timekeeper (n.)

• accountant
• amanuensis
• annalist
• archivist
• bookkeeper
• chronicler
• chronometer
• clerk
• clock
• clockmaker
• diarist
• engraver
• horologe
• horologist
• librarian
• marker
• notary
• recorder
• register
• registrar
• scorekeeper
• scorer
• scribe
• scrivener
• secretary
• stenographer
• stonecutter
• ticker
• timepiece
• timer
• turnip
• watch
• watchmaker