US trading is ordinarily 1430-2100 UK time while the LSE is open 0830-1630
FYI within each stock page you should be able to click a link that opens the respective market times for that stock too 
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US trading is ordinarily 1430-2100 UK time while the LSE is open 0830-1630
FYI within each stock page you should be able to click a link that opens the respective market times for that stock too