On Sunday, November 3, the U.S. and Canada will end Daylight Saving Time (DST) and will return to Standard Time.
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Five time zones in the U.S. (including Alaska), and seven time zones in Canada (including the maritime provinces of New Brunswick, Nova Scotia, and Newfoundland), will be affected by this time change.
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In the eastern U.S. and Canada, which includes the key New York market, the time zone will change from GMT-4 to GMT-5.
Clocks in the U.S. and Canada will be turned back one hour prior to the opening of the forex market on Monday morning, November 4. [This statement does not apply to Arizona and Hawaii in the U.S., or to most of Saskatchewan, various portions of British Columbia, and small portions of Quebec and Ontario in Canada. Those places do not observe DST.]
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For traders in the U.S. and Canada, opening and closing times in the New York Session will not change. But, the trading sessions in Sydney, Tokyo, Paris, and London will begin and end one hour earlier than previously, starting Monday morning.
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For traders in other countries, the only change will be that the New York Session will begin and end one hour later than previously, starting Monday morning.
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The change occurring on November 3 will restore the time difference between London and New York to 5 hours (which is the normal time difference for most of the year).
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Also, beginning on Monday morning, and continuing until next March, the heavily-traded London/New York Overlap Session will return to its normal 4-hour duration, as follows:
1 pm - 5 pm London time, and 8 am - 12 pm New York time.
This is the last Daylight Saving Time change for this season.
In 2020, the first Daylight Saving Time change (in a major market) will occur on Sunday, March 8, 2020.