title: Postgres timezone corrections
body: <p>When we migrated from oracle to postgres 11,We missed to handle timezone for the date fields.Unfortunately data at oracle DB was in EST timezone  and postgres was Asia timezone which suppose to be on EST timezone.
  What could be the best solution for this issue to correct
  NOTE:
  1)In postgres , We have timestamp with timezone data type,
  2) Asia/kolkata timezone is a postgres DB timezone
  3) in oracle ,we don't have timezone or offset</p>