Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
145,273 days
From Saturday, December 9, 1628 to Monday, September 7, 2026.
Monday–Friday weekdays103,766
Weeks and days20,753w 2d
Calendar span397 years, 8 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.