Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
146,220 days
From Thursday, May 7, 1626 to Monday, September 7, 2026.
Monday–Friday weekdays104,442
Weeks and days20,888w 4d
Calendar span400 years, 4 months
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.