Question

A person travelling from Delhi to London has to adjust his watch/mobile. What will he do?

Answer 1

A person travelling from Delhi to London will have to adjust his watch or mobile clock to the new local time zone. Since London lies to the west of Delhi, the traveller will set the watch one hour behind for each time zone crossed while moving westward. This means he will turn his watch back by the total number of hours difference between Indian Standard Time (IST) and the local time in London. This adjustment accounts for the difference in time zones, as the Earth is divided into 24 time zones, each differing by one hour. Therefore, on moving west, the time is set backward accordingly to match the local time of the destination.