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

181,489 days

From Tuesday, October 15, 1529 to Tuesday, September 8, 2026.

Monday–Friday weekdays129,635
Weeks and days25,927w 0d
Calendar span496 years, 10 months, 24 days

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