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<?php list( $a, $b, $c) = explode( ":", "23:31:13"); $mod = $c % 5; $input = $a . ':' . $b . ':' . (($mod < 3) ? $c - $mod : $c + (5 - $mod)); echo $input;
Output for git.master, git.master_jit, rfc.property-hooks
23:31:15

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