Greenwich Time Signal Greenwich Time Signal The Greenwich Time Signal (GTS), popularly known as the pips, is a series of six short tones broadcast at one-second intervals by many BBC Radio stations. The pips were introduced in 1924 and have been generated by the BBC since 1990 to mark the precise start of each hour. Their utility in calibration is diminishing as digital broadcasting entails time lags. There are six pips (short beeps) in total, which occur on each of the 5 seconds leading up to the hour and on the hour itself. Each pip is a 1 kHz tone (about halfway between
Time signal of the hour along with its jingle. Bonneville International-owned news/talk station KSL (AM-FM) in Salt Lake City uses a "clang" that originates from the Nauvoo Bell on Temple Square in Salt Lake City which has been a staple on the station since the early 1960s. In Canada, the national English-language non-commercial CBC Radio One network has broadcast the daily National Research Council Time Signal since November 5, 1939; the simulcast occurs daily at 1pm Eastern Time. Its French-language counterpart, Radio-Canada, broadcasts a similar signal at noon. Vancouver radio station CKNW also broadcasts time signals, using a chime every half-hour. The