Comment Why not have devices get their time from GPS? (Score 4, Insightful) 166
The clocks are hyper-accurate, world accessible and the technology is sufficiently robust and mature to be considered essentially bulletproof. It relies on a broadcast technology that scales to any number of receivers you care to connect and doesn't get bogged down by additional loading. Best of all it's managed and maintained by the US Government - but it works correctly anyway.