1A book in which a record is kept of the times or durations of particular events; especially a book recording the time worked by employees at a particular workplace.
2A book containing a timetable or timetables. Now rare.
Origin
Late 18th century; earliest use found in Proceedings of the Old Bailey. From time + book.
Definition of time book in US English:
time book
nounˈtʌɪm bʊk
1A book in which a record is kept of the times or durations of particular events; especially a book recording the time worked by employees at a particular workplace.
2A book containing a timetable or timetables. Now rare.
Origin
Late 18th century; earliest use found in Proceedings of the Old Bailey. From time + book.