shòu​shí

time service

授时 授時 shòu​shí
time service
the broadcasting of time signals, typically by a specialized agency via radio or network, to provide a standard time reference
to issue a calendar
(literary) to issue an official calendar, used historically by a ruler to announce the seasons and schedule for agriculture

Frequency

Written text
0.231 per million

Sources

Frequency data
BCC Corpus (BLCU)