Trading on the London Stock Exchange begins at 7:50 a.m. with an opening auction and ends at 4:35 p.m. at the end of a closing auction, according to Money-Zine.com. Before the opening auction, trade reporting begins at 7:15 a.m. Order maintenance and trade reporting ends the day at 5:15 p.m.
All trading times on the London Stock Exchange are in the Greenwich Mean Time Zone. The exchange is closed on select holidays, including New Year's Day, Easter Monday, Christmas and Boxing Day, according to Money-Zine.com. On Christmas Eve and New Year's Eve in 2014, the markets open on time but close at 12:30 p.m.