Question

what is local and sandard time

Answer 1

Standard time is the synchronization of clocks within a geographical area or region to a single time standard, rather than using solar time or a locally chosen meridian (longitude) to establish a local mean time standard.

Answer 2

local time is time reckoned in a particular region or time zone.

standard time is a uniform time for places in approximately the same longitude, that is established in a country or region by a law or a custom.