Days between dates
Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.
162,870 days
From Sunday, October 5, 1580 to Monday, September 7, 2026.
Monday–Friday weekdays116,336
Weeks and days23,267w 1d
Calendar span445 years, 11 months, 2 days
Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.