Not only is it confusing in general, it makes it look as if my birthday is February 10th when it's really October 2nd.
A form of DTG is used in the US military message-writing in and other communications (e.g., on maps showing troop movements) the format is DD HHMMZ MON YY. Although occasionally seen with spaces, it can also be written as a single string of characters.
Example 1: 09 1630Z JUL 11represents (Jul) 09 16:30 Jul 2011 (UTC).
Example 2: 13 0612Z MAR 20represents (Mar) 13 06:12, Mar 2020 (UTC).
At a glance in a brief space, a lot of information is conveyed in a way that can be easily taught, shared, and understood.
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