It is disseminated by various means, including time pips broadcast on Radio New Zealand, and Network Time Protocol.
Because of how time is moved through networks over the Network Time Protocol time sources should generallty only be used which are local to the user no matter how good the network performance is.
Time (magazine) | Time | Nine Network | Cartoon Network | Seven Network | Showtime (TV network) | Network Ten | Time Warner | television network | CTV Television Network | GMA Network | USA Network | The Sports Network | Food Network | Trinity Broadcasting Network | Transmission Control Protocol | Computer network | Time Warner Cable | NFL Network | Home Shopping Network | DuMont Television Network | Network Rail | network | File Transfer Protocol | Session Initiation Protocol | Global Television Network | American Forces Network | The Social Network | Greenwich Mean Time | Dish Network |
Keith Marzullo is the inventor of Marzullo's algorithm, which is part of the basis of the Network Time Protocol and the Windows Time Service.