there are a couple of possibilities
the closes to your design requiremnt is to use a timer control. You will need to decide what interval you require to update the time, and place some code in the timer event function to refresh you control containg the time.
another possibility is to place some code in the forms on current event (occurs every time the user navigates between records)
Out of curiousity is there good clear design requirement to display the time?
can u update just one individual control? I only thought you could refresh whole forms?
The client wants a clock apparently so they can syncronise their daily record maintenace. So i presume so they can look at the time, see that its 4pm and check any orders than have been completed through the day that can be sent to archival