Big Ben
accountant
amanuensis
annalist
archivist
bookkeeper
calendar maker
calendarist
chronicler
chronographer
chronologer
chronologist
chronometer
clerk
clock
clock movement
clockmaker
clockworks
diarist
documentalist
engraver
filing clerk
horologe
horologist
horologium
librarian
marker
notary
notary public
prothonotary
record clerk
recorder
recordist
register
registrar
scorekeeper
scorer
scribe
scrivener
secretary
stenographer
stonecutter
ticker
timepiece
timer
turnip
watch
official
arbitrator
barometer
depositary
exobiologist
favor
linesman
monitress
notbe
planetologist
reconciler
referee
sextuple
switchman
tist
umpire