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

170,321 days

From Thursday, May 12, 1560 to Monday, September 7, 2026.

Monday–Friday weekdays121,657
Weeks and days24,331w 4d
Calendar span466 years, 3 months, 26 days

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