英和和英

a length of time

the duration of the shock

the term of validity

to time with a stopwatch or an electric timing device

grace period

survey execution period

a period of time

duration as an extension

chronometry

Interval of times

an amount of time

the latent period

punctuality

to comment on current events

overtime

the term of validity―the available period

term of study―the school course

an economy drive

periodicity

a unit for measuring time periods

term of service

the term of public service

the term of validity―the available period

temporal dimensions

hour-arrangement

to spare time （from something to do something）

a measured amount of time

cut short in duration

business hours―office hours

elapsed time