As it was a lovely clear night here in East Midlands we stood outside to watch Tim go over at 9.23pm! but no sighting! After looking it up on the official Nasa site it says no sightings between Sat 26th and Thurs 31st. Wonder why they are sending out wrong info??
NASA probably don't allow for BST. Daylight saving time is inconsistent even between US states, if I recall correctly.
Also, if you've purged website cookies recently, you may need to tell it your viewing location (latitude/longitude) all over again.
The website I use has a low elevation pass at 4 am on 30th as the next one due (unlit flybys are filtered out unless you click something to request them).