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

170,106 days

From Tuesday, December 13, 1560 to Monday, September 7, 2026.

Monday–Friday weekdays121,504
Weeks and days24,300w 6d
Calendar span465 years, 8 months, 25 days

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