Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
145,548 days
From Thursday, March 9, 1628 to Monday, September 7, 2026.
Monday–Friday weekdays103,962
Weeks and days20,792w 4d
Calendar span398 years, 5 months, 29 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.