GDT has minimized the creation of Basic Arithmetic Dates (BADs) primarily because they use 2-digit years. The Y2K problem taught us that 2-digit years should be avoided; therefore, BADs are bad. BADs are based upon 2-digit years at a time when we should be switching to using 5-digit years. Despite BADs being bad, today's date (14 July 2007), when written in MM/DD/YY format (7/14/07), is a BAD.

07/14/07: 7 + 7 = 14Seven days ago the date was

`07/07/07`

and it was a date that made lots of news. Today's date could be written as`7/7+7/07`

. Seven days from today will be the date`7/7+7+7/07`

and two weeks from today will be the date`7/7+7+7+7/07`

.Tomorrow and the day after that are both BADs. And although we skipped it, 7/7/07 was also a BAD.

07/15/07: (7 + 15) / 7 approximates Pi (3.14) 07/16/07: 7 + 7 = 16_{base-8}...or... 7^(sqrt(sqrt(16))) = 7 07/07/07: sqrt(7 * 7) = 7

**Creator:** Gerald D. Thurman
[gthurman@gmail.com]

**Created:** 14 July 2007

This work is licensed under a Creative Commons License.