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

126,274 days

From Sunday, December 15, 1680 to Monday, September 7, 2026.

Monday–Friday weekdays90,196
Weeks and days18,039w 1d
Calendar span345 years, 8 months, 23 days

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