Recently I read that July 22 (22/7) and March 14 (3.14, American-style of writing a day) are 'pi-lovers' day. Interesting! As a sequel to my recent post on days and mathematical rarities,and the old one on numbing numbers, some other unique days:
October 1 & January 10: (01.10 & 10.01) Shortest palindrome.
December 21: (21.12 or 12.21). Only non-zero palindrome
July 24: 24/7. Workaholics' day
01:12:35 AM on 8/13/21 (Aug 13, 2021, again American-style) For Fibonacci fans.
01/12: (Either Dec 1 or Jan 12), an off-shoot of the date above.
Aug 24: Can also be written as Au 24 (not A 24, as April also starts with 'A'). Day for 'ultra-pure' (like unadulterated gold) people. [Au is the symbol for Gold]
If you find any other day uniquely interesting (not like september 2011, the whole month being 9/11), pl do comment.