ziyun.wang@ericsson.com writes:
> got error:
> ERROR: invalid input syntax for type timestamp with time zone: "Wed May 18
> 09:40:25 GST 2016"
You can adjust the set of zone abbreviations Postgres recognizes:
http://www.postgresql.org/docs/9.3/static/datetime-config-files.html
GST isn't in the default set because there are multiple possible meanings
according to the IANA timezone database.
regards, tom lane