Issue #12189 has been updated by Usaku NAKAMURA.

Backport changed from 2.1: WONTFIX, 2.2: DONE, 2.3: REQUIRED to 2.1: WONTFIX, 2.2: WONTFIX, 2.3: UNKNOWN

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Bug #12189: DateTime#to_time removes timezone information
https://bugs.ruby-lang.org/issues/12189#change-58254

* Author: Naotoshi Seo
* Status: Closed
* Priority: Normal
* Assignee: 
* ruby -v: ruby 2.3.0p0 (2015-12-25 revision 53290) [x86_64-darwin13]
* Backport: 2.1: WONTFIX, 2.2: WONTFIX, 2.3: UNKNOWN
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```
irb(main):004:0> DateTime.strptime('2015-11-12 CET', '%Y-%m-%d %Z')
=> #<DateTime: 2015-11-12T00:00:00+01:00 ((2457338j,82800s,0n),+3600s,2299161j)>
irb(main):005:0> DateTime.strptime('2015-11-12 CET', '%Y-%m-%d %Z').to_time
=> 2015-11-12 08:00:00 +0900
```

I think it is better to preserve timezone information as `2015-11-12 00:00:00 +0100`



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