Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
148,539 days
From Tuesday, December 31, 1619 to Monday, September 7, 2026.
Monday–Friday weekdays106,099
Weeks and days21,219w 6d
Calendar span406 years, 8 months, 7 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.