From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-4.0 required=3.0 tests=AWL,BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by dcvr.yhbt.net (Postfix) with ESMTP id CC16220248 for ; Tue, 2 Apr 2019 00:38:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728681AbfDBAid (ORCPT ); Mon, 1 Apr 2019 20:38:33 -0400 Received: from mail-wm1-f65.google.com ([209.85.128.65]:53069 "EHLO mail-wm1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725961AbfDBAic (ORCPT ); Mon, 1 Apr 2019 20:38:32 -0400 Received: by mail-wm1-f65.google.com with SMTP id a184so1307047wma.2 for ; Mon, 01 Apr 2019 17:38:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:references:date:in-reply-to:message-id :user-agent:mime-version; bh=ZXCPzmPWgVtDIAXedmI9peuL4qMPFUCBqJwuNTJGnsQ=; b=cB+iJi3ic4mehIVHSk42EkNYBX6tyqWh5/muoueth0ypbrsg1UWkYkGHLWDlCdl3UA TQYJ9sF6mJxonyJC1FcpU+48Ce49vvayutP/sUPiwzJgFjD1fU9DGu1KhTQPp86KqGHT 9Zm1ETxlY0VhpCOX0Li2BVFWS8U0ohvk1IOc2ICSEMSY+0hW83WLOmRwfDT1sfJfdPYN DEO+mNO+dbLe2GfwHGLKWFRQAjrnJGVAwM2nA382fFlYPxeRZHWVQUcSd7knF/dZYs8u FWQMoq3U2ITXo1/GhFbNTZSw6X77ION9ArzRPriGRymq0Z173FowAy9IfW3DE2qGL8nF DDNQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:references:date :in-reply-to:message-id:user-agent:mime-version; bh=ZXCPzmPWgVtDIAXedmI9peuL4qMPFUCBqJwuNTJGnsQ=; b=OYI4svb3x6W7TZ2xPRuZ+xbuQiUM4gphdLn/FOyIl9u+NcAs27QkTUnm2JNwIar9xY ia057B+RogZIgnLySZMCo7zM/vPHAOgkH8i1lhLsNLpuxG7g5Fm5cteNqu983vbOhRSN pi7//q5yiM/sFuLKpg1cuLX6KmBYuYJuk7x5BgiWOPsEFENpN0LS/UX84DM9+5F8P1fm XSc5wQY+BpKDgQNsq7kcgQf/6ZkP3wS5dDWqSBG9Sa9Tecijz1EqKIjf1xJOTUKWnZLc yNyn1H91YYSu4diDSTu67fzFm/zLYnYy8eA2UkcEJEmXJe8u6h9Nf54nLrtPUma/z/BY AY+g== X-Gm-Message-State: APjAAAVQ5Xe4wqjQDEPN+DDEYYTTQURpoq6tkzX8VyFGiWnOduilP6yc LR9Da8+FnehfbpFlQEUEeUI= X-Google-Smtp-Source: APXvYqzBZIh5ujT3I23/8tkYjknjyujjC3g5JLjAIgVhvG+p/FNLWijBziuRbAZFlZFNg5jgh/swmw== X-Received: by 2002:a1c:9d4c:: with SMTP id g73mr1438582wme.48.1554165510673; Mon, 01 Apr 2019 17:38:30 -0700 (PDT) Received: from localhost (141.255.76.34.bc.googleusercontent.com. [34.76.255.141]) by smtp.gmail.com with ESMTPSA id k9sm16861644wru.55.2019.04.01.17.38.29 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 01 Apr 2019 17:38:30 -0700 (PDT) From: Junio C Hamano To: Chanseok Oh Cc: git@vger.kernel.org Subject: Re: [Bug] git log - reports wrong date and time References: Date: Tue, 02 Apr 2019 09:38:29 +0900 In-Reply-To: (Chanseok Oh's message of "Mon, 1 Apr 2019 18:31:10 -0400") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Chanseok Oh writes: > BROKEN: anything other than UTC reports wrong date. > > $ TZ=KST git log '--date=format-local:%Y%m%d %H%M%S %z (%Z)' > --format=%cd -n1 > 20190401 210250 +0000 (KST) I think you are probably on a system where timezones can be given only with a more modern and unambiguous style and not in the potentially ambiguous abbreviated form. Here is one experiment to show what I mean: $ TZ=KST date Tue Apr 2 00:29:51 KST 2019 $ TZ=JST date Tue Apr 2 00:29:51 JST 2019 $ TZ=Asia/Tokyo date Tue Apr 2 09:29:51 JST 2019 Two points to be learned from the above exercise are: - It is not limited to your copy of "git". Even a system supplied command like "date" does not work with "JST" but it can grok Asia/Tokyo just fine ("JST" does not necessarily have to be "Japan standard time"; it could be Jamaican ;-)). - It is not limited to KST (is that Kabul standard time? Khartoum? Kinshasa?). Perhaps try TZ=Asia/Seoul or something?