Here are the four main market sessions and their opening/closing times.
London Stock Exchange (LSE) market - opens at 8:00 GMT+1 and closes at 16:30 GMT+1.
New York Stock Exchange (NYSE) market - opens at 14:30 GMT+1 and closes at 21:00 GMT+1.
Japanese Stock market - opens at 00:00 GMT+1 and closes at 06:00 GMT+1.
Sydney Stock Exchange market - opens at 23:00 GMT+1 and closes at 05:00 GMT+1.
*You can also check the Extended Hours Trading for the Pre and After hours Markets by clicking here.