It is handled in your SIPDefault.cnf file. I didn’t have to do anything to get the date/time showing other than specifying my PIAF IP to be the NTP server and choosing 12/24hr.
time_format_24hr: “0” <-- gets you am/pm, “1” is 24 hr.
Note there was a bug in the DST start & end for this 7940/7960 template. I submitted the fix which was accepted. The new PIAF 2.0.6.2.2 Purple from April still had the old template. Update was DST start in 2nd Sunday in March and end 1st Sunday in Nov, not on any explicit “stop_day”.
I subsequently found I had to alter the following:
#tos_media: “5” <-- Commented out
dscpForAudio: “184”
for my P0S3-8-12-00 firmware 7960 and 7940 setup. Use the Endpoint Configuration Manager --> Product Options / Configuration Editor to do this and then select the updated files when you’re editing a specific MAC address phone’s templates.