Those two things are called the time zone - a geographical area that has and had the same time all the time - and the zone time within that time zone which migh

Those two things are called the time zone - a geographical area that has and had the same time all the time - and the zone time within that time zone which might change from time to time, for example regularly because of daylight saving time or kind somewhat randomly because people change their mind about which time they want to use.