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

183,905 days

From Monday, March 5, 1523 to Tuesday, September 8, 2026.

Monday–Friday weekdays131,361
Weeks and days26,272w 1d
Calendar span503 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.