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

162,675 days

From Saturday, April 18, 1581 to Monday, September 7, 2026.

Monday–Friday weekdays116,196
Weeks and days23,239w 2d
Calendar span445 years, 4 months, 20 days

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