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

187,859 days

From Tuesday, May 7, 1512 to Tuesday, September 8, 2026.

Monday–Friday weekdays134,185
Weeks and days26,837w 0d
Calendar span514 years, 4 months, 1 day

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