Local time zone offset in PostgreSQL

Question

My web app stores all timestamps in UTC without time zones. I have a shell/psql script that returns a list of recent logins, and I want that script to display login times in

Answer 1

SELECT  current_setting('TIMEZONE')

This can be used in a query, however, this does not give a numerical difference.

Your solution is fine.

Answer 2

To get # of seconds difference as an integer, I have used simply:

select extract( timezone from now() );