Time Change Reminder -- March / April 2022

Over the next 3 weeks, various countries will begin (or end) Daylight Saving Time (DST), turning their clocks forward or back, as the case may be — and, in the process, shifting their trading session times forward or back – by one hour.

Then, in the Fall, all these time changes will be reversed on various dates, beginning in late September.

We have been tracking these time changes for several years, and by now you know how to make the necessary adjustments in your trading. All you need is a schedule of the changes which are coming.

Here’s the schedule:

Daylight Saving Time Changes for March-April 2022 in the major forex markets

  • March 13 — the US and Canada will begin Daylight Saving Time

  • March 27 — the UK, and eastern, central and western Europe will begin Summer Time (DST)

  • April 3 — southeastern Australia (Sydney, Melbourne, Canberra, Hobart, etc.)
    and New Zealand will return to Standard Time

Daylight Saving Time Changes in other markets

  • March 27 — Ireland will begin Summer Time (DST)

  • April 3 — most of Mexico will begin Daylight Saving Time

Major markets which do not observe Daylight Saving Time — listed by forex market size
(figures in parentheses are daily forex trading volumes in billions of USD — source: BIS 2019)

  • Singapore (633), Hong Kong (632), Japan (376), and China (136)

Other markets which do not observe Daylight Saving Time

  • Korea (55), Russia (47), United Arab Emirates (46), India (40), Taiwan (30), South Africa (20),
    Turkey (19), Brazil (19), Thailand (14), and Malaysia (10)

See post #2 for details of the time changes which will occur in the US and Canada this weekend.

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On Sunday, March 13, the US and Canada will begin Daylight Saving Time (DST).

Six time zones in the US (including Alaska and Hawaii), and seven time zones in Canada (including the maritime provinces of New Brunswick, Nova Scotia, and Newfoundland), will be affected by this time change.

In the eastern US and Canada, which includes the key New York market, the time zone will change from UTC-5 to UTC-4.

Clocks in the US and Canada (and in Bermuda, Bahamas, and Cuba) will be turned forward one hour prior to the opening of the forex market on Monday morning, March 14. *(see the Note below)

  • For traders in the US and Canada, the New York Session times will not change, but the trading sessions in every other forex market will open and close one hour later than previously, starting Monday morning, March 14.* (see the Note, below).

  • For traders in all other countries, the only change will be that the New York Session will open and close one hour earlier than previously, starting Monday morning.

*Note – These statements do not apply to Hawaii, to most of Arizona, and to certain portions of Canada, because those places do not observe DST.

This change will temporarily alter the normal time difference between London and
New York, as follows:

  • For the next 2 weeks — from Sunday, March 13, through Friday, March 25 —
    the London/New York time difference will be 4 hours (instead of the usual 5 hours).

  • And, during this same 2-week time period, the heavily-traded London/New York Overlap
    will be 5 hours (instead of the usual 4 hours), as follows: 12pm-5pm London time,
    and 8am-1pm New York time.


The next DST time change will occur in 2 weeks, on March 27, at which time the UK and all of eastern, central, and western Europe will begin Summer Time (daylight saving time).

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I WAS LOOKING FOR THIS! My days have been off becase I only read this today. Lol.

Here in the U.S., we might finally get free of this clock-changing nonsense next year. The U.S. Senate has unanimously passed a bill which – if approved by the House of Representatives, and signed by the President – will allow all the states to remain on Daylight Saving Time permanently, beginning in the fall of 2023.

For forex traders, and other folks dependent on world markets, this move by the U.S. would be helpful only if the rest of the world follows suit. Canada will surely make this change, if we do. But the proposal to scrap semi-annual clock-changes in Europe has been stalled in the European Council for two years.

The best outcome, from our standpoint as forex traders, would be for Canada, the U.K., all of Europe, Australia and New Zealand to cooperate in simultaneously ending the clock-changing ritual. Do you think that’s too much to hope for?

Here’s an article from timeanddate.com that discusses this issue in more detail.

The US Senate Approves Permanent DST Bill

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Time zone abbreviations appearing in this thread

In the eastern US and Canada –

  • EST – Eastern Standard Time
  • EDT – Eastern Daylight Time

In the UK –

  • GMT – Greenwich Mean Time (standard time in the UK)
  • BST – British Summer Time

In western Europe –

  • IST – Irish Standard Time (in Ireland)
  • BST – British Summer Time (in Ireland)
  • WET – Western European Time (standard time in Portugal)
  • WEST – Western European Summer Time (in Portugal)

In central Europe –

  • CET – Central European Time (standard time)
  • CEST – Central European Summer Time

In eastern Europe –

  • EET – Eastern European Time (standard time)
  • EEST – Eastern European Summer Time

In southeastern Australia –

  • AEST – Australian Eastern Standard Time
  • AEDT – Australian Eastern Daylight Time

In New Zealand –

  • NZST – New Zealand Standard Time
  • NZDT – New Zealand Daylight Time

Worldwide –

  • UTC – Coordinated Universal Time (not actually a time zone, it is the international baseline against which all time zones are defined)
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Ugh I sure hope so. I was gonna complain about it being daylight and not standard but honestly as long as I don’t have to change my clocks, I don’t care.

On Sunday, March 27, the UK and all of western, central and eastern Europe will begin Summer Time (what we, in the US, call Daylight Saving Time - DST).

This time change will involve every country situated between the Atlantic Ocean and the Russian border, except Belarus.

Listed geographically, from west to east —

  • In western Europe, Ireland’s IST (UTC+0) time zone will change to BST (UTC+1).
    Also in western Europe, Portugal’s WET (UTC+0) time zone will change to WEST (UTC+1).

  • In the UK (including the Channel Islands), the GMT (UTC+0) time zone will change to BST (UTC+1).

  • In central Europe (30 countries and principalities from Spain east to Serbia, and from Sweden south to Malta), the CET (UTC+1) time zone will change to CEST (UTC+2).

  • In eastern Europe (Finland, Estonia, Latvia, Lithuania, Ukraine, Moldova, Romania, Bulgaria, Greece, and Cyprus), the EET (UTC+2) time zone will change to EEST (UTC+3).

Clocks in all of these countries will be turned forward one hour, prior to the opening of the forex market on Monday morning, March 28.

  • For traders in all of these countries, opening and closing times in the London Session and in the European Session will not change, but the trading sessions in Tokyo and New York will begin and end one hour later than previously, starting Monday morning.

  • For traders in countries not listed above, the only change will be that the London Session and the European Session will begin and end one hour earlier than previously, starting Monday morning.

This change will restore the normal time difference between New York and London, as follows:

  • Beginning on Monday morning and continuing until September, the time difference between New York and London (which has been 4 hours in duration for the past 2 weeks) will return to its normal 5-hour duration.

  • Also beginning Monday morning, the heavily-traded London / New York Overlap period will return to its normal 4-hour duration: 1 pm-5 pm London time, and
    8 am-12 pm New York time.


The last DST time change for this season will occur in one week, on April 3, at which time New Zealand and southeastern Australia will return to Standard Time.

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On Sunday, April 3, New Zealand and southeastern Australia will end Daylight Saving Time (DST), and will return to southern hemisphere Standard Time.

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

  • In the Australian states of New South Wales, Victoria, ACT, and Tasmania (Sydney, Melbourne, Canberra, Hobart, etc.), the AEDT time zone (UTC+11) will change to AEST (UTC+10).

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

Clocks in New Zealand and in southeastern Australia will be turned back one hour, prior to the opening of the forex market on Monday morning, April 4.

  • For traders in New Zealand and in southeastern Australia, the forex trading sessions in Wellington and Sydney will not change, but the trading sessions in Tokyo, Zurich, London, and New York will begin and end one hour earlier 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 sessions in Wellington and Sydney will begin and end one hour later than previously, starting on Monday morning.


Also on April 3, most of Mexico will begin DST.


These are the last time changes for this season. The next series of (worldwide) time changes will begin in late September 2022.

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