On 02/27/2018 12:16 PM, chris wrote:

What is the best way of selecting current timestamp in UTC?

SELECT
CURRENT_TIMESTAMP   as ct1

Well the above would depend on your database having its time zone
set to UTC.

,timezone('UTC',CURRENT_TIMESTAMP) as ct2
,timezone('utc',now()) as ct3
,CURRENT_TIMESTAMP at time zone 'UTC' as ct4
,NOW() at time zone 'utc' as ct5

The rest would do the job. The question becomes where are you planning on calling these and what is tine you are looking for? See the below for more information:

https://www.postgresql.org/docs/10/static/functions-datetime.html#FUNCTIONS-DATETIME-CURRENT

Basically the functions act differently in transactions, which will affect the time returned.


--
Adrian Klaver
adrian.kla...@aklaver.com

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