EC200A is wrong in real time

IoT Modules LTE Standard Module
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1

Hello all,

I am using module EC200A and use AT+CCLK? to read time from module 4g and update to my device.
But I found that the real time compared to reading time from EC200A is much different (from 3 to 4 minutes). tell me is there another way to solve this problem?

Thanks so much.

2

Have you got NITZ enabled? This allows modems to fetch date-time and timezone info from the cellular network.

AT+CTZU=1 enables NITZ.

3

Hi Snowgum,
Not yet.
Thank you, I will try it.