Not common but is usually done with a reason.
For me, my signature in blue along with a date of ddMTHyyyy
verifies it as a legitimate in-hand signature.
This is done for official government/business purposes where a “wet” signature is required for the authority.
It is highly probable that the signature from VP Biden in 2016 is the “real” Biden.
thanks...I get it.
Agree, not common.
But it’s MY preference.
Why? It seems far more logical to me. (I’m a mathematician.) When we write numbers, we put the digits that represent the smallest amount on the right, so to me it makes sense to do the same thing with a date.
Year (largest), Month (middle), Day (smallest)
If it’s something important and/or I’m worried that it could be misinterpreted, I’ll use all 4 digits for the year and/or write the month as a 3-letter abbreviation. I usually use all 4 digits for the year as a matter of course, just because.