How long is the day to night cycle in Fez

fez

In Fez I was playing with the giant telescope trying to solve the puzzle, but suddenly it turned to day and I can't see anything useful. How long do I have to wait for it to turn to night?

Best Answer

The entire day/night cycle seems to be around 5'30", or 330 seconds. The red blinking stars will be visible for around 1'45", or 105 seconds.