Should be able to go to menu, system settings, "set the system date and time". Follow the prompts or just press enter to accept the value. When you get to entering the time, enter as 4 digits then right or left arrow for AM or PM. Then enter. I believe that only US English and Canadian French do not support the 24 hour clock format. Check the firmware version on both and update if not at 5.03..unless you are happy with the way it works. Bob -----Original Message----- From: ptr1-users-bounce@xxxxxxxxxxxxx [mailto:ptr1-users-bounce@xxxxxxxxxxxxx] On Behalf Of John Sent: Monday, May 14, 2012 1:37 PM To: ptr1-users@xxxxxxxxxxxxx Subject: Re: RE: suggestion for plextalk pocket developers - being able to select between 24 hour clock and AM and PM I have two PTP1's and one of them does NOT let me choose A.M. or P.M. The other one does. John --------------------------------------------------------------------------- To leave the list at any time, please write to <ptr1-users-request@xxxxxxxxxxxxx> with unsubscribe ptr1-users in the subject or the body. The list home page is at <//www.freelists.org/list/ptr1-users/>. --------------------------------------------------------------------------- To leave the list at any time, please write to <ptr1-users-request@xxxxxxxxxxxxx> with unsubscribe ptr1-users in the subject or the body. The list home page is at <//www.freelists.org/list/ptr1-users/>.