South Australia, New South Wales, Victoria, the Australian Capital Territory and Tasmania advance one hour for Summer Time (a.k.a. Daylight Saving Time), the Lord Howe Island advances a half hour for Summer Time.
In Australia, Summer Time begins on the 1st Sunday of October and ends on the 1st Sunday of April.
No. Arizona does not use daylight savings time.
No Hawaii does not use Daylight Savings Time.
DST is not in use at Guantanamo.
No, Okinawa does not observe daylight savings time like the United States does.
no Japan does not observe day light savings time
To save daylight
No. Arizona does not use daylight savings time.
No Hawaii does not use Daylight Savings Time.
Tonga is 13 hours ahead of GMT. As Tonga is about halfway from NZ to Hawaii, and therefore mainly tropical, they have no real use for daylight savings.
No. Arizona and Hawaii, do not use it.
DST is not in use at Guantanamo.
No, Okinawa does not observe daylight savings time like the United States does.
Daylight Saving Time results in an increase in the use of air conditioning, which counteracts the decrease in the use of lighting for which Daylight Saving Time was intended.
no Japan does not observe day light savings time
Ben Franklin was the first to propose to save the use of candles by getting up earlier in the morning to make use of sunlight, but the US did not implement Daylight Saving Time until WWI. It was to help conserve energy resources for the war. The schedule for DST has changed many times in the US. The last change was made in 2007.
The answer would depend on whether it is during the observation of daylight savings time or not. When the clocks spring ahead 1 hour in the spring, you begin to use PDT (Pacific Daylight Time). When the clocks fall back an hour in the fall daylight savings time is over and then you begin to use PST (Pacific Standard Time).
Daylight Saving Time (United States) began Sunday, March 11, 2012, 2:00am, and ends Sunday, November 4, 2012, 2:00am.Except Arizona and Hawaii. Move your clocks ahead 1 hour in spring and back 1 hour in fall ("Spring forward, fall back") .