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

180,825 days

From Monday, August 10, 1531 to Tuesday, September 8, 2026.

Monday–Friday weekdays129,161
Weeks and days25,832w 1d
Calendar span495 years, 29 days

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