How Are Standard Time Useful

places located on different meridians have different local time.

it would create difficulties if all countries would adopt different local time. and:-

1.the railway timetables as well as air schedules will be difficult to prepare and people crossong longitudes should adjust their watches.

in order to avoid this problem and maintain its uniformity all over a country, it was decided to adopt the local time of a central meridian of a country as the stendars time.

the meridian selected for a country is called the Standard M eridian

therefore, standard time is important..