AT Commands Reference Manual - wireless netcontrol GmbH

Phonebook and Clock
System Date and Time Access Commands
+CCLK, Read/Set System Date and Time
This command reads and sets the H24 current date, time and time zone.
Command Type Syntax Response/Action Remarks
Set +CCLK= OK
or:
+CME ERROR:
Read +CCLK? +CCLK:
OK
or:
+CME ERROR:
The Set command sets the date, time
and time zone of the system clock.
The Read command returns the current
date, time and time zone setting.
By default, will represent the
network updated time.
If the user has used the Set command
once, then will represent the
Set command setting.
Note: If network operator does not
support System Clock Update
Message, the initial date, time
and time zone, displayed by
CCLK Read Command could
be invalid (user's responsibility
to set date, time and time zone
by CCLK Set Command).
Note: See Execute Command for
how-to enable back network
update time.
Test +CCLK=? OK
or:
+CME ERROR:
Execute +CCLK OK
or:
+CME ERROR:
The Test command returns valid
parameters for the +CCLK Set
command.
The Execute command causes system
clock to be overridden by network
System Clock value immediately.
Note: CCLK Read command will
represent the network update
time after CCLK Execute
command. This value will be
represented after power-cycle
as well.
3-72 H24 - AT Commands Reference Manual April 15, 2010