Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
155,869 days
From Monday, December 6, 1599 to Monday, September 7, 2026.
Monday–Friday weekdays111,335
Weeks and days22,267w 0d
Calendar span426 years, 9 months, 1 day
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.