Most people only have to worry about time zones when they go on holiday, even in the internet age, so they gain nothing. It forces people to give up familiar c

Most people only have to worry about time zones when they go on holiday, even in the internet age, so they gain nothing. It forces people to give up familiar concepts of hours, minutes, and seconds, for no good reason. It forces people in some locations to get used to the date changing during daylight hours (big change if you are used to the date changing at midnight, after or just before you go to bed).