1 hour.
Mountain Standard Time (UTC-7) is one hour later than Pacific Standard Time (UTC-8). Mountain Daylight Saving Time (UTC-6) is 1 hr. ahead of Pacific Daylight Saving Time (UTC-7). Mountain Standard Time and Pacific Daylight Saving Time are the same (UTC-7).
From the 2nd Sun. of Mar. to the 1st Sun. of Nov., there is no time difference between Tonopah and Tucson.5 AM Pacific Daylight Saving Time (UTC-7) = 5 AM Mountain Standard Time (UTC-7)From the 1st Sun. of Nov. to the 2nd Sun. of Mar., Tucson is one hour ahead of Tonopah.4 AM Pacific Standard Time (UTC-8) = 5 AM Mountain Standard Time (UTC-7)
Mountain Time is between Pacific and Central time.
Pacific
3 *Edit* The guy above me is a dumb Butt
Pacific time zone is the farthest West.
Pacific Standard (or Pacific Daylight) is the farthest west. From East to West, the standard time zones in the US are: Eastern Standard (GMT -5), Central Standard (GMT -6), Mountain Standard (GMT -7), Pacific Standard (GMT -8).
6am Pacific Standard Time is 9am Eastern Standard Time. This is because the time difference between Pacific Standard Time (PST) and Eastern Standard Time (EST) is 3 hours.
12:00 pm in the pacific standard time
In the contiguous United States, there are four time zones. Eastern Standard Time, Central Standard Time, Mountain Standard Time and Pacific Standard Time. Each time zone is separated one hour from the time zones that it borders. In this case, Central Standard Time (CST) is separated from Pacific Standard Time (PST) by the Mountain Standard Time (MST). Therefore the two time zones are two hours apart from each other.
10 AM Mountain Daylight Saving Time = 8 AM Pacific Standard Time = 9 AM Pacific Daylight Saving Time 10 AM Mountain Standard Time = 9 AM Pacific Standard Time = 10 AM Pacific Daylight Saving Time
London is eight hours ahead of the Pacific time zone.