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

162,929 days

From Thursday, August 7, 1580 to Monday, September 7, 2026.

Monday–Friday weekdays116,377
Weeks and days23,275w 4d
Calendar span446 years, 1 month

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