For the film, see Timecode (film). For the UK drum and bass DJ and founder of Moving Shadow records, aka Rob Playford, see Timecode (DJ). For records designed for use in virtual turntablism, see Vinyl Emulation Software. A time code is a sequence of numeric codes generated at regular intervals by a timing system. Time codes are used extensively for synchronization, and for logging material in recorded media. SOM is also a related term (in the broadcast industry) and stands for 'Start of Message' or 'Start of Media' also known as Time Code (TC) in. Similarly EOM stands for 'End of Message' or 'End of Media' also known as Time Code (TC) out.
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A code used for the transmission and identification of time signals. (188 ) Note: In telecommunications systems, the format of the time code must be specified.