Light passes through the guider and falls onto the film in your camera or onto the CCD chip. However, the light of a guide star (from the edge of the telescopeâs circular field, and not from the rectangular area in the center that you are photographing) is diverted to the crosshairs of an illuminated reticle eyepiece by a small off-axis prism within the guider body.
The time difference is 8 hours. Also, there is the International Date Line in the Pacific Ocean, between Arizona and Japan. Therefor, if it is 12:00 PM (noon), on Monday in Phoenix, Arizona, it is 4:00 AM Tuesday in Tokyo, Japan. Japan is 16 hrs. ahead of Arizona.
The flight time from New York to Tokyo is about 13 to 14 hours. Because of the wind, this route takes longer. With Japan 14 hours ahead of NY, and a flight time of 14 hours, a traveller would arrive in Japan at a local time 28 hours after departure time (1 day and 4 hours).