Definition of timekeeping noun from the Oxford Advanced American Dictionary

 

timekeeping

 noun
noun
NAmE//ˈtaɪmˌkipɪŋ//
 
[uncountable]
 
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the activity of recording the time something takes In 1967 the rotation of the earth was abandoned as the basic source of timekeeping.
See the Oxford Advanced Learner's Dictionary entry: timekeeping