 SCOTLaND should have its own time zone if it does not want to fall in line with the rest of the UK over permanently moving the clocks forward by one hour, according to a leading Tory MP.  The UK Government insists proposals to put the clock forward to provide lighter evenings all year round would only go ahead with the support of the devolved administrations, but the SNP has already declared its opposition to the move, saying there is "no case" for a change.  However, supporters of a three-year-experiment to provide an extra hour of daylight say that it should not be vetoed by the Scots. Tim Yeo, the Conservative chairman of the Commons energy and climate change committee, said there was "no good reason" why Scotland could not have a different time zone.  "Many other countries have two time zones, there are different time zones all over Europe and there are three in the United States," said Yeo, who has previously put forward draft legisla 