Projection timeabout 5-10 seconds. Time Projection - The clock can project the time virtually anywhere with walls and ceilings. You can turn on or off the projection when needed, very convenient.^Time and Temperature Display - The LED projector alarm clock has the current time and circumstance temperature display functions, and with voice-talking function, this function can tell you the time, so you don't have to check the time by yourself, very much intelligent.^Two time modes available - Time can be displayed in 12 or 24 hour format and temperature can be displayed in Celsius or driving. Otherwise, it with 10 minutes snooze function, you can have a 10 minutes snooze to get that extra rest time.^The projection clock has 5 kinds of music alarm, built-in speaker, you can adjust the volume to an appropriate size.^It can be used anywhere, such as study rooms, bed rooms, desks and so on.^