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

245,109 days

From Tuesday, August 12, 1355 to Saturday, September 12, 2026.

Monday–Friday weekdays175,078
Weeks and days35,015w 4d
Calendar span671 years, 1 month

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