Arnab Ghosh <ghosh(at)glenwoodsystems(dot)com> writes:
> ISO 8601 Timezone Example -
> 1994-11-05T08:15:30-05:00 corresponds to November 5, 1994, 8:15:30 am, US
> Eastern Standard Time.
AIUI, the T is optional per spec and therefore PG's default timestamp
output format already meets the 8601 standard.
regards, tom lane