Date & Time
Date Calculator – Add or Subtract Days, Weeks, Months & Years
Add or subtract days, weeks, months, or years from any start date. Get the result calendar date and weekday for deadlines, warranties, and planning.
Add or subtract time from a date
Find what date it is N days, weeks, months, or years before or after a start date. Useful for deadlines, contract end dates, warranty expirations, and project milestones.
Months and years follow the calendar (same day-of-month when possible; end-of-month adjusts for shorter months).