$firstday = Date_GetPrev($date, $fdow, 1);

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where $fdow is 1 for Monday or 7 for Sunday. Add 6 to get the last day of week, not 7.

In reply to Re: Get date interval from week of year -> Date::Manip by Thelonius
in thread Get date interval from week of year -> Date::Manip by LupoX

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