Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
151,106 days
From Thursday, December 20, 1612 to Monday, September 7, 2026.
Monday–Friday weekdays107,932
Weeks and days21,586w 4d
Calendar span413 years, 8 months, 18 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.