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January 4, 2022 was a Tuesday — that’s 1,669 days ago. Below you can see exactly how to work the weekday out in your head with the Doomsday algorithm, along with a few other facts about the date.
Same month, one different day. You already know January 3 is a doomsday — count from there.
January 15, 2022
The Doomsday algorithm is six short steps. Most people get to a reliable answer in under 30 seconds after an afternoon of practice.