From: "nobu (Nobuyoshi Nakada)" <nobu@...>
Date: 2013-10-17T22:21:32+09:00
Subject: [ruby-core:57914] [ruby-trunk - Bug #9032][Feedback] Time.round	reverts the DST status of the time


Issue #9032 has been updated by nobu (Nobuyoshi Nakada).

Status changed from Open to Feedback
Priority changed from Urgent to Normal

I can't reproduce it.
What's your timezone?

 $ TZ=Europe/Paris ~/ruby/2.0.0-p0/bin/ruby -v -rtime -e 't1 = Time.new(2013, 10, 27, 2, 30, 0); t2 = t1.round(3); [t1, t2].each {|t|p [t, t.dst?, t.zone]}'
 ruby 2.0.0p0 (2013-02-24 revision 39474) [universal.x86_64-darwin11.0]
 [2013-10-27 02:30:00 +0100, false, "CET"]
 [2013-10-27 02:30:00 +0100, false, "CET"]

And it seems an irb session, but why it prints time objects in old format?
----------------------------------------
Bug #9032: Time.round reverts the DST status of the time
https://bugs.ruby-lang.org/issues/9032#change-42502

Author: mayanks (Mayank Sharma)
Status: Feedback
Priority: Normal
Assignee: 
Category: 
Target version: 
ruby -v: ruby 2.0.0p0 (2013-02-24 revision 39474) [x86_64-darwin11.4.2]
Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN


If the time is in non-DST and round method is applied, then the resulting time goes back to DST time. This happens only during the 1 hour when time goes back. Following example should explain the situation better.

2.0.0-p0 :057 > d
 => Sun, 27 Oct 2013 02:30:00 CET +01:00
2.0.0-p0 :058 > d.isdst
 => false
2.0.0-p0 :059 > d.round(3)
 => Sun, 27 Oct 2013 02:30:00 CEST +02:00
2.0.0-p0 :060 > d.round(3).isdst
 => true

I have set the priority Urgent as the DST is going to elapse in 10 days from now.


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