Feature #13822
openTime.dst_changes(t=Time.now.year)
Description
output [time1,time2] of daysaving-changes of given year
I assume the result does not depend on timezone,
only the output will be in default timezone.
Updated by nobu (Nobuyoshi Nakada) almost 5 years ago
- Status changed from Open to Feedback
What are time1
and time2
?
If time1
is the time when DST starts at and time2
is the time when it ends at, then time1 >
time2` in the Southern Hemisphere?
And what will return in non-DST timezones?
Updated by naruse (Yui NARUSE) over 4 years ago
Usually Ruby itself doesn't have such information by itself.
It just calls localtime(3).
If you want to have information related timezone database, you should use tzinfo.gem.
https://rubygems.org/gems/tzinfo
Updated by kronikus (ANDREY KIM) over 3 years ago
- Backport set to 2.4: UNKNOWN, 2.5: UNKNOWN
- ruby -v set to ruby 2.4.3p205 (2017-12-14 revision 61247) [x86_64-linux]
- Subject changed from Time.dst_changes(t=Time.now.year) to Time.dst?
- Tracker changed from Feature to Bug
Is it bug or feature?
Receiving same result for Time.dst? method.
I belive it suppose to base it response on date in variable, correct me if i'm wrong.
Receiving it in Rails 5.1.2, but Time class is in ruby core
gems tzinfo, tzinfo-data are in Gemfile
Time zone configured in rails config:
2.4.3 :001 > Time.zone
=> #<ActiveSupport::TimeZone:0x000055ac84e61410 @name="Eastern Time (US & Canada)", @utc_offset=nil, @tzinfo=#<TZInfo::DataTimezone: America/New_York>>
2.4.3 :013 > t
=> 2018-12-12 10:00:00 -0500
2.4.3 :014 > a
=> 2018-08-01 10:00:00 -0500
2.4.3 :015 > t.dst?
=> false
2.4.3 :016 > a.dst?
=> false
2.4.3 :017 > t.isdst
=> false
2.4.3 :018 > a.isdst
=> false
Updated by shyouhei (Shyouhei Urabe) over 3 years ago
- Backport deleted (
2.4: UNKNOWN, 2.5: UNKNOWN) - ruby -v deleted (
ruby 2.4.3p205 (2017-12-14 revision 61247) [x86_64-linux]) - Subject changed from Time.dst? to Time.dst_changes(t=Time.now.year)
- Tracker changed from Bug to Feature
Be advised: Please do not reuse existing tickets to report something completely different.
Also be advised: please do understand that this is not where ActiveSupport::TimeZone issue should be reported.