What time does the London Stock Exchange Open and close?

Could you please clarify the operational hours of the London Stock Exchange? I'm interested in knowing precisely when the trading session begins and ends. Additionally, is there a difference in the opening and closing times during standard and non-standard business days? Also, if there are any scheduled breaks or interruptions during the trading day, I'd like to be aware of those as well. Your expertise in this field would be invaluable in providing me with this information. Thank you for your assistance.