Dart\u306eDate\u30af\u30e9\u30b9\u3092\u4f7f\u3046\u3068\u73fe\u5728\u6642\u523b\u306a\u3069\u3092\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002
\n
\nAPI\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u306b\u660e\u8a00\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u304c\u3001Dart\u306eDate\u30af\u30e9\u30b9\u306f\u3001\u300c1970\/01\/01 00:00:00.000\u300d\u3092\u57fa\u6e96\u3068\u3057\u305f\u5b9f\u88c5\u3068\u306a\u3063\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002\u73fe\u5728\u6642\u523b\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306enow()\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u304c\u63d0\u4f9b\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001\uff081), (2\uff09\u3067\u3001\u307e\u305a\u306f\u305d\u308c\u3092\u4f7f\u3063\u3066\u307f\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3060\u3051\u3067\u300ctime :2012-04-21 06:59:47.095\u300d\u306e\u3088\u3046\u306b\u8868\u793a\u3067\u304d\u307e\u3059\u3002current.value\u306f\u3001\u300c1970\/01\/01 00:00:00.000\u300d\u304b\u3089\u7d4c\u904e\u3057\u305f\u30df\u30ea\u79d2\u306e\u5024\u3068\u306a\u308b\u306e\u3067\u300cmsecs:1334959187095\u300d\u306e\u3088\u3046\u306b\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u5e74\u6708\u65e5\u306a\u3069\u3092\u500b\u5225\u306b\u53d6\u5f97\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u30b3\u30e1\u30f3\u30c8\u3067\u3001\u5404\u5024\u306e\u3068\u308b\u7bc4\u56f2\u3092\u66f8\u3044\u3066\u3042\u308a\u307e\u3059\u3002weekday\u306fDate\u306b\u5b9a\u6570\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u305d\u308c\u3092\u4f7f\u3063\u3066\u6587\u5b57\u5217\u3078\u5909\u66f4\u3057\u3066\u3044\u307e\u3059\u3002\u6708\u306b\u3064\u3044\u3066\u3082Date\u306b\u5b9a\u6570\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u305d\u308c\u3089\u3092\u4f7f\u3063\u3066\u6587\u5b57\u5217\u3078\u5909\u66f4\u3059\u308b\u3088\u3046\u306b\u3057\u305f\u65b9\u304c\u826f\u3044\u306e\u3067\u3059\u304c\u3001\u3061\u3087\u3063\u3068\u624b\u3092\u629c\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n
\r\nclass DateSample {\r\n void run() {\r\n Date current = new Date.now();\r\n print("time :${current}"); \/\/ (1)\r\n print("msecs:${current.value}"); \/\/ (2)\r\n \r\n int y = current.year;\r\n int m = current.month; \/\/ 1..12\r\n int d = current.day; \/\/ 1..31\r\n int h = current.hours; \/\/ 0..23\r\n int min = current.minutes; \/\/ 0..59\r\n int s = current.seconds; \/\/ 0..59\r\n int ms = current.milliseconds; \/\/ 0..999\r\n int w = current.weekday;\r\n String weekday = "";\r\n switch(w) {\r\n case Date.MON: weekday = "MON"; break;\r\n case Date.TUE: weekday = "TUE"; break;\r\n case Date.WED: weekday = "WED"; break;\r\n case Date.THU: weekday = "THU"; break;\r\n case Date.FRI: weekday = "FRI"; break;\r\n case Date.SUN: weekday = "SUN"; break;\r\n case Date.SAT: weekday = "SAT"; break;\r\n }\r\n print("${y}\/${m}\/${d} ${h}:${min}:${s}.${ms} (${weekday})");\r\n \r\n Date date = new Date.withTimeZone(1970, 1, 1, 0, 0, 0, 0, new TimeZone.utc());\r\n print("date(UTC) :${date}");\r\n print("date.value(UTC) :${date.value}"); \/\/ 1970\/01\/01 00:00:00.000\u304c\u57fa\u6e96\r\n print("current-date :${current.difference(date)}");\r\n print("current-date(day) :${current.difference(date).inDays}");\r\n print("current-date(hours):${current.difference(date).inHours}");\r\n print("current-date(mins) :${current.difference(date).inMinutes}");\r\n print("current-date(secs) :${current.difference(date).inSeconds}");\r\n print("current-date(msecs):${current.difference(date).inMilliseconds}");\r\n date = new Date.fromEpoch(0, new TimeZone.local());\r\n print("date(Local) :${date}");\r\n print("date.value(Local) :${date.value}");\r\n }\r\n}\r\nvoid main() {\r\n DateSample app = new DateSample();\r\n app.run();\r\n}\r\n<\/pre>\nDate\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bfwithTimeZone()\u3084\u3001\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bffromEpoch()\u3092\u4f7f\u3046\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002withTimeZone()\u306f\u3001\u6642\u523b\u3068\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3092\u6307\u5b9a\u3057\u307e\u3059\u3057\u3001fromEpoch()\u306f1970\/01\/01 00:00:00.000\u304b\u3089\u306e\u7d4c\u904e\u30df\u30ea\u79d2\u6570\u3068\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u30b5\u30f3\u30d7\u30eb\u3067\u306f1970\/01\/01 00:00:00.000\u306b\u76f8\u5f53\u3059\u308bDate\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3057\u3066\u3044\u307e\u3059\u304c\u3001withTimeZone()\u3067\u306fUTC\u3092\u3001fromEpoch()\u3067\u306f\u30ed\u30fc\u30ab\u30eb\u306e\u30bf\u30a4\u30e0\u30be\u30fc\u30f3\u3092\u6307\u5b9a\u3057\u3066\u3044\u308b\u3068\u3044\u3046\u9055\u3044\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u3001date.value\u306e\u8868\u793a\u3067UTC\u306e\u3082\u306e\u306f\u300c1970-01-01 00:00:00.000Z\u300d\u3068\u306a\u308a\u307e\u3059\u304c\u3001\u30ed\u30fc\u30ab\u30eb\u306e\u3082\u306e\u306f\u300c1970-01-01 09:00:00.000\u300d\u3068\u306a\u308a\u307e\u3059\u3002inMilliseconds()\u306e\u3088\u3046\u306a\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3046\u3068\u30011970\/01\/01 00:00:00.000\u304b\u3089\u306e\u7d4c\u904e\u6642\u9593\u3092\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u5b9f\u884c\u7d50\u679c\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\r\ntime :2012-04-21 06:59:47.095\r\nmsecs:1334959187095\r\n2012\/4\/21 6:59:47.95 (SAT)\r\ndate(UTC) :1970-01-01 00:00:00.000Z\r\ndate.value(UTC) :0\r\ncurrent-date :370821:59:47.095\r\ncurrent-date(day) :15450\r\ncurrent-date(hours):370821\r\ncurrent-date(mins) :22249319\r\ncurrent-date(secs) :1334959187\r\ncurrent-date(msecs):1334959187095\r\ndate(Local) :1970-01-01 09:00:00.000\r\ndate.value(Local) :0\r\n<\/pre>\n