Day of the week
Find the weekday of a Gregorian date and its numbered day within the year.
Formula
Weekday follows the Gregorian calendar; day of year starts at 1.
Date = 2026-10-12
How to use
- Choose a calendar date.
- Read its weekday.
- Check the day number within that year.
Examples
- February 29, 2024 was Thursday and day 60 of the year.
Frequently asked questions
Which calendar is used?
The Gregorian calendar for years 1900–2100.
What is the day of year?
January 1 is day 1; December 31 is 365 or 366.
Does a time zone change the answer?
No. Enter the local calendar date you want to inspect.
Sources
Updated: