normally ， if your module has not registered network ， the modem time ( AT+cclk?) will begin from “80/01/06,00:00”
if your module has registered network , the module will sync the NITZ time from cell network .
I have test it , BG600GL work fine in my side , could you send the email to stephen.li@ quectel.com , give us more detail ,What are the details of the difference between your first and second test case steps
Facing same issue (on BG95), we are on a battery operating system:
“Wake-up, send data, sleep” use case, so we can’t afford to lose time during wake-up.
I used to wake-up, wait for network registration with AT+CGREG and then get time with AT+CCLK? and everything was good but now we have device in Colombia and we are getting 2080 date ;(
Any delay recommended between network registration and AT+CCLK? command ?