Convert NTP timestamp from NTP packet to System time and date format

[Sadia Bashir]

Hello everyone;

I want to write NTP client which sends and receives NTP packet to NTP
server and should read the value from one of the four offsets and convert
it to user readable local or GMT time format, I specifically want to know
which offsets should I read in order to get correct timestamp from the
packet.
Any suggestion or help will be appreciated.