It can be a mirror date only vertically, not horizontally. Horizontally, the mirror date of 9116 will be 6119.
There are many special kinds of dates e.g. -
1. The same number dates like - 7.7.77 or 04.04.04 or 12.12.12.
2. Double dates which consist of twice the same numbers e.g. 10.11.01, 11.01.10, 12.01.20 or 20.12.01.
3. Square root dates like - 01.01.01, 02.02.04 or 03.03.09.
4. Palindrome dates like 11.02.2011 or 21.02.20.2012.
There are a few more such interesting observations. However, in all such cases, the format of dates to be used is very important. In India, generally, we use the DD/MM/YYYY format.
The game will change in cases of use of other formats like MM/DD/YYYY or DD/MM/YY or such other different formats.
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