Day of Week Calculator
Enter any date — a birthday, a historical event, a future appointment — and instantly see its day of the week, day of the year and how far it is from today.
Pick a date to see its weekday.
How to use
- Pick or type any past or future date.
- Read the weekday, plus the day number in its year and the distance from today.
Weekdays are calculated from the proleptic Gregorian calendar, which is exact for all modern dates and standard for historical lookups.