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

255,946 days

From Tuesday, December 11, 1325 to Sunday, September 13, 2026.

Monday–Friday weekdays182,818
Weeks and days36,563w 5d
Calendar span700 years, 9 months, 2 days

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