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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Umut TEKİN <umuttechin@gmail.com>
Cc: pgsql-bugs@lists.postgresql.org
Subject: Re: Inconsistent 'at time zone' conversion
Date: Sun, 19 Feb 2023 18:49:47 -0500
Message-ID: <3449861.1676850587@sss.pgh.pa.us> (raw)
In-Reply-To: <CAPZcZRmcTnGPABC8o+5hwLz2wN0uHK=hG+Xj=swVvDS8i5Dekg@mail.gmail.com>
References: <CAPZcZRmcTnGPABC8o+5hwLz2wN0uHK=hG+Xj=swVvDS8i5Dekg@mail.gmail.com>

=?UTF-8?Q?Umut_TEK=C4=B0N?= <umuttechin@gmail.com> writes:
> I think I found a bug about time zones.

You're just confused about the signs of timezone offsets.
"UTC-7" is read as POSIX notation so that it means 7 hours
east of Greenwich, not west where Denver is.  See

https://www.postgresql.org/docs/current/datetime-posix-timezone-specs.html

			regards, tom lane

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