Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
155,854 days
From Tuesday, December 21, 1599 to Monday, September 7, 2026.
Monday–Friday weekdays111,324
Weeks and days22,264w 6d
Calendar span426 years, 8 months, 17 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.