Voicemail timestamp off by 5 hours

[comtech]

Voicemail Timezone Configuration

I added those lines in the vm_general.inc [code:1] [zonemessages] central=America/Chicago|‘vm-received’ Q ‘digits/at’ R pacific=America/Tijuana|‘vm-received’ Q ‘digits/at’ R mountain=America/Denver|‘vm-received’ Q ‘digits/at’ R [/code:1] and it has fixed it, but now it is giving the time in military format. I would like it to use am or pm. How could I get it to say the time differently?