Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
160,594 days
From Monday, December 29, 1586 to Monday, September 7, 2026.
Monday–Friday weekdays114,710
Weeks and days22,942w 0d
Calendar span439 years, 8 months, 9 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.