Time Change Reminder - September / October / November 2026

Trading Discussion
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Over the next five weeks, beginning this weekend, Daylight Saving Time Changes will affect forex markets around the world, as various countries on various dates, switch from Daylight Saving Time to Standard Time, or vice versa.

During this period, you might see the opening and closing times of the foreign markets you trade change by one or two hours, depending on where you are located and which foreign markets you are following.

This may, or may not, have a significant impact on your trading, depending on the time-frame you are trading. Generally, the shorter your time-frame (scalping or intraday trading, for example) the more important it will be for you to stay in sync with the trading hours in your chosen markets.

Here is the schedule of changes that will occur over the next 5 weeks:

Daylight Saving Time Changes in the major forex markets

  • September 27 — New Zealand will begin southern hemisphere Daylight Saving Time (DST)

  • October 4 — southeastern Australia (Sydney, Melbourne, Canberra, Hobart, etc.) will begin DST

  • October 25 — the U.K., Ireland, and all of eastern and western Europe will return to Standard Time

  • November 1 — the U.S., Canada, and northern Mexico will return to Standard Time

Significant markets which do not observe Daylight Saving Time — listed in order by forex market size (figures in parentheses are daily forex trading volumes in billions of USD
— source: BIS 2025)

Singapore (1,485), Hong Kong (883), Japan (440), and China (235)

Other markets which do not observe Daylight Saving Time — listed according to forex market size

India (87), Korea (86), Russia (47 ?, see Note below), Taiwan (45), U.A.E. (39), Brazil (30), Mexico (28), Malaysia (24), South Africa (21), Turkey (19), Thailand (18), Saudi Arabia (7), Indonesia (7), Colombia (7), and Philippines (6).

Note regarding Mexico: The Mexican states nearest the US border switch from DST to Standard Time in sync with the US. The majority of Mexican states remain on Standard Time year-round.

Note regarding Russia: The figure for Russia’s daily forex trading volume ($47 billion/day) is from the BIS Triennial Survey in 2019, as the figure for Russia was not available in the Surveys of 2022 or 2025.

For additional Notes on Daylight Saving Time, and on the time zones referenced in this thread,
see THIS POST.

For a complete list of all daylight saving time changes occuring this season worldwide, see https://www.timeanddate.com/time/dst/events.html

See post #2 for details of the time changes which will occur in New Zealand this weekend

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On Sunday, September 27, New Zealand will begin southern hemisphere Daylight Saving Time.

  • In New Zealand, the NZST time zone (UTC+12) will change to NZDT (UTC+13)

Clocks in New Zealand will be turned forward by one hour, prior to the opening of the forex market on Monday morning, September 28.

  • For traders in New Zealand: The forex trading session in New Zealand will not change. But, starting September 28, the forex trading session in every other market will begin and end one hour later than previously.

  • For traders in all other locations: The only change will be that, starting September 28, the forex trading session in New Zealand will begin and end one hour earlier than previously.

The next Daylight Saving Time change will occur in one week, at which time s.e. Australia will begin DST.

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On Sunday, October 4, southeastern Australia will begin Daylight Saving Time.

The region referred to here as southeastern Australia comprises the states of New South Wales (Sydney, etc.), Victoria (Melbourne, etc.), Australian Capital Territory - ACT (Canberra, etc.), South Australia (Adelaide, etc.), and the island of Tasmania (Hobart, etc.). Geographically, southeastern Australia comprises a little less than a third of the Australian continent.

  • In New South Wales, Victoria, ACT, and Tasmania, the AEST time zone (UTC+10) will change to AEDT (UTC+11).

  • In South Australia, the ACST time-zone (UTC+9½) will change to ACDT (UTC+10½).

Clocks in these states will be turned forward by one hour, prior to the opening of the forex market on Monday morning, October 5.

  • For traders in southeastern Australia, the forex trading session in Sydney will not change, but the trading session in every other market will begin and end one hour later than previously, starting on Monday morning.

  • For traders in the rest of Australia, and in all other countries, the only change will be that the forex trading session in Sydney will begin and end one hour earlier than previously, starting on Monday morning.

Note: The states of Queensland (Brisbane, etc.), Northern Territory (Darwin, etc.), and Western Australia (Perth, etc.) do not observe Daylight Saving Time.

The next Daylight Saving Time change will occur in 3 weeks, at which time the U.K. and Europe will end Summer Time (DST) and will return to Standard Time.