Haste makes waste and nowhere could that be truer then a one hour date with a lady. I appreciate the fact that many providers are NOT clock watchers because I AM! There have been occasions when I hit it off so well talking to my date that I burn more than half my time chatting.

I respect the ladies time and I know she respects my interests. So I find that keeping an eye on a clock helps. I won’t divulge my style but I have found that if I move with a well timed “theme” things go very well. I’ve only once looked at the clock and panicked, “ Oh crap! I’ve got twenty minutes to go and I’m not even sitting beside her!” My advice is that you have a “ move” planned. One that is NOT offensive but does communicate.

MOST IMPORTANTLY, know when your time is up.
Be a good guest, after all you are in the presence of a lady, and politely excuse yourself from her side. If the two of you agree to a longer evening that's the time to discuss matters.

Note that these techniques work well with Civilians too.

I never watch the clock as my ultimate goal is to make sure the client leaves satiated and satisfied.  My perspective on this is it is a allot more costly to have a bad review or bad referral than it is to give up some free time  The only time I break this policy is when I have sessions booked afterwards or the client is on a time limit or I feel a client is trying to milk the session for as long as they can (ie mention my reviews that state I don't watch the clock or allow tips or negotiations for fees after sessio starts).  Fortunately it doesn't happen very often