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

162,202 days

From Wednesday, August 4, 1582 to Monday, September 7, 2026.

Monday–Friday weekdays115,858
Weeks and days23,171w 5d
Calendar span444 years, 1 month, 3 days

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