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kill-time

Time of day (now mainly preserved in negation, i.e. what someone won’t give you if he doesn’t like you) was a popular 17c. salutation (e.g. “Good time of day vnto your Royall Grace,” “Richard III,” I.iii.18). Times as the name of a newspaper dates from 1788. Time warp first attested 1954; time capsule first recorded 1938, in reference to New York World’s Fair; time-traveling in the science fiction sense first recorded 1895 in H.G. Wells’ “The Time Machine.” To do time “serve a prison sentence” is from 1865. Time frame is attested by 1964; time line (also timeline) by 1890; time-limit is from 1880. About time, ironically for “long past due time,” is recorded from 1920. Behind the times “old-fashioned” is recorded from 1846, first attested in Dickens.

Old English getimian “to happen, befall,” from time (n.). Meaning “to appoint a time” (of an action, etc.) is attested from c.1300; sense of “to record the time of” (a race, event, etc.) is first attested 1660s. Related: Timed; timing.

A duration or relation of events expressed in terms of past, present, and future, and measured in units such as minutes, hours, days, months, or years.
A certain period during which something is done.

A continuous, measurable quantity in which events occur in a sequence proceeding from the past through the present to the future. See Note at space-time.
1. An interval separating two points of this quantity; a duration.
2. A system or reference frame in which such intervals are measured or such quantities are calculated.

In addition to the idioms beginning with time

time after time
time and a half
time and tide wait for no man
time bomb
time flies
time hangs heavy
time immemorial
time is money
time is ripe
time is up
time of day
time off
time of one’s life
time on one’s hands
time out
time out of mind
time warp
time was
time will tell

also see:

about time
against the clock (time)
ahead of one’s time
ahead of time
all the time
at all times
at one time
at one time or another
at the same time
at this point (in time)
at times
beat time
behind in (time)
behind the times
bide one’s time
big time
buy time
call one’s (time one’s) own
chow down (time)
crunch time
do time
every time one turns around
for the moment (time being)
from time to time
good-time Charlie
hard time
have a good time
high time
in between times
in due course (of time)
in good time
in no time
in the fullness of time
in the nick of time
in time
keep time
keep up (with the times)
kill time
less than (no time)
long time no see
lose time
make good time
make time
make up for lost time
many is the (time)
mark time
not give someone the time of day
no time for
no time like the present
of one’s life, time
on borrowed time
once upon a time
one by one (at a time)
on one’s own time
on time
pass the time
play for time
point in time
pressed for time
serve time
show someone a good time
small time
stitch in time
take one’s time
take up space (time)
tell time
whale of a time