Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
145,116 days
From Tuesday, May 15, 1629 to Monday, September 7, 2026.
Monday–Friday weekdays103,654
Weeks and days20,730w 6d
Calendar span397 years, 3 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.