Day of the Week Calculator

Find out what day of the week any date falls on, plus interesting facts about that date

Date Selection

Select any date to find out what day of the week it was or will be

How It Works

Day Calculation

Uses JavaScript's Date object which implements the Gregorian calendar system. Days are numbered 0-6 where Sunday = 0 and Saturday = 6.

Historical Accuracy

Accurate for dates after October 15, 1582 (Gregorian calendar adoption). Earlier dates may not match historical records due to calendar system changes.

Additional Information

Includes day of year, week number, zodiac sign, season information, and leap year detection for comprehensive date analysis.

Use Cases

Perfect for historical research, event planning, birthday calculations, scheduling, and satisfying general curiosity about dates.