I've got incorrect time from NTP server, always 4 days before the actual datetime. You can see from the logs below, I got 2nd April on 6th April.
Incorrect time from NTP server
[2021-04-06 18:07:24.841] Clock:Info: Synchronizing time with NTP server...
[2021-04-06 18:07:25.232] NBiot:info:NBiot_Cmd [0x2a]: Request[AT+QNTP=1,"
0.sg.pool.ntp.org"]
[2021-04-06 18:07:25.732] +QNTP: 0,"2021/04/02,10:07:28+32"
Correct time from NTP server
[2021-04-06 18:09:24.781] Clock:Info: Synchronizing time with NTP server...
[2021-04-06 18:09:25.172] NBiot:info:NBiot_Cmd [0x2a]: Request[AT+QNTP=1,"
0.sg.pool.ntp.org"]
[2021-04-06 18:09:25.711] +QNTP: 0,"2021/04/06,10:09:27+32"
Has anyone experienced it before?