Software :: Display CURRENT Time In Prompt?

After much too often wondering "hey, when did I actually start this time-consuming command?", I'm considering adding a timestamp to my bash prompt.My first try was simple: PS1="(A) $PS1" which gives a display like:(16:58) exscape ~ #

However, the problem with that approach is that it displays the time when the line was written, not when the command on it was executed. So, if I run "ls" at 16:58, and get a new prompt "(16:58) ..." and then run the next command 2 hours later, it'll look like this:(16:58) exscape ~ # new-commandI of course want the line to display the time when the command was actually run, not when the prompt appeared.