Question

definition of Standard Time in simple language​

Answer 1

the time of a region or country that is established by law or general usage as civil time specifically : the mean time of a meridian that is a multiple of 15 arbitrarily applied to a local area or to one of the 24 time zones and designated as a number of hours earlier or later than Greenwich mean time.

Answer 2

its is the time adapted all over country set up by the govt.