Yealink SIP-T2xP Auto Provisioning Manual page 173

Parameter
local_time.start_time =
local_time.end_time =
local_time.dhcp_time =
Permitted Values
1-DST By Week
The default value is 0.
It configures the start time of the DST.
Value formats are:
Month/Day/Hour (for By Date)

Time
Month/ Day of Week/ Day of Week Last

in Month/ Hour of Day (for By Week)
The default value is 1/1/0.
It configures the end time of the DST.
Value formats are:
Month/Day/Hour (for By Date)

Time
Month/ Day of Week/ Day of Week Last

in Month/ Hour of Day (for By Week)
The default value is 12/31/23.
It enables or disables the phone to update
time with the offset time obtained from the
DHCP server.
0 or 1
It is only available to offset from GMT 0.
0-Disabled
Descriptions
For DST By Date:
Settings->Time & Date->Start Date
For DST By Week:
Settings->Time & Date->DST Start
Month/DST Start Day of Week/DST
Start Day of Week Last in Month/ Start
Hour of Day
For DST By Date:
Settings->Time & Date-> End Date
For DST By Week:
Settings ->Time & Date->DST Stop
Month/DST Stop Day of Week/DST Stop
Day of Week Last in Month/Stop Hour
of Day
Settings->Time & Date->DHCP Time
Appendix
Web Setting Path
163