In message 1735851597.467769906.836649.recliner.ng-
, at 00:31:54 on Thu, 29 Oct
2015, Recliner remarked:
I don't think the gateline has its own clock. The system uses an accurate
clock, presumably synced to an Internet clock. It's noticeable that most
station clocks are accurate to the second these days, just like
radio-controlled watches.

Platform clocks were one of the first widely deployed public
'Rugby'-linked ones. If you don't count the "CEEFAX" clock which was
also linked to Rugby (and was designed by a friend of mine who worked in
BBC engineering).

http://www.aj-computing.co.uk/misc/clock/about/

This modern clock is "railway approved", and like most master clocks
deployed for such purposes the last 15+ years is linked to GPS rather
than 'Rugby':

https://www.wharton.co.uk/master_clo...-network-time-
server.htm
--
Roland Perry