Today Cisco Phone Time Offset by 1 hour

Hi,

My setup was running from last 2 months & today i see all cisco phones time offset by 1 hour. i guess this is some thing to do with day-light stuff.

can any one suggest what to do to fix this?

my asterisk server time shows perfect…ntp is working fine. below are my settings on SIPDefault.cnf

Time Server

time_format_24hr: 0
sntp_server: 10.10.10.100
sntp_mode: directedbroadcast
time_zone: EST

voip-info.org/wiki/view/Cisc … ht+Savings

thanks everyone…