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| | What is the day of the week? |
 | | In ordinary years, 2/0 (the last day of January) also falls on Doomsday, as does 1/3; in Leap Years, 2/1 and 1/4 fall on Doomsday. |
 | | In 1997, which is not a leap year, therefore, the following dates fall on Doomsday (Friday): 1/3, 2/0 (1/31), 3/0 (2/28), 4/4, 5/9, 6/6, 7/11, 8/8, 9/5, 10/10, 11/7 and 12/12. |
 | | The next and hardest part of the trick (because it requires a small amount of calculation) is to determine Doomsday for the year in question. |
| quasar.as.utexas.edu /BillInfo/doomsday.html (1295 words) |
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