This is one of the proposals I submitted to the first Named Data Networking hackathon.
Certain cheap devices, most notably the Raspberry Pi, comes without a hardware Real Time Clock (RTC), and relies on Network Time Protocol (NTP) to setup its clock during system boot. NTP is an IP based protocol which would not work in a pure NDN network. It's necessary to define an NDN based protocol for clock setup.
protocol design and demo system