At first glance this looks like a normal clock that is missing a minute hand, but it has been designed to make it easy to adjust for daylight savings time. To set the clock an hour forwards you simply tilt it to the right and to set it back an hour you tilt it to the left, simple as that. It is a re-make of the design I found here
The clock has markings for hours, quarter hours and half hours so as you can see in the picture the time is about 8:25.
The reason the minute hand is omitted is because when the clock is adjusted as well as changing the hours by one hour it would also change the minutes by five minutes. I left the second hand on because although it will also be changed by 5 seconds when the clock is adjusted this is such an insignificant amount of time that it really makes little difference.