Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
155,864 days
From Saturday, December 11, 1599 to Monday, September 7, 2026.
Monday–Friday weekdays111,331
Weeks and days22,266w 2d
Calendar span426 years, 8 months, 27 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.