Date-to-date calculator

Days between dates

Count the distance between two Gregorian calendar dates. Weekdays mean Monday through Friday and do not exclude holidays.

Excluding the start date

162,938 days

From Tuesday, July 29, 1580 to Monday, September 7, 2026.

Monday–Friday weekdays116,384
Weeks and days23,276w 6d
Calendar span446 years, 1 month, 9 days

Standard mode excludes the earlier endpoint and includes the later endpoint. Reversed inputs keep the same absolute counts and are identified above.