31. The window remained open until 23 : 00 BST on 31 August 2011. 32. The building collapsed at about 08 : 57 a . m . BST , 33. The window remained open until 18 : 00 BST on 1 September 2015. 34. She said the company would let the consumers decide whether they want BST milk. 35. There is no human health problem associated with small amounts of BST in milk, 36. Some ritics say Thoms Keller's resturant is the bst in the county. 37. They left the building at 09 : 30 ( BST ) on 30 April. 38. Others have proposed the abolition of BST entirely, favouring GMT all year round. 39. BST then proceeded to recruit other staff from Channel Seven, notably Michael Katzmann.40. The tolerance is with reference to Greenwich Mean Time ( BST in summer ).
