ME310G1/ME910G1/ML865G1 AT Commands Reference Guide
80617ST10991A Rev. 11 Page 499 of 1039 2021-09-23
3.8.11. AT+CSTF - Setting Time Format
Set command sets the time format of the time information presented to the user, which
is specified by use of the <mode> parameter.
AT+CSTF=[<mode>]
Parameter:
<mode> affects the time format on the
phone display and doesn't affect the time
format of the AT command serial interface,
so it not actually not used
[hh]:[mm] (24 hour clock)
Entering AT+CSTF= returns OK but has no effect.
AT+CSTF?
Read command reports the currently selected <mode> in the format:
+CSTF: <mode>.