Specifications

AT Command Set Reference
Ver. 1.00
GSM1308AT001 Page 317 Ver. 1.00 – 10/29/2008
4.10.2. $RTCTIME Real Time Clock Time
(continued)
Notes This command is used to set the time for
the RTC. Currently all time is based on
24-Hour time format.
Examples:
at$rtctime?
$RTCTIME: 01, 03, 10, 13, 14, 03, 2
OK
at$rtctime=?
$RTCTIME: (0..6), (0..99), (1..12), (1..31), (0..23), (0..59), (0..59)
at$rtctime=1,3,10,13,14,37,50
OK