Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
145,270 days
From Tuesday, December 12, 1628 to Monday, September 7, 2026.
Monday–Friday weekdays103,764
Weeks and days20,752w 6d
Calendar span397 years, 8 months, 26 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.