Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
155,611 days
From Sunday, August 20, 1600 to Monday, September 7, 2026.
Monday–Friday weekdays111,151
Weeks and days22,230w 1d
Calendar span426 years, 18 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.