Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
146,054 days
From Tuesday, October 20, 1626 to Monday, September 7, 2026.
Monday–Friday weekdays104,324
Weeks and days20,864w 6d
Calendar span399 years, 10 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.