Like every other place in the world, the week starts on Sunday in London. See the related question below.
Sunday is usually the first day of the week on North American calendars.
Sunday is the first day of the week in British countries.
Yes, if your week starts with Sunday.
It doesn't have a fixed day of the week. Rather, it has a fixed day of the month: it starts on the 25th of Kislev.
It was a Saturday.
The first day in April was a Friday.
August starts on a different day of the week every year, but in August 2012 it started on a Wednesday. Otherwise it starts on the first every year!
July starts on a different day of the week every year. In 2012, it started on a Sunday.
The French week starts on Monday (lundi) and ends on Sunday (dimanche).
Tommorow
2011 starts on a Saturday.
July 12th, 2005 was a Tuesday. It was on this day that the London police identified the suspects of the 2005 London bombings.