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

176,889 days

From Wednesday, May 20, 1542 to Tuesday, September 8, 2026.

Monday–Friday weekdays126,349
Weeks and days25,269w 6d
Calendar span484 years, 3 months, 19 days

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