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

171,596 days

From Thursday, November 15, 1556 to Tuesday, September 8, 2026.

Monday–Friday weekdays122,568
Weeks and days24,513w 5d
Calendar span469 years, 9 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.