Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
149,909 days
From Thursday, March 31, 1616 to Monday, September 7, 2026.
Monday–Friday weekdays107,077
Weeks and days21,415w 4d
Calendar span410 years, 5 months, 7 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.