Clocks go forward an hour.

Hello everyone,
Yesterday clocks went forward. I was a little sleepy when I woke up this morning because we lost an hour in bed.
Can you investigate this, please?:

1. Do you know the famous clock on this tower?
2. What's the name of the clock?
3. Where is it?
4. What's the name of the tower?
5. What was the name of the tower before?
6. How old is the clock?
7. How tall is the tower? Is it taller than Eiffel tower?
8. What is the meaning of the abbreviation BST?

Answers

An expert team changed the time yesterday night again. Watch this amazing video.