英和和英

until when

when it's over

like when

on some occasions―in some cases―sometimes

after a time

at a time

when the time is right

When?

once upon a time

once upon a time

after a while

when it is over,

at a given time

When you have time

on one occasion

at a certain time

at that time

at that time

at that moment

until that time

that time

a certain period of time

at any time

at any time

four o'clocks

at odd moments

at times

It was...

at dusk―in the twilight―in the gathering twilight―in the gathering dusk

to conform to the times―swim with the stream