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<?php date_default_timezone_set("UTC"); echo (new DateTime("2016-06-19"))->modify("Monday this week")->format("c"), PHP_EOL; echo (new DateTime("2016-06-19"))->format("W"), PHP_EOL, (new DateTime("2016-06-20"))->format("W"), PHP_EOL;
Output for git.master, git.master_jit, rfc.property-hooks
2016-06-13T00:00:00+00:00 24 25

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