Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
162,918 days
From Monday, August 18, 1580 to Monday, September 7, 2026.
Monday–Friday weekdays116,370
Weeks and days23,274w 0d
Calendar span446 years, 20 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.