Date calculator
Pick a start date, choose add or subtract, then set years, months, weeks, and days — like a calendar-focused date adder.
Result
Saturday, May 16, 2026
2026-05-16
Pick a start date, choose add or subtract, then set years, months, weeks, and days — like a calendar-focused date adder.
Result
Saturday, May 16, 2026
2026-05-16
Years and months adjust on the calendar(month lengths differ). Weeks and days are added after that as ordinary day counts. Results use your browser's local calendar for the selected date.