1230 in military time

1230 is 12:30 PM

That's in the afternoon. It's said “twelve thirty”.

Questions

What is 1230 in regular time?

1230 in military time is 12:30 PM in standard 12-hour time.

How do you say 1230 in military time?

“Twelve thirty.”

How do I work out 1230 myself?

The 12 hour is noon: keep 12 and use PM.