Day of the Week Calculator

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Unravel the mysteries of the calendar with our Day of the Week Calculator. Whether you're planning ahead or looking back, this tool tells you the day of the week for any given date and also reveals its position in the year. It's great for those who like to keep their schedules tight (or for trivia buffs who love to know exactly when things happened).

Weekday Calculator

How to use the day of week calculator

Input any date to discover its corresponding weekday and its sequence in the year:

  • Date to Find Day of Week: Enter the date you're curious about.

Click Calculate Day of Week from Date. Here’s what you’ll get:

  • Day of the Week: The tool will display the day of the week (e.g., Monday, Tuesday) and the Day number of the year for your specified date.
Screenshot of the day of the week calculator
Look at the tool calculating weekdays from your input date!

Does the calculator account for leap years?

Absolutely! Our calculator adjusts for leap years, ensuring accuracy whether you're entering a date from the past, present, or future.

Practical uses for the day of week calculator

I like to think the weekday calculator isn't just a fun party trick; it has practical applications in various aspects of daily life and professional planning. Here are some potential ways:

  • Event Planning: It's perfect for setting dates for events, helping you pick the right day of the week to maximize attendance.
  • Project Deadlines: Helps in planning project timelines by understanding which day of the week a particular date falls on, aiding in efficient scheduling. Stop setting those work deadlines on weekends, am I right?
  • Historical Research: Useful for historians or researchers trying to determine the day of the week for historical events without manually flipping through a calendar. (If they have one that goes back that far...)
  • Education and Teaching: A handy tool for teachers planning their syllabus, or for students organizing their study schedules around specific dates.
  • Personal Organization: When you're scheduling appointments (or vacations), knowing the weekday can help in making informed decisions.
  • Legal and Business Documentation: Often, legal documents and business contracts reference specific days of the week; this tool ensures accuracy when reviewing or drafting such documents. But, disclaimer, check twice – this tool is for research and educational purposes only!

Whether you're a professional needing precise date management, or just curious about the days of the week for upcoming dates, the weekday calculator is here to simplify your planning and research.

Explore more of our calculators designed to help you with time management and historical dates:

Can't find what you're looking for? Check out all of our calculators here.



PK started DQYDJ in 2009 to research and discuss finance and investing and help answer financial questions. He's expanded DQYDJ to build visualizations, calculators, and interactive tools.

PK lives in New Hampshire with his wife, kids, and dog.

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