Truman Markets
Brick Lane Market is the collective name for a number of London markets centred on Brick Lane, in Tower Hamlets in east London. The original market was located at the northern end of Brick Lane and in the heart of what is now east London's Bangladeshi community but now commonly refers to the various markets that are housed along the famous London street. The various markets that stretch the length of Brick Lane operate both weekdays but most historically weekends: Saturday from 11 a.m. to 6 p.m. and Sunday from 10 a.m. to 6 p.m.

Brick Lane Market is the collective name for a number of London markets centred on Brick Lane, in Tower Hamlets in east London. The original market was located at the northern end of Brick Lane and in the heart of what is now east London's Bangladeshi community but now commonly refers to the various markets that are housed along the famous London street. The various markets that stretch the length of Brick Lane operate both weekdays but most historically weekends: Saturday from 11 a.m. to 6 p.m. and Sunday from 10 a.m. to 6 p.m.
Check the official site before travelling; hours and prices can change.
More markets

Borough Market
London's defining food market — go early Saturday, eat your way around the perimeter.

Columbia Road Flower Market
Sunday-only flower market in the East End — 8 a.m. for choice, 2 p.m. for prices.

Maltby Street Market
Borough's smaller, scruffier sibling — railway arches, weekend only.
Source: wiki-list