How to use - Perpetual calendar
To use this calendar, simply turn each cylinder on date of your choice and follow the line from the day of the month until the day of the week.
Leap years are underlined. For these years, choose the months of January and February underlined. Example on the photo:
November 13, 2008 is a Thursday.
This is the day when this DIYs project was published on this site and I can confirm that we are indeed a Thursday!
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