Complete the information about time zones with the words and phrases in the box. then listen and check. add, daylight, direction, forward, thirty, twenty-four. time zones. there are time most of the time zones are one hour divisions, but a few are or forty-five minutes. some higher latitude countries use saving time. in the autumn, the clocks are put back, and in the spring the clocks are put . to calculate the time in a different time zone, you have to add or subtract hours depending on the you are going west, you need to subtract them.