The Fashionably Late fashion market is held every Thursday evening, starting at 16:00 and running til around 23:00. The market is sponsored by the Tel Aviv Municipality, so has some solid backing behind it. There has also been a number of big street parties and events to coincide with the market, so keep an eye out on this part of the world on a Thursday evening!
And watch out for some bargains and some very unique one-offs!
For more information, see their Facebook page (only in Hebrew unfortunately).