Start from any date, then add or subtract days, weeks, months or years.
Calendar months and years preserve the day when possible and clamp safely to the last valid day of a shorter month.
Days and weeks move by exact calendar-day counts. Months and years use calendar arithmetic, preserving the original day of the month when that date exists in the destination month.
Use this calculator for contract dates, renewals, follow-ups, project milestones, warranties and any situation where the starting point is not necessarily today.
No. Months have different lengths, so an exact 30-day offset can land on a different date from adding one calendar month.
Calendar years and months are clamped to valid dates, so February 29 and month-end dates remain safe.
Yes. Change the direction from “after” to “before” to move backward.