Between dates · add & subtract

📅 Date Difference

How far apart are two dates — in years/months/days, total days, weeks and working days? And what date is it 45 days or 3 months from now?

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Add or subtract from a date

Base date

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Working days count Monday–Friday only (public holidays are not subtracted — Vietnam's lunar holidays shift every year). Adding months clamps to month end: 31 Jan + 1 month = 28/29 Feb. All math runs in your browser's local timezone.