Phone devices are not changing the time per daylight savings time

Our Mitel 6940 phones have not switched over to daylight savings time.  It worked fine in the fall but not this time.  I do not want to go into each device to change the time.  Is there a provisioning command to do this?  The time zone is assigned to each user and I do not see an option to change it for devices.  I have added in an NTP server and a secondary one.  I did a resync account and the provisioning date changed but the phone did not reboot.  I wanted to open a ticket to find out why it failed but I also cannot find where I can open a ticket.  It only shows a virtual agent.