Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
159,971 days
From Monday, September 12, 1588 to Monday, September 7, 2026.
Monday–Friday weekdays114,265
Weeks and days22,853w 0d
Calendar span437 years, 11 months, 26 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.