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

171,962 days

From Tuesday, November 15, 1555 to Tuesday, September 8, 2026.

Monday–Friday weekdays122,830
Weeks and days24,566w 0d
Calendar span470 years, 9 months, 24 days

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