Have you ever wondered what day of the week you were born on? Our Birthday Day Calculator helps you find the answer instantly. Whether you are a "Monday child" or born on a lazy Sunday, this tool reveals the specific weekday behind any date in the Gregorian calendar.

It is a fun way to learn more about yourself or your friends. For example, you can check if your next birthday falls on a weekend so you can plan a party, or discover that your favorite celebrity was born on a Wednesday.

How to Determine the Day of the Week

Calculating the day of the week for dates in the distant past or future can be tricky with a standard calendar. Our Online Converter does the math for you. Simply enter the day, month, and year, and the tool will detect the correct day.

This converter is not limited to birthdays. You can use it for historical research to see what day a major event occurred, or for planning future events like weddings and vacations. Just enter the date, and let the calculator give you the details.