Friday the 13th Finder

This tells you the months that have the 13th on a Friday. You can enter a year range and get a chart of the months having a Friday the 13th in each year.

Input the first year of the range (4 digits). Then click somewhere outside the box.

You entered:

Input the last year of the range (4 digits). Then click somewhere outside the box.

You entered:

Click here to produce a table showing the day of the week for each year.