Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
146,331 days
From Friday, January 16, 1626 to Monday, September 7, 2026.
Monday–Friday weekdays104,521
Weeks and days20,904w 3d
Calendar span400 years, 7 months, 22 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.