Thomas Kellerer <spam_eater@xxxxxxx> writes: > A recent discussion around timestamptz behaviour has lead me to question my own understanding on how a TIMESTAMPTZ is converted to the session's time zone. > I assumed this conversion happens *on the server* before the value is sent to the client. It's done in the datatype's output conversion function. > A co-worker of mine claims that this is purely a client side thing, and that the server will always send the "plain" UTC value that is stored in a timestamptz column. Your co-worker is certainly wrong so far as text output is concerned. If you retrieve data in binary format, though, it looks like you get the raw (un-rotated) timestamp value, so that any conversion would have to be done on the client side. regards, tom lane
