Asia session opening

Hi in 11 chapter in babypips courese it say that Tokyo opens at 11AM GMT and in next chapter first paragraph says that Tokyo opens at 12 AM GMT?
WHAT IS CORRECT?

this comes from this link

http://www.forexmarkethours.com/

or you can check this…

http://forex.timezoneconverter.com/

feel free to provide the link to the page you are referring to

feel free to visit these sites and play with the time zones as you see fit

it would also be useful to get the GMT offset for the time you are referring to .

Thanks I’m in GMT +1 .Another question in summer time forex do not work from 9PM to 10 PM GMT?