Noun
English Wikipedia has an article on:time signalWikipedia
time signal (plural time signals)
a visible, audible, mechanical, or electronic signal used as a reference to determine the time of day
time-signal (plural time-signals)
Alternative form of time signal
time-signal
All chronometers and watches should be checked regularly with a radio time signal. Source: Internet
All the more, the hourly time signal helps you maintain a precise routine. Source: Internet
Bass guitar time signal of open string A note (55 Hz). Source: Internet
Fourier transform of bass guitar time signal of open string A note (55 Hz), computed with https://sourceforge. Source: Internet
The special features of the Digital G-Shock sports watch include a daily alarm, hourly time signal, countdown timer, 1/100 second stopwatch, and an electro-luminescent backlight with afterglow. Source: Internet
However, with accurate clocks and modern astronomical equipment (and the telegraph or similar means to transfer a time signal in a split-second), this issue is much less relevant. Source: Internet