So during the day decided to allocate 4 main trading sessions:

1. Australia and Oceania (Sydney, Wellington) – GMT 22:00-06:00
2. Asian session (Tokyo, Singapore, Hong Kong) – GMT 00:00-09:00
3. European Session (London, Zurich, Paris, Frankfurt) – GMT 07:00-16:00
4. American session (New York, Chicago, Toronto) – GMT 13:30-20:00

Where and how much to UTC begins or that trading session clearly seen in these stock clock:

These clocks showing real time global foreign exchange market and help to accurately see the beginning and end of sessions. Hour hand stock clock unlike ordinary clock only does 1 revolution per day (one rotation every 24 hours), and the minute and second hands to make one rotation in 60 minutes and 60 seconds, respectively, as in ordinary clock.The weekend clock runs in demo mode. Simple principle of stock clock you can see in the picture below: