Date-to-date calculator

Days between dates

Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.

Excluding the start date

261,336 days

From Wednesday, March 11, 1311 to Monday, September 14, 2026.

Monday–Friday weekdays186,668
Weeks and days37,333w 5d
Calendar span715 years, 6 months, 3 days

Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.