डुम्स डे (Doomsday) :प्रलयका दिनहरु

डुम्स डे (Doomsday) :प्रलयका  दिनहरु

The dates 4/4, 6/6, 8/8, 10/10, and 12/12 all fall on the same day of the week every year (This year, they all fall on a Saturday). They're called Doomsdays.

Doomsday:

The Doomsday rule is an algorithm of determination of the day of the week for a given date. It provides a perpetual calendar because the Gregorian calendar moves in cycles of 400 years. The algorithm for mental calculation was devised by John Conway in 1973,[1][2] drawing inspiration from Lewis Carroll's perpetual calendar algorithm.[3][4][5] It takes advantage of each year having a certain day of the week upon which certain easy-to-remember dates, called the doomsdays, fall; for example, 4/4, 6/6, 8/8, 10/10, 12/12, and the last day of February all occur on the same day of the week in any year.