For those who have many friends overseas
A clock that tells the time around the world
Masafumi Ishikawa .design's world clock

This clock, designed by Masafumi Ishikawa Design, a design studio in Kuramae, Tokyo, is an item that allows you to intuitively know the time in major cities around the world. The names of each city are printed on the sides of the dodecagon, and when you turn the watch to set the time to the place you want to know, the hour hand will automatically point to the correct position in that city's time zone. This is convenient for when you want to contact a friend in a different country and want to know the time.