Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
141,514 days
From Saturday, March 26, 1639 to Monday, September 7, 2026.
Monday–Friday weekdays101,081
Weeks and days20,216w 2d
Calendar span387 years, 5 months, 12 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.