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Java Regex for ISO8601
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^([\+-]?\d{4}(?!\d{2}\b))((-?)((0[1-9]|1[0-2])(\3([12]\d|0[1-9]|3[01]))?|W([0-4]\d|5[0-2])(-?[1-7])?|(00[1-9]|0[1-9]\d|[12]\d{2}|3([0-5]\d|6[1-6])))([T\s]((([01]\d|2[0-3])((:?)[0-5]\d)?|24\:?00)([\.,]\d+(?!:))?)?(\17[0-5]\d([\.,]\d+)?)?([zZ]|([\+-])([01]\d|2[0-3]):?([0-5]\d)?)?)?)?$ | |
// Match | |
2009-12T12:34 | |
2009 | |
2009-05-19 | |
2009-05-19 | |
20090519 | |
2009123 | |
2009-05 | |
2009-123 | |
2009-222 | |
2009-001 | |
2009-W01-1 | |
2009-W51-1 | |
2009-W511 | |
2009-W33 | |
2009W511 | |
2009-05-19 | |
2009-05-19 00:00 | |
2009-05-19 14 | |
2009-05-19 14:31 | |
2009-05-19 14:39:22 | |
2009-05-19T14:39Z | |
2009-W21-2 | |
2009-W21-2T01:22 | |
2009-139 | |
2009-05-19 14:39:22-06:00 | |
2009-05-19 14:39:22+0600 | |
2009-05-19 14:39:22-01 | |
20090621T0545Z | |
2007-04-06T00:00 | |
2007-04-05T24:00 | |
2010-02-18T16:23:48.5 | |
2010-02-18T16:23:48,444 | |
2010-02-18T16:23:48,3-06:00 | |
2010-02-18T16:23.4 | |
2010-02-18T16:23,25 | |
2010-02-18T16:23.33+0600 | |
2010-02-18T16.23334444 | |
2010-02-18T16,2283 | |
2009-05-19 143922.500 | |
2009-05-19 1439,55 | |
// Not match | |
200905 | |
2009367 | |
2009- | |
2007-04-05T24:50 | |
2009-000 | |
2009-M511 | |
2009M511 | |
2009-05-19T14a39r | |
2009-05-19T14:3924 | |
2009-0519 | |
2009-05-1914:39 | |
2009-05-19 14: | |
2009-05-19r14:39 | |
2009-05-19 14a39a22 | |
200912-01 | |
2009-05-19 14:39:22+06a00 | |
2009-05-19 146922.500 | |
2010-02-18T16.5:23.35:48 | |
2010-02-18T16:23.35:48 | |
2010-02-18T16:23.35:48.45 | |
2009-05-19 14.5.44 | |
2010-02-18T16:23.33.600 | |
2010-02-18T16,25:23:48,444 |
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