Add or subtract dates
Move a date by calendar units. Years are applied first, then months, then weeks and days; invalid month-end dates clamp to that month’s final day.
Thursday, September 9, 2083
Added to Tuesday, August 10, 2083.
ISO date2083-09-09
WeekdayThursday
Absolute day distance30
Month-end clamping happens after years and again after months. For example, subtracting one month from March 31 lands on February 28 or 29.