11 hours
Egypt is approximately 2 hours ahead of London GMT.
London is ahead.
London is GMT, New York is GMT -5 hours. New York is 5 hours behind London.
Hungary is always one hour ahead of London.
Mauritius is four hours ahead of London when London is on Winter Time (three hours ahead when London is on Summer Time).
From early April to early October, Sydney (UTC+10) is nine hours ahead of London (UTC+1).From late October to late March, Sydney (UTC+11) is eleven hours ahead of London (UTC+0).During the rest of the year, Sydney (UTC+11) is ten hours ahead of London (UTC+1).Noon GMT = 1 PM BST = 10 PM AEST = 11 PM AEDT
Florida is is five hours behind London.
China is eight hours ahead of London from the last Sunday of October until the last Sunday of March and seven hours ahead the rest of the year.
Five hours.
nine hours
London is ahead of Cuba by 5 hours.
London is 6 hours in front of Houston.