Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
163,011 days
From Saturday, May 17, 1580 to Monday, September 7, 2026.
Monday–Friday weekdays116,436
Weeks and days23,287w 2d
Calendar span446 years, 3 months, 21 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.