Proposal: %T Prompt parameter for psql for current time (like Oracle has)

Proposal: Simply add the %T (PROMPT variable) to output the current time
(HH24:MI:SS) into the prompt. This has been in sqlplus since I can
remember, and I find it really useful when I forgot to time something, or
to review for Time spent on a problem, or for how old my session is...

I am recommending no formatting options, just keep it simple. No, I don't
care about adding the date. If I don't know the date of some line in my
history, it's already a problem! (And date would logically be some other
variable)

Yes, I've found ways around it using the shell backquote. This is hacky,
and it's also really ugly in windows. I also found it impossible to share
my plpgsqlrc file because between linux and windows.

This would be current time on the local machine. Keeping it simple.

It feels like a small change. The simplest test would be to capture the
prompt, select sleep(1.1); and make sure the prompt change. This code
should be trivially stable.

If it seems useful, I believe I can work with others to get it implemented,
and the documentation changed, and a patch generated. (I need to develop
these skills)

What does the community say? Is there support for this?

Regards, Kirk