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<?php $dt = new DateTime(); $dstr = $dt->format('Y-m-d H:i:s.u'); echo $dstr . "\n"; $dn = DateTime::createFromFormat('Y-m-d H:i:s.u', $dstr); echo $dn->format('U.u') . "\n";
Output for git.master
2013-10-08 12:18:59.003517 1381227539.003517
Output for git.master_jit
2013-10-08 12:18:59.003874 1381227539.003874
Output for rfc.property-hooks
2013-10-08 12:18:59.003805 1381227539.003805

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