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

187,881 days

From Monday, April 15, 1512 to Tuesday, September 8, 2026.

Monday–Friday weekdays134,201
Weeks and days26,840w 1d
Calendar span514 years, 4 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.