GIO4X Labs · Experiment

One day of markets

Twenty-four hours of UTC, played in about two minutes. Watch the day cross the globe and the centres open and close in turn, or take the slider and stop on any minute.

Reading your clock…

One UTC day

--:--UTC

Reading your clock…

Open: …

Seven chapters, listed under the stage.

Day

Time of day, UTC--:-- UTC

ScheduleRead from each venue’s regular weekday timetable and the sun’s position on the date shown, with your browser’s time-zone data. Public holidays and early closes are not reflected. World Market Clock

The day in seven chapters.

In the order of the trading day, which is conventionally counted from Sydney. Sydney’s morning is late evening on the UTC clock, so in a film of one UTC day its chapter comes last. The times are for the day shown and move when a centre changes its clocks.

Sydney opens
--:-- UTC
The trading day is conventionally counted from Sydney, where the FX window opens at 08:00 local time and the exchange, the ASX, begins its regular session at 10:00.
On the UTC clock that is late in the evening, so this film of one UTC day ends where the next trading day begins.
Tokyo opens
--:-- UTC
Tokyo’s exchange, the TSE, begins its regular session at 09:00 local time, and the Tokyo FX window is conventionally counted from 09:00.
With Sydney already at work this is the Asia-Pacific morning: the home session of the yen, the Australian dollar and the New Zealand dollar.
The Tokyo–London handover
--:-- UTC
Tokyo’s exchange ends its regular session at 15:30 local time, while the Tokyo FX window conventionally runs to 18:00 and Europe’s desks are arriving.
The time in which the Tokyo and London windows are both open is short, and its length changes with daylight saving in the United Kingdom.
London opens
--:-- UTC
London’s exchange, the LSE, begins its regular session at 08:00 local time, the London FX window is counted from 08:00, and Frankfurt’s Xetra opens at 09:00 in its own zone.
Centres further east whose regular hours have not yet ended are still open, so for a while two regions are at their desks together.
The London–New York overlap
--:-- UTC
The New York FX window opens at 08:00 local time while London’s is still open, and New York’s exchange, the NYSE, begins its regular session at 09:30.
More centres open together means more participants at their desks. It says nothing about the direction of any price.
New York closes
--:-- UTC
New York’s exchange ends its regular session at 16:00 local time, the last of the 9 on this globe to close.
The New York FX window conventionally runs to 17:00, and on a Friday that hour is also the end of the FX week.
The quiet hours
--:-- UTC
Between the end of New York’s day and the regular session in Sydney, none of the 9 exchanges on this globe is inside its regular hours.
Foreign exchange does not stop on a weekday: quotes continue, with few centres at their desks.

The nine centres are Sydney (ASX), Tokyo (TSE), Hong Kong (HKEX), Singapore (SGX), Mumbai (NSE), Dubai (DFM), Frankfurt (Xetra), London (LSE), New York (NYSE). On a Saturday or Sunday they are closed and the film says so.

How to read it

A timetable and the sun. Nothing else.

The film is drawn from the regular hours of 9 exchanges, the 4 conventional FX windows and the position of the sun. It is the cinematic companion of the World Market Clock, which reads the same timetable for the present minute.

The globe: Land is a coarse field of points, brighter where the sun is up. The line between night and day is where the sun puts it at that minute of that date; a small rayed ring marks the place where the sun is overhead.
The nine centres: A filled lamp is a centre inside its regular session, a half lamp is its midday break, a ring is the hour before its open, and a small dot is closed. A half sun stands over a centre while sunrise or sunset passes it.
The arcs: A line joins every two centres that are inside their regular sessions at the same time. It shows that both are open, and nothing about what passes between them.
The dial: Twenty-four hours of UTC run clockwise from the top. The four FX windows sit on it in two lanes, so that an overlap reads as two bands side by side, and the hand marks the minute being shown.

The FX windows on the dial

Conventional FX session windows in each city’s local time, with the letters each carries on the dial
On the dial	Session	Window, local time
SYD · inner lane	Sydney	08:00–17:00
TYO · outer lane	Tokyo	09:00–18:00
LDN · inner lane	London	08:00–17:00
NY · outer lane	New York	08:00–17:00

What the film does not know

Prices, volumes or any measure of how busy a market is.
Public holidays, half-days and early closes at any venue.
Pre-market, after-hours and auction phases.
The hours GIO4X offers on any particular instrument.

The land is schematic, sunrise and sunset are computed and good to a few minutes, and nothing is stored or sent: the film runs in your browser from your own clock. Data methodology

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The day in seven chapters.

Sydney opens

--:-- UTC

The trading day is conventionally counted from Sydney, where the FX window opens at 08:00 local time and the exchange, the ASX, begins its regular session at 10:00.

On the UTC clock that is late in the evening, so this film of one UTC day ends where the next trading day begins.

Tokyo opens

--:-- UTC

Tokyo’s exchange, the TSE, begins its regular session at 09:00 local time, and the Tokyo FX window is conventionally counted from 09:00.

With Sydney already at work this is the Asia-Pacific morning: the home session of the yen, the Australian dollar and the New Zealand dollar.

The Tokyo–London handover

--:-- UTC

Tokyo’s exchange ends its regular session at 15:30 local time, while the Tokyo FX window conventionally runs to 18:00 and Europe’s desks are arriving.

The time in which the Tokyo and London windows are both open is short, and its length changes with daylight saving in the United Kingdom.

London opens

--:-- UTC

London’s exchange, the LSE, begins its regular session at 08:00 local time, the London FX window is counted from 08:00, and Frankfurt’s Xetra opens at 09:00 in its own zone.

Centres further east whose regular hours have not yet ended are still open, so for a while two regions are at their desks together.

The London–New York overlap

--:-- UTC

The New York FX window opens at 08:00 local time while London’s is still open, and New York’s exchange, the NYSE, begins its regular session at 09:30.

More centres open together means more participants at their desks. It says nothing about the direction of any price.

New York closes

--:-- UTC

New York’s exchange ends its regular session at 16:00 local time, the last of the 9 on this globe to close.

The New York FX window conventionally runs to 17:00, and on a Friday that hour is also the end of the FX week.

The quiet hours

--:-- UTC

Between the end of New York’s day and the regular session in Sydney, none of the 9 exchanges on this globe is inside its regular hours.

Foreign exchange does not stop on a weekday: quotes continue, with few centres at their desks.

On the dial

Session

Window, local time

SYD · inner lane

Sydney

08:00–17:00

TYO · outer lane

Tokyo

09:00–18:00

LDN · inner lane

London

08:00–17:00

NY · outer lane

New York

08:00–17:00