Home › Tools › Date Add/Subtract Calculator
Free online date add/subtract calculator. Add or subtract days from any date, shows day of week, auto-handles leap years. 🔒 No registration · Data never uploaded
🔒 All processing happens locally in your browser. No data is ever uploaded.
❓ FAQ
How many days can I add/subtract?
You can add or subtract any positive number of days. Cross-month and cross-year calculations are handled.
Does it show the day of week?
Yes, the result automatically shows which day of the week it falls on.
Is data processed locally?
Yes, all calculations happen in your browser. No data is uploaded.