Instead of using time zone converters*, or having to memorize what hour it is in select locations, this clock reveals the differences simply by rolling it.

    The World Clock shows the current time on a traditional-looking face, but the edge of the timepiece is engraved* with the times in 24 cities, covering 12 time zones.

    It will then revert* to the current time zone by rolling back into position, thanks to weights in the base.

    The clock, designed by South Korean-based firm 11+, costs US$49.99 in the United States.

    To begin, users program the time in their current zone using the mechanism inside the device. To see the time in another location, the clock is rolled so the desired place name is at the top of the device. The number on the clock that appears directly below the place name reveals the hour, while the hand shows the minutes.

    The World Clock doesn’t account for regional time changes, such as daylight saving time*.(SD-Agencies)