Hi all,
I’m running CUCM 14 with TimeZone version 2021c. Due to government regulations, daylight saving time is no longer observed since last year, and the correct time zone offset is now +3:30.
In version 2021c, daylight saving was still enabled, so the system was using +4:30.
I’ve recently installed timezone update 2023c, and now CUCM correctly shows +3:30. The show ntp status command also confirms the correct time.
However, SCCP phones are still showing +4:30, and the time on them has not changed.
The following command output also shows that Daylight Saving is disabled in CUCM, yet the phones seem unaffected.
admin:utils update dst
DST rules file already created for the current year.
admin:run sql select * from typetimezone where name ='Asia/Tehran'
enum name description moniker bias stddate stdbias dstdate dstbias abbreviation legacyname
==== =========== ================== ==================== ==== =================== ======= =================== ======= ============ ===========================
33 Asia/Tehran (GMT+03:30) Tehran TIMEZONE_ASIA_TEHRAN -210 0/0/0/0,00:00:00:00 0 0/0/0/0,00:00:00:00 0 IT Iran Standard/Daylight Time
Has anyone experienced this? Any ideas on how to force SCCP phones to update their time?
