英和和英

to give time to―devote time to―anything

to time with a stopwatch or an electric timing device

to waste time

waste time

to change the hours

to fill the hour―stop the gap

to be punctual to the minute

to arrange the hours

to spend or pass one's time

by the hour

Time passes

to waste time

Time between...

for an intervening time

Economize time to do it

of time, to pass

to spare time （from something to do something）

You should make the most of your time―economize time.

to make the most of one's time

a concept of time

a worrying time

The hours clash with each other.

Time marches on

The hours clash with each other.

across time

one's class hours

to move up the hours

to while away the time―kill time

a stop-gap

time hung heavy on their hands