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

181,909 days

From Tuesday, August 21, 1528 to Tuesday, September 8, 2026.

Monday–Friday weekdays129,935
Weeks and days25,987w 0d
Calendar span498 years, 18 days

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