Date Calculator
Calculate days between two dates or add/subtract days from any date online. Weekday included. No sign-up.
Difference between dates
Days
260
Weeks
37.1
Hours
6240
Add / subtract days
2026-10-18
Sunday
How to use
- Paste input or drop a file above.
- Adjust options (delimiter, dialect, quality, ratio).
- Copy result or download — no sign-up needed.
FAQ
Inclusive or exclusive?
Exclusive — the difference between the two midnights. Add 1 if you count both endpoints.
Time zones?
Dates are plain calendar days with no timezone math.