[ DateTime ] The format parameter being a format string limits the use of creating constants

[lexidor]

I'd like to be able to create a constant with a particular format with a useful name.
TIME_FMT_MYSQL = ...; TIME_FMT_DISPLAY_INTERNATIONAL = ...; TIME_FMT_CLOCK(12|24)H = ...
This is not possible with the current API design.

Alternatives:
I could declare datetime_fmt(DateTime, MyOwnEnum): string; in my own code. Internally switch over the enum and pass the string literal format string.
Clunky, but it works.