EG25-G: AT+QLTS : Network time response is NULL

hello,
Currently i am working on quectel EG25-G module , i have made this confiq
AT+CTZU=3
OK
AT+CTZU?
+CTZU: 3
OK
AT+QLTS=2
+QLTS:""

if the time has not been synchronized through network we will get this NULL response,but i have made PDP context ID active still i could see any time response
AT+QHTTPCFG=“contextid”,1
OK
AT+QHTTPCFG=“responseheader”,1
OK
AT+QIACT? //Query the state of context.
OK
AT+QICSGP=1,1,“airtelgprs.com”,"","" ,1
OK
AT+QIACT=1 //Activate context 1.
OK
AT+QIACT? //Query the state of context.
+QIACT: 1,1,1,“100.74.126.139”
OK

AT+QSPN
+QSPN: “airtel”,“airtel”,“airtel”,0,“40445”

i need to read the network time any help will be appreciated thank you in advance.

Dear Denial,
Thanks for your inquiry in Quectel forum.
About your issues, please refer to the following command to check it.
ATI
AT+CEREG?
AT+COPS?
AT+CSQ
AT+QLTS
If it still cannot return the synchronized time, please change another operator’s SIM card to have a try. Thanks!

Thank you for your reply.