Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
139,068 days
From Tuesday, December 5, 1645 to Monday, September 7, 2026.
Monday–Friday weekdays99,334
Weeks and days19,866w 6d
Calendar span380 years, 9 months, 2 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.