Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
243,793 days
From Tuesday, March 20, 1359 to Saturday, September 12, 2026.
Monday–Friday weekdays174,138
Weeks and days34,827w 4d
Calendar span667 years, 5 months, 23 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.