Re: date_trunc() in a specific time zone - Mailing list pgsql-hackers

Andreas Karlsson <andreas@proxel.se> writes:
> Hm, I am not sure if I see any major win from writing
> date_trunc('day', timestamptz '2001-02-16 20:38:40+00', 'Australia/Sydney')
> instead of
> date_trunc('day', timestamptz '2001-02-16 20:38:40+00' AT TIME ZONE 
> 'Australia/Sydney')

The latter would give you timestamp without time zone, whereas I think
what Vik wants is timestamp with time zone.  Yeah, you could then convert
it back with a second application of AT TIME ZONE 'Australia/Sydney',
but that's both inefficient and mighty confusing.

            regards, tom lane