How kind of you to reply. Thank you.
I am actually in search of integrating a hardware RTC solution into the Beaglebone. I tried your kind advise earlier with decent results. But since my application resides far out in the country with no reliable electrical mains, I thought of doing the HW RTC solution. There are times when there is electrical power available but not internet connection which at times is intermittent. This is a geophysical remote sensing scenario out of the reach of civilization
) We get internet access from a wireless link bridging a distance of +/- 12 miles and electrical power supply is solar with DC to AC inverters. There are instruments who rely on precision time around the NTP server. We can not afford a dedicated ready made GPS, but if GPS integration with the Beaglebone is possible (again using Adafrut's components) that will be even better.
Any thoughts? In the mean time let the experimentation continue. I know something will jump out of the magicians hat.