Today is Double 12s day
Not so rare event actually, 12/12 is actually happened every year, but there is more unique 12/12 happen in some year. (Actually happened every 100 years)
previous unique double (multiple) 12s day happened in 2012/12/12 12:12, next unique double (multiple) 12s day happened in 2112/12/12 12:12.
Double 12s are more unique if happened in 12:12 in UTC+12 or UTC-12 time zone, there also palindromic (somewhat) date happen in this date (more common, though) (20)17/12/12 at 12:17 (1712121217)
In China this day also called double 12s day, its second major online sale in China (cyber monday-ish day), this kind of online sale also happened in Indonesian online store too!
Although no significant major events happen today, except there is only 13 days before Christmas, less than 20 days before new year, and also less than 10 days before December Solstice!
Photos: (Phone screenshots of)
1. 'Multiple' Double 12s
12/12 at 12:12 (12121212)
2. Palindromic Date
(20)17/12/12 at 12:17 (1712121217)
2017/12/12 (Day 346 of 365, MMXVII) (D-13, D-19)
VLS2000/08/25 (Day 231 of 384, MM)
Autumn/Spring Day 82 (D-9)