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<?php function _floor($time) { $elm = explode(':', $time); $elm[1] -= $elm[1] % 15; $elm[2] = '00'; return implode(':', $elm); } echo _floor('07:17:46') . PHP_EOL; echo _floor('06:25:25') . PHP_EOL;
Output for git.master, git.master_jit, rfc.property-hooks
07:15:00 06:15:00

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