca\u3068Docker\u3092\u78ba\u5b9f\u306b\u8a2d\u5b9a\u3059\u308b<\/h2>\n<p>\u30b3\u30f3\u30c6\u30ca\u3067\u306f\u3001\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3092\u660e\u793a\u7684\u306b\u6307\u5b9a\u3057\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u300cENV TZ=Europe\/Berlin\u300d\u3068\u6307\u5b9a\u3057\u307e\u3059\u3002 <strong>Dockerfile<\/strong>. \u3053\u306e\u6307\u5b9a\u304c\u306a\u3044\u5834\u5408\u3001\u30b3\u30f3\u30c6\u30ca\u306f\u30db\u30b9\u30c8\u306e\u6642\u523b\u3092\u5fc5\u305a\u3057\u3082\u7d99\u627f\u305b\u305a\u3001\u5185\u90e8\u3067\u8aa4\u3063\u305f\u8a08\u7b97\u3092\u884c\u3044\u307e\u3059\u3002\u7d14\u7c8b\u306a UTC \u30ef\u30fc\u30af\u30ed\u30fc\u30c9\u306b\u3064\u3044\u3066\u306f\u3001\u30b5\u30fc\u30d3\u30b9\u9593\u306e\u76f8\u95a2\u304c\u78ba\u5b9f\u306b\u6a5f\u80fd\u3059\u308b\u3088\u3046\u306b\u3001\u610f\u56f3\u7684\u306b\u300cTZ=UTC\u300d\u3092\u8a2d\u5b9a\u3057\u3001\u30ed\u30b0\u3092\u53b3\u5bc6\u306b UTC \u3067\u4fdd\u6301\u3057\u3066\u3044\u307e\u3059\u3002 \u30aa\u30fc\u30b1\u30b9\u30c8\u30ec\u30fc\u30b7\u30e7\u30f3\u74b0\u5883\u3067\u306f\u3001\u30a4\u30e1\u30fc\u30b8\u306e Readme \u306b\u4ed5\u69d8\u3092\u8a18\u8f09\u3057\u3001\u65e5\u4ed8\u4f9d\u5b58\u306e\u30d5\u30a3\u30af\u30b9\u30c1\u30e3\u3092\u4f7f\u7528\u3057\u3066\u5b9f\u884c\u3092\u30c6\u30b9\u30c8\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u5358\u4e00\u306e\u30b3\u30f3\u30c6\u30ca\u304c <strong>\u30d7\u30e9\u30f3\u30cb\u30f3\u30b0<\/strong> \u30ef\u30fc\u30af\u30d5\u30ed\u30fc\u5168\u4f53\u3092\u79fb\u52d5\u3057\u307e\u3059\u3002.<\/p>\n\n<h2>Kubernetes \u304a\u3088\u3073\u30af\u30e9\u30a6\u30c9\u30b9\u30b1\u30b8\u30e5\u30fc\u30e9\u306b\u3064\u3044\u3066<\/h2>\n<p>\u591a\u304f\u306e\u30aa\u30fc\u30b1\u30b9\u30c8\u30ec\u30fc\u30b7\u30e7\u30f3\u74b0\u5883\u306f\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30ec\u30d9\u30eb\u3067\u3001\u305d\u3057\u3066\u591a\u304f\u306e\u5834\u5408 <strong>UTC<\/strong>. \u305d\u306e\u305f\u3081\u3001\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3054\u3068\u306b\u3001\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u56fa\u6709\u306e\u60c5\u5831\u304c\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u308b\u304b\u3001\u7121\u8996\u3055\u308c\u308b\u304b\u3092\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u3002\u30cd\u30a4\u30c6\u30a3\u30d6\u306e TZ \u30b5\u30dd\u30fc\u30c8\u304c\u306a\u3044\u5834\u5408\u3001\u79c1\u306f\u5b9f\u7e3e\u306e\u3042\u308b\u30d1\u30bf\u30fc\u30f3\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u30af\u30e9\u30b9\u30bf\u306f UTC\u3001Cron \u306f UTC \u3067\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u73fe\u5730\u6642\u9593\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002\u91cd\u8981\u306a\u306e\u306f\u3001\u4ee5\u4e0b\u306e\u5834\u5408\u306b\u304a\u3051\u308b\u660e\u78ba\u306a\u52d5\u4f5c\u3067\u3059\u3002 <em>\u30df\u30b9<\/em>\uff1a\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u304c\u6545\u969c\u3057\u305f\u5834\u5408\u3001\u5b9f\u884c\u306f\u518d\u5b9f\u884c\u3055\u308c\u308b\u306e\u304b\u3001\u305d\u308c\u3068\u3082\u5931\u52b9\u3059\u308b\u306e\u304b\uff1f\u3053\u306e\u6c7a\u5b9a\u3092 SLO\uff08\u6700\u5927\u9045\u5ef6\u3001\u8a31\u5bb9\u7bc4\u56f2\uff09\u3068\u3068\u3082\u306b\u6587\u66f8\u5316\u3057\u3001\u30d5\u30a7\u30a4\u30eb\u30aa\u30fc\u30d0\u30fc\u30b7\u30ca\u30ea\u30aa\u3092\u610f\u56f3\u7684\u306b\u30c6\u30b9\u30c8\u3057\u307e\u3059\u3002.<\/p>\n\n<h2>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5074\u306e\u5236\u5fa1\u3068\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af<\/h2>\n<p>\u591a\u304f\u306e\u30b9\u30b1\u30b8\u30e5\u30fc\u30e9\u30e9\u30a4\u30d6\u30e9\u30ea\u306f\u3001\u5b9f\u969b\u306e\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u6307\u5b9a\u3092\u8a31\u53ef\u3057\u3066\u304a\u308a\u3001DST \u306e\u51e6\u7406\u304c\u975e\u5e38\u306b\u5bb9\u6613\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002 <strong>\u7c21\u7d20\u5316\u3059\u308b<\/strong> \u3067\u304d\u307e\u3059\u3002PHP \u3067\u306f\u300cdate_default_timezone_set()\u300d\u3067\u958b\u59cb\u3057\u3001\u30b5\u30fc\u30d0\u30fc\u306f UTC \u306e\u307e\u307e\u3001\u30a2\u30d7\u30ea\u3092\u30ed\u30fc\u30ab\u30eb\u3067\u8a08\u7b97\u3055\u305b\u307e\u3059\u3002Node.js \u307e\u305f\u306f Python \u3067\u306f\u3001node-schedule \u3084 APScheduler \u306a\u3069\u306e\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u5bfe\u5fdc\u30b9\u30b1\u30b8\u30e5\u30fc\u30e9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002WordPress \u3067\u306f\u3001cron.php \u306b\u3088\u308b\u6a5f\u68b0\u7684\u306a cron \u547c\u3073\u51fa\u3057\u3078\u306e\u4f9d\u5b58\u5ea6\u3092\u4f4e\u6e1b\u3057\u307e\u3059\u3002 <a href=\"https:\/\/webhosting.de\/ja\/wp-cron-%e7%90%86%e8%a7%a3-%e6%9c%80%e9%81%a9%e5%8c%96-%e3%83%af%e3%83%bc%e3%83%89%e3%83%97%e3%83%ac%e3%82%b9-%e3%82%bf%e3%82%b9%e3%82%af%e7%ae%a1%e7%90%86-%e3%82%a8%e3%82%ad%e3%82%b9%e3%83%91\/\">WP-Cron\u306e\u6700\u9069\u5316<\/a> \u305d\u3057\u3066\u3001\u7279\u5b9a\u306e\u30d2\u30c3\u30c8\u3092\u30c8\u30ea\u30ac\u30fc\u3059\u308b\u30b5\u30fc\u30d0\u30fc\u306ecron\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u30a2\u30d7\u30ea\u306f\u6642\u9593\u3092\u5236\u5fa1\u3057\u3001cron\u306f <strong>\u30c8\u30ea\u30ac\u30fc<\/strong>.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2025\/12\/cron_timezone_issue_4892.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30a4\u30c7\u30f3\u30dd\u30c6\u30f3\u30c4\u3001\u30ed\u30c3\u30ad\u30f3\u30b0\u3001\u304a\u3088\u3073\u91cd\u8907<\/h2>\n<p>\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u306e\u554f\u984c\u306f\u3001\u4ed5\u4e8b\u304c\u91cd\u8907\u3057\u305f\u308a\u4e8c\u91cd\u306b\u884c\u308f\u308c\u305f\u308a\u3059\u308b\u3068\u304d\u306b\u7279\u306b\u9855\u8457\u306b\u306a\u308a\u307e\u3059\u3002\u79c1\u306f\u30bf\u30b9\u30af\u3092\u8a2d\u8a08\u3057\u307e\u3059\u3002 <strong>\u3079\u304d\u3079\u304d<\/strong> \u305d\u3057\u3066\u3001\u30ed\u30c3\u30ad\u30f3\u30b0\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<ul>\n  <li><strong>\u7fa4\u308c<\/strong>\u300cflock -n \/var\/lock\/job.lock \u2014 script.sh\u300d\u306f\u4e26\u5217\u8d77\u52d5\u3092\u9632\u6b62\u3057\u3001\u7d42\u4e86\u30b3\u30fc\u30c9 1 \u306f\u30a2\u30e9\u30fc\u30c8\u3092\u30c8\u30ea\u30ac\u30fc\u3057\u307e\u3059\u3002.<\/li>\n  <li><strong>DB\u30ed\u30c3\u30af<\/strong>\u5206\u6563\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001DB\u30d9\u30fc\u30b9\u306e\u30df\u30e5\u30fc\u30c6\u30c3\u30af\u30b9\u3092\u63a1\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u5236\u5fa1\u306f\u30db\u30b9\u30c8\u304b\u3089\u72ec\u7acb\u3057\u305f\u307e\u307e\u306b\u306a\u308a\u307e\u3059\u3002.<\/li>\n  <li><strong>\u91cd\u8907\u6392\u9664<\/strong>\uff1a\u5404\u5b9f\u884c\u306b\u306f\u5b9f\u884cID\uff08\u4f8b\uff1a\u65e5\u4ed8+\u30b9\u30ed\u30c3\u30c8\uff09\u304c\u5272\u308a\u5f53\u3066\u3089\u308c\u307e\u3059\u3002\u30a2\u30d7\u30ea\u306f\u66f8\u304d\u8fbc\u307f\u64cd\u4f5c\u306e\u524d\u306b\u3001\u305d\u306e\u30b9\u30ed\u30c3\u30c8\u304c\u3059\u3067\u306b\u51e6\u7406\u6e08\u307f\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002.<\/li>\n  <li><strong>\u30bb\u30fc\u30d5\u30a6\u30a3\u30f3\u30c9\u30a6<\/strong>\uff1a\u5b9f\u884c\u304c\u6709\u52b9\u306a\u51e6\u7406\u30a6\u30a3\u30f3\u30c9\u30a6\u3092\u5b9a\u7fa9\u3057\u307e\u3059\uff08\u4f8b\uff1a\u73fe\u5730\u6642\u9593 08:55\uff5e09:10\uff09\u3002\u3053\u306e\u6642\u9593\u5916\u306f\u3001\u4fe1\u53f7\u3067\u4e2d\u6b62\u3057\u307e\u3059\u3002.<\/li>\n<\/ul>\n\n<h2>\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3001\u30ed\u30ae\u30f3\u30b0\u3001\u30a2\u30e9\u30fc\u30e0<\/h2>\n<p>\u79c1\u306fCron\u306e\u51fa\u529b\u306f\u300c\/dev\/null\u300d\u306b\u306f\u6c7a\u3057\u3066\u8ee2\u9001\u305b\u305a\u3001\u5c02\u7528\u306e <strong>\u904e\u53bb\u30ed\u30b0<\/strong> UTC \u304a\u3088\u3073\u73fe\u5730\u6642\u9593\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u4ed8\u304d\u3002JSON \u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u3088\u308b\u69cb\u9020\u5316\u3055\u308c\u305f\u51fa\u529b\u306b\u3088\u308a\u3001\u5f8c\u3067\u306e\u8a55\u4fa1\u304c\u975e\u5e38\u306b\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059\u3002\u30a2\u30e9\u30fc\u30c8\u306b\u3064\u3044\u3066\u306f\u3001\u7279\u306b DST \u306e\u591c\u9593\u306b\u304a\u3044\u3066\u3001\u969c\u5bb3\u3001\u9045\u5ef6\u3001\u91cd\u8907\u5b9f\u884c\u304c\u306a\u3044\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u30d3\u30b8\u30cd\u30b9\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u30b8\u30e7\u30d6\u306b\u3064\u3044\u3066\u306f\u3001\u5b9f\u884c\u6642\u9593\u3068\u6700\u5f8c\u306e\u6210\u529f\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u500b\u5225\u306b\u8ffd\u8de1\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u50be\u5411\u3092\u628a\u63e1\u3057\u3001 <strong>\u30a2\u30ce\u30de\u30ea\u30fc<\/strong> \u969c\u5bb3\u304c\u767a\u751f\u3059\u308b\u524d\u306b\u6355\u6349\u3059\u308b\u3002.<\/p>\n\n<h2>\u76e3\u67fb\u53ef\u80fd\u306a\u6642\u9593\u5f62\u5f0f<\/h2>\n<p>\u79c1\u306f\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092ISO-8601\u5f62\u5f0f\uff08UTC\u306b\u300cZ\u300d\u3092\u4ed8\u52a0\uff09\u3067\u4e00\u8cab\u3057\u3066\u8a18\u8ff0\u3057\u3001\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u73fe\u5730\u6642\u9593\u3092\u62ec\u5f27\u5185\u306b\u8ffd\u52a0\u3057\u3001\u4e00\u610f\u306e\u5b9f\u884cID\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002\u30b7\u30b9\u30c6\u30e0\u6642\u523b\u306e\u4fee\u6b63\uff08NTP\u30b9\u30c6\u30c3\u30d7\uff09\u306b\u3064\u3044\u3066\u306f\u3001\u30aa\u30d5\u30bb\u30c3\u30c8\u3092\u8a18\u9332\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u6642\u8a08\u304c\u98db\u3073\u8d8a\u3048\u305f\u5834\u5408\u3067\u3082\u3001\u5206\u6790\u306f\u6b63\u78ba\u306b\u4fdd\u305f\u308c\u307e\u3059\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2025\/12\/cronjob_timezone_issue_4927.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u5178\u578b\u7684\u306a\u30b7\u30ca\u30ea\u30aa\u3068\u5177\u4f53\u7684\u306a\u89e3\u6c7a\u7b56<\/h2>\n<p>\u56fd\u969b\u7684\u306b\u6d3b\u52d5\u3059\u308b\u30c1\u30fc\u30e0\u306f\u3001\u8907\u6570\u306e\u9867\u5ba2\u306b\u5bfe\u3057\u3066\u540c\u3058\u4ed5\u4e8b\u3092\u8a08\u753b\u3059\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002 <strong>\u5730\u57df<\/strong>. \u79c1\u306f\u3001\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3054\u3068\u306b\u500b\u5225\u306ecron\u30b8\u30e7\u30d6\u3092\u4f7f\u7528\u3059\u308b\u304b\u3001\u5b9f\u884c\u6642\u306bUTC\u6642\u9593\u3092\u30ed\u30fc\u30ab\u30eb\u3067\u5909\u63db\u3059\u308b\u30a2\u30d7\u30ea\u30ed\u30b8\u30c3\u30af\u3092\u4f7f\u7528\u3057\u3066\u3001\u3053\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3057\u3066\u3044\u307e\u3059\u3002 Jailshell \u306a\u3069\u3001\u6a29\u9650\u304c\u5236\u9650\u3055\u308c\u3066\u3044\u308b\u74b0\u5883\u3067\u306f\u3001\u5236\u5fa1\u3092\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u8a2d\u5b9a\u306b\u79fb\u3057\u307e\u3059\u3002Docker \u3067\u306f\u3001\u660e\u78ba\u306b\u5b9a\u7fa9\u3055\u308c\u305f TZ \u5909\u6570\u3092\u512a\u5148\u3057\u3001\u5236\u5fa1\u3055\u308c\u305f\u30b7\u30b9\u30c6\u30e0\u6642\u9593\u3067\u30c6\u30b9\u30c8\u3057\u307e\u3059\u3002\u4e21\u65b9\u306e\u4e16\u754c\u304c\u4ea4\u308f\u308b\u5834\u5408\u3001\u79c1\u306f\u8cac\u4efb\u3092\u5206\u96e2\u3057\u307e\u3059\u3002Cron \u306f <strong>\u30b9\u30bf\u30fc\u30c8\u6642\u9593<\/strong>, \u3053\u306e\u30a2\u30d7\u30ea\u306f\u3001\u898f\u5247\u3001\u795d\u65e5\u3001\u73fe\u5730\u306e\u30aa\u30d5\u30bb\u30c3\u30c8\u3092\u8a8d\u8b58\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n<h2>systemd\u30bf\u30a4\u30de\u30fc\u3092\u4ee3\u66ff\u624b\u6bb5\u3068\u3057\u3066<\/h2>\n<p>Linux\u30db\u30b9\u30c8\u3067\u306f\u3001\u79c1\u306f\u4ee5\u4e0b\u3092\u597d\u3093\u3067\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002 <strong>systemd \u30bf\u30a4\u30de\u30fc<\/strong>, \u300cPersistent=\u300d\u3001\u300cRandomizedDelaySec=\u300d\u3001\u307e\u305f\u306f\u5b9a\u7fa9\u3055\u308c\u305f\u7cbe\u5ea6\u306a\u3069\u306e\u6a5f\u80fd\u304c\u5fc5\u8981\u306a\u5834\u5408\u3002 \u30bf\u30a4\u30e0\u30ed\u30b8\u30c3\u30af\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u30ed\u30fc\u30ab\u30eb\u30b7\u30b9\u30c6\u30e0\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3092\u89e3\u91c8\u3059\u308b\u305f\u3081\u3001\u79c1\u306e\u57fa\u672c\u30eb\u30fc\u30eb\u306f\u3001\u30db\u30b9\u30c8\u3092 UTC \u306b\u8a2d\u5b9a\u3057\u3001\u30bf\u30a4\u30de\u30fc\u3092\u5b9a\u7fa9\u3057\u3066\u3001\u30a2\u30d7\u30ea\u304c\u30ed\u30fc\u30ab\u30eb\u3067\u8a08\u7b97\u3092\u884c\u3046\u3068\u3044\u3046\u3082\u306e\u3067\u3059\u3002\u6c38\u7d9a\u7684\u306a\u30bf\u30a4\u30de\u30fc\u306f\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u30a6\u30a3\u30f3\u30c9\u30a6\u3067\u4fbf\u5229\u306a\u3001\u5b9f\u884c\u3092\u898b\u9003\u3057\u305f\u51e6\u7406\u3092\u5f8c\u8ffd\u3044\u3067\u5b9f\u884c\u3057\u307e\u3059\u3002\u300cAccuracySec\u300d\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u5e0c\u671b\u306e\u30b9\u30ed\u30c3\u30c8\u30ed\u30b8\u30c3\u30af\u3092\u653e\u68c4\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u30b5\u30f3\u30c0\u30ea\u30f3\u30b0\u30cf\u30fc\u30c9\u52b9\u679c\u3092\u5e73\u6ed1\u5316\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n\n<h2>\u3055\u307e\u3056\u307e\u306a\u74b0\u5883\u306e\u6bd4\u8f03<\/h2>\n<p>\u4ee5\u4e0b\u306e\u6982\u8981\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u3082\u306e\u3092\u5206\u985e\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002 <strong>\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7<\/strong>. \u79c1\u306f\u3001\u4e00\u8cab\u6027\u3001\u52b4\u529b\u3001\u304a\u3088\u3073\u5178\u578b\u7684\u306a\u969c\u5bb3\u3092\u8a55\u4fa1\u3057\u307e\u3059\u3002\u591a\u304f\u306e\u30c1\u30fc\u30e0\u3067\u306f\u3001\u30ed\u30fc\u30ab\u30eb\u30bf\u30a4\u30e0\u304c\u5fc5\u8981\u306a\u5834\u5408\u3001CRON_TZ \u307e\u305f\u306f App-TZ \u3092\u8ffd\u52a0\u3057\u305f\u30b0\u30ed\u30fc\u30d0\u30eb UTC \u30b5\u30fc\u30d0\u30fc\u304c\u6709\u7528\u3067\u3059\u3002Docker \u306f\u3001\u30c7\u30d7\u30ed\u30a4\u30e1\u30f3\u30c8\u306b\u518d\u5229\u7528\u53ef\u80fd\u306a\u30a4\u30e1\u30fc\u30b8\u3068\u660e\u78ba\u306a\u4ed5\u69d8\u304c\u5fc5\u8981\u306a\u5834\u5408\u306b\u512a\u4f4d\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30af\u30e9\u30a6\u30c9\u30b5\u30fc\u30d3\u30b9\u306f\u67d4\u8edf\u6027\u3092\u7dad\u6301\u3057\u307e\u3059\u304c\u3001\u30af\u30ea\u30fc\u30f3\u306a <strong>\u69cb\u6210<\/strong> \u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3068\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u30b8\u30e7\u30d6\u306b\u95a2\u3059\u308b\u30d1\u30e9\u30e1\u30fc\u30bf\u3002.<\/p>\n<table>\n  <thead>\n    <tr>\n      <th>\u5468\u8fba\u74b0\u5883<\/th>\n      <th>\u30e1\u30ea\u30c3\u30c8<\/th>\n      <th>\u30c7\u30e1\u30ea\u30c3\u30c8<\/th>\n      <th>\u63a8\u85a6<\/th>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr>\n      <td>UTC\u30b5\u30fc\u30d0\u30fc<\/td>\n      <td>\u7d71\u4e00\u3001DST\u306a\u3057<\/td>\n      <td>\u73fe\u5730\u3067\u306e\u63db\u7b97\u304c\u5fc5\u8981<\/td>\n      <td>\u30b5\u30fc\u30d0\u30fc\u6642\u9593\u3092UTC\u306b\u8a2d\u5b9a\u3002\u30a2\u30d7\u30ea\u307e\u305f\u306fCRON_TZ\u3067\u73fe\u5730\u6642\u9593\u3092\u8a2d\u5b9a\u3002<\/td>\n    <\/tr>\n    <tr>\n      <td>\u73fe\u5730\u306e\u30bf\u30a4\u30e0\u30be\u30fc\u30f3<\/td>\n      <td>\u30c1\u30fc\u30e0\u306b\u3068\u3063\u3066\u76f4\u611f\u7684<\/td>\n      <td>DST\u30ea\u30b9\u30af<\/td>\n      <td>\u30b8\u30e7\u30d6\u3054\u3068\u306eCRON_TZ; \u79fb\u884c\u65e5\u306e\u591c\u306b\u884c\u308f\u308c\u308b\u30c6\u30b9\u30c8<\/td>\n    <\/tr>\n    <tr>\n      <td>\u30c9\u30c3\u30ab\u30fc<\/td>\n      <td>\u518d\u73fe\u53ef\u80fd\u306a\u30a4\u30e1\u30fc\u30b8<\/td>\n      <td>TZ\u306e\u306a\u3044\u30db\u30b9\u30c8\u4f9d\u5b58\u6027<\/td>\n      <td>Dockerfile \u306e ENV TZ\u3001UTC \u3067\u306e\u30ed\u30b0<\/td>\n    <\/tr>\n    <tr>\n      <td>\u30af\u30e9\u30a6\u30c9\u7ba1\u7406<\/td>\n      <td>\u8fc5\u901f\u306a\u62e1\u5f35<\/td>\n      <td>\u30d1\u30e9\u30e1\u30fc\u30bf\u9650\u754c<\/td>\n      <td>\u5171\u540c TZ\/TRIGGER \u3067\u306e\u30b5\u30fc\u30d3\u30b9 <strong>\u30c1\u30a7\u30c3\u30af<\/strong><\/td>\n    <\/tr>\n  <\/tbody>\n<\/table>\n\n<h2>\u6642\u9593\u30bd\u30fc\u30b9\u3001NTP\u3001\u304a\u3088\u3073\u6642\u9593\u30c9\u30ea\u30d5\u30c8<\/h2>\n<p>\u30b7\u30b9\u30c6\u30e0\u6642\u8a08\u304c\u305a\u308c\u3066\u3044\u3066\u3001Cron \u304c\u305d\u308c\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u6b63\u3057\u3044\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3082\u3042\u307e\u308a\u5f79\u306b\u7acb\u3061\u307e\u305b\u3093\u3002 <strong>\u9593\u9055\u3063\u305f<\/strong> \u6642\u523b\u306f\u6b63\u3057\u3044\u3068\u8a8d\u3081\u3089\u308c\u307e\u3059\u3002\u79c1\u306f NTP\/Chrony \u3092\u63a1\u7528\u3057\u3001\u7279\u306b VPS \u3084\u30b3\u30f3\u30c6\u30ca\u3067\u306f\u30aa\u30d5\u30bb\u30c3\u30c8\u3092\u5b9a\u671f\u7684\u306b\u30c1\u30a7\u30c3\u30af\u3057\u3066\u3044\u307e\u3059\u3002\u4e00\u8cab\u6027\u306e\u3042\u308b\u6642\u523b\u30bd\u30fc\u30b9\u306f\u3001\u91cd\u5927\u306a\u72b6\u6cc1\u306b\u306a\u3063\u305f\u3068\u304d\u306b\u30ec\u30dd\u30fc\u30c8\u3067\u9855\u8457\u306b\u306a\u308b\u3001\u5f90\u3005\u306b\u751f\u3058\u308b\u305a\u308c\u3092\u9632\u304e\u307e\u3059\u3002\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u3092\u3054\u89a7\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/webhosting.de\/ja\/%e3%82%bf%e3%82%a4%e3%83%a0%e3%83%89%e3%83%aa%e3%83%95%e3%83%88-ntp-%e3%82%af%e3%83%ad%e3%83%8b%e3%83%bc-%e3%83%9b%e3%82%b9%e3%83%86%e3%82%a3%e3%83%b3%e3%82%b0-%e6%99%82%e5%88%bb%e5%90%8c%e6%9c%9f\/\">\u30bf\u30a4\u30e0\u30c9\u30ea\u30d5\u30c8\u3068NTP<\/a>, \u306a\u305c\u306a\u3089\u3001\u6b63\u78ba\u306a\u540c\u671f\u306f\u3042\u3089\u3086\u308b\u8a08\u753b\u306e\u57fa\u790e\u3068\u306a\u308b\u304b\u3089\u3067\u3059\u3002\u3053\u306e\u30b9\u30c6\u30c3\u30d7\u304c\u306a\u3051\u308c\u3070\u3001\u3059\u3079\u3066\u306e cron \u6700\u9069\u5316\u306f\u5358\u306a\u308b <strong>\u8217\u88c5<\/strong>.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2025\/12\/cronjobs-timezone-issues-4621.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u8a66\u9a13\u65b9\u6cd5\u3068\u518d\u73fe\u6027<\/h2>\n<p>\u79c1\u306f\u3001\u78ba\u5b9a\u7684\u306a\u65b9\u6cd5\u3067\u6642\u9593\u30ed\u30b8\u30c3\u30af\u3092\u30c6\u30b9\u30c8\u3057\u3066\u3044\u307e\u3059\u3002\u56fa\u5b9a\u306e\u300cTZ\u300d\u3092\u6301\u3064\u30b3\u30f3\u30c6\u30ca\u3001\u5206\u96e2\u3055\u308c\u305f\u30cd\u30fc\u30e0\u30b9\u30da\u30fc\u30b9\u306b\u3088\u308b\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\u3055\u308c\u305f\u30b7\u30b9\u30c6\u30e0\u6642\u9593\u3001\u304a\u3088\u3073\u300czdump\u300d\/\u300cdate\u300d\u306b\u3088\u308b\u65e2\u77e5\u306e DST \u5909\u66f4\u306b\u5bfe\u3059\u308b\u691c\u8a3c\u3067\u3059\u3002 \u5404 Cron \u5f0f\u306b\u306f\u3001\u7279\u5225\u306a\u65e5\u3092\u542b\u3080\u3001\u4e88\u60f3\u3055\u308c\u308b UTC\/\u73fe\u5730\u6642\u9593\u306e\u5c0f\u3055\u306a\u30de\u30c8\u30ea\u30c3\u30af\u30b9\u304c\u3042\u308a\u307e\u3059\u3002\u30ab\u30ec\u30f3\u30c0\u30fc\u306b\u4f9d\u5b58\u3059\u308b\u30b8\u30e7\u30d6\uff08\u4f8b\uff1a\u300c\u6700\u7d42\u55b6\u696d\u65e5\u300d\uff09\u306f\u3001\u56fa\u5b9a\u306e\u30c6\u30b9\u30c8\u30b1\u30fc\u30b9\u3092\u542b\u3080\u30a2\u30d7\u30ea\u30ed\u30b8\u30c3\u30af\u306b\u30ab\u30d7\u30bb\u30eb\u5316\u3057\u3066\u3044\u307e\u3059\u3002Cron \u306f\u30d5\u30ec\u30fc\u30e0\u306e\u307f\u3092\u30c8\u30ea\u30ac\u30fc\u3057\u307e\u3059\u3002.<\/p>\n\n<h2>\u5b9f\u65bd\u624b\u9806\u3092\u9023\u7d9a\u3057\u305f\u30c6\u30ad\u30b9\u30c8\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u3068\u3057\u3066<\/h2>\n<p>\u300cUTC\u30b5\u30fc\u30d0\u30fc\u304b\u73fe\u5730\u6642\u9593\u304b\u300d\u306e\u6c7a\u5b9a\u304b\u3089\u59cb\u3081\u3001\u305d\u308c\u3092\u6587\u66f8\u5316\u3057\u3001\u4e00\u8cab\u3057\u3066\u305d\u308c\u3092\u9806\u5b88\u3057\u307e\u3059\u3002 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