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

172,190 days

From Friday, April 1, 1555 to Tuesday, September 8, 2026.

Monday–Friday weekdays122,992
Weeks and days24,598w 4d
Calendar span471 years, 5 months, 7 days

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