Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
138,904 days
From Friday, May 18, 1646 to Monday, September 7, 2026.
Monday–Friday weekdays99,216
Weeks and days19,843w 3d
Calendar span380 years, 3 months, 20 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.