11 January 2016 is OK.
However, 7:30 GMT is boundary for us. Is it possible to schedule it half an hour later to 8:00 GMT?
Alternatively, we can settle the call to 5pm GMT (or sooner) which should be acceptable for US colleagues.
Please, let us know your choice.
Can you please mail us questions you would like to discuss? You can use: support@rebex.net