What is the longest filibuster in the British House of Commons?

The longest filibuster in the British House of Commons occurred in 1909 when Liberal MP Sir Charles Dilke spoke for a total of 8 hours and 16 minutes against the Parliament Bill. This bill aimed to limit the House of Lords' power to veto legislation, and Dilke's lengthy speech was part of a broader debate on the bill. Filibustering in the British Parliament is relatively rare compared to its use in the U.S. Congress.