Meeting time change *after* next meeting?

On Mon, Aug 05, 2013 at 01:30:33PM +0530, Amit Shah wrote:
> On (Mon) 05 Aug 2013 [12:19:55], Rusty Russell wrote: >
> Hi all, > >  >
>
Just wanted to discuss whether we can move the meeting time back >
> 3 or (ideally) 4 hours. >
> 3-4 hours earlier than the previous time works fine for me.  Amit and I interpreted "move the meeting time back" differently.  Rusty: Can you clarify whether back means +3 or -3 hours?  Thanks, Stefan