Sarcastic reply, inspired by irritation at a question that's either lazy or senseless or both! (and posted by a Monk of long-standing association with the order: "User since:   Oct 17, 2007 at 21:16 GMT+5")

"DateTime, Date::Calc, many other modules in the Date or DateTime namespace." (Linking omitted, as it was supplied in the excellent answer above.)

In reply to Re^3: Looking for an efficient way to do datetime transfer by ww
in thread Looking for an efficient way to do datetime transfer by lihao

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