In browser
Add or subtract days from a date
Choose a date, direction and amount of days, weeks, months or years. The calculator instantly shows the final date and weekday.
Direction
Unit
Quick actions
Final date
July 08, 2026
Wednesday
Operation
July 01, 2026 -> July 08, 2026Final date
July 08, 2026
Weekday
Wednesday
Operation
Added 7 days
Base date
July 01, 2026
Dates are not saved and are not sent to a server. The calculation uses the browser local calendar date.
Frequently asked questions
- How are days and weeks added?
- Days are counted as calendar days from the base date. Weeks are multiplied by 7 calendar days.
- What happens at the end of a month?
- Months and years use a last-day-of-month rule: January 31 plus 1 month becomes February 28 or 29, not March.
- Is time of day included?
- No. The calculator works only with local calendar dates, without hours, minutes or time zones.
- Is data sent to a server?
- No. The calculation runs locally in the browser, and selected dates stay on your device.