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

179,175 days

From Saturday, February 15, 1536 to Tuesday, September 8, 2026.

Monday–Friday weekdays127,982
Weeks and days25,596w 3d
Calendar span490 years, 6 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.