In message , at 15:58:39 on Mon, 6 Jul 2015,
Mizter T remarked:

http://www.bbc.co.uk/news/uk-england-33416289

'The London Tube strike will "definitely go ahead" for 24 hours from
Wednesday evening, union Aslef has said.'

Although the effect is much more than 24hrs.

From TfL email:

"there will be no Tube service from late afternoon on Wednesday 8 July
and no Tube service at all on Thursday 9 July."

So that's at least 36hrs.
--
Roland Perry