Find Day of the Week Calculator for Past or Future Date

Day of the Week Calculator Sign

This calculator will instantly tell you whether the date you entered is a Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday.

Plus, if you enter a number of years, the results will include two charts: one showing which day of the week the entered date will fall on for each of those years, and one showing which years the date will fall on each day of the week (e.g., how often your birthday will fall on a Saturday).

Just select the month and day, enter the 4-digit year, click the find button, and voila!

Many Fun Uses!

Here are just a few of the many uses for this day of the week finder:

  • What day of the week was I born on?
  • What day will Christmas fall on this year?
  • What day will my birthday fall on this year?
  • What day will a loved one's birthday fall on this year?
  • What day will my 30th, 40th, 50th, etc. birthday fall on?
  • What day does our anniversary fall on?
Read more ...

Day of the Week Calculator

Calculate the day of the week for any past or future date.

Special Instructions

Learn More

Selected Data Record:

A Data Record is a set of calculator entries that are stored in your web browser's Local Storage. If a Data Record is currently selected in the "Data" tab, this line will list the name you gave to that data record. If no data record is selected, or you have no entries stored for this calculator, the line will display "None".

DataData recordData recordSelected data record: None
Date to find day of week for:


Select the month and day and enter the 4-digit year of the date you wish to find the day of the week for.

Optional number of years:

Optional number of years:

If you would like the result to display a chart showing the day of the week for a number of years after the entered date, enter the number of years you would like the chart to include. For example, if your next birthday is January 4, 2020, and you enter 30 on this line, the calculator will display a chart showing the day of the week January 4 will fall on for the next 30 years.

Day of wk:Day of week:Day of the week:Day of the week:

Day of the week:

This is the day of the week of the entered date.

If you would like to save the current entries to the secure online database, tap or click on the Data tab, select "New Data Record", give the data record a name, then tap or click the Save button. To save changes to previously saved entries, simply tap the Save button. Please select and "Clear" any data records you no longer need.

Help and Tools

Adjust Calculator Width:

Move the slider to left and right to adjust the calculator width. Note that the Help and Tools panel will be hidden when the calculator is too wide to fit both on the screen. Moving the slider to the left will bring the instructions and tools panel back into view.

Also note that some calculators will reformat to accommodate the screen size as you make the calculator wider or narrower. If the calculator is narrow, columns of entry rows will be converted to a vertical entry form, whereas a wider calculator will display columns of entry rows, and the entry fields will be smaller in size ... since they will not need to be "thumb friendly".

Show/Hide Popup Keypads:

Select Show or Hide to show or hide the popup keypad icons located next to numeric entry fields. These are generally only needed for mobile devices that don't have decimal points in their numeric keypads. So if you are on a desktop, you may find the calculator to be more user-friendly and less cluttered without them.

Stick/Unstick Tools:

Select Stick or Unstick to stick or unstick the help and tools panel. Selecting "Stick" will keep the panel in view while scrolling the calculator vertically. If you find that annoying, select "Unstick" to keep the panel in a stationary position.

If the tools panel becomes "Unstuck" on its own, try clicking "Unstick" and then "Stick" to re-stick the panel.