Orange Pi Zero: Wrong Date and Time even given Internet Access

I am using Orange Pi Zero and running Armbian Stretch OS 5.59 on it. Problem is, it is giving wrong date and time even in the presence of the Internet. I have tried restarting "ntp" service but to no avail. I have also tried rebooting, but the same annoying result. I have already set the right timezone which is PKT, but it shouldn't matter. So what do I need to do or change? Thank you.