Square Root Day

People like to make up holidays, however, not all holidays are equally sticky. In my lifetime, Superbowl Sunday has emerged, along with a few others promoted by greeting card companies such as Secretary Day (or is it Assistants Day?).

Today is square root day because if you multiply the digit(s) representing the month by the same digit(s) representing the day, you get either the last two or three digits of the year. In other words, the month/day digit(s) is the square root of the year digits. Specifically, these are the dates of square root day.

1/1/01
2/2/04
3/3/09
4/4/16
5/5/25
6/6/36
7/7/49
8/8/64
9/9/81
10/10/2100
11/11/2121
12/12/2144

The first nine occur once a century and the last three occur once a millennium. Wikipedia says that square root day was first celebrated in 1981, no doubt only by the founder.

In the spirit of square root day, I am declaring the "ascending moment" and the "descending moment", which likely have already been declared under different names. These moments occur when the date plus time or time plus date are the ascending digits 1 to 9 or the descending digits 9 to 1, specifically

ascending moment 1:23:45 6/7/89
descending moment 9/8/76 5:43:21

Other moments involve the zero digit (e.g. 12:34:56 7/8/90 and 01:23:54 6/7/89). Am still working out the details on how to celebrate these moments but am fairly certain it will involve the phrase "woo hoo!"