Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
39,827 days
From Monday, August 20, 1917 to Friday, September 4, 2026.
Monday–Friday weekdays28,449
Weeks and days5,689w 4d
Calendar span109 years, 15 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.