[ruby-core:74901] [Ruby trunk Bug#12273] Time.parse incorrectly parses Russian months

Issue #12273 has been updated by Yui NARUSE.


Viacheslav Ptsarev wrote:
> Victor Shepelev wrote:
> > I assume `Time.parse` is not localized to all world languages. 
> > So, it just ignores the "unidentified" part, replacing it with "current month" (and then fixes non-existent 31.04 into 1.05):
> > 
> > ~~~ruby
> > Time.parse('31 ничего 2016')
> > # => 2016-05-01 00:00:00 +0300 
> > Time.parse('31')
> > # => 2016-05-01 00:00:00 +0300
> > ~~~
> 
> Thanks. So what should I use to parse dates in Russian?

Just replace Russian to English with gsub before parsing.

----------------------------------------
Bug #12273: Time.parse incorrectly parses Russian months
https://bugs.ruby-lang.org/issues/12273#change-58026

* Author: Viacheslav Ptsarev
* Status: Open
* Priority: Normal
* Assignee: 
* ruby -v: 2.3.0
* Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN
----------------------------------------
When parsing dates in Russian where day number is 31, `Time.parse` returns `2016-05-01`. No matter what month or year is provided.
31 march 2016:

```
irb(main):003:0> require "time"
=> true
irb(main):004:0> Time.parse "31 марта 2016"
=> 2016-05-01 00:00:00 +0300
irb(main):005:0> Time.parse "31 march 2016"
=> 2016-03-31 00:00:00 +0300
irb(main):006:0> Time.parse "31 mars 2016"
=> 2016-03-31 00:00:00 +0300
```

31 december 2013:

```
irb(main):013:0> Time.parse "31 декабря 2013"
=> 2016-05-01 00:00:00 +0300
irb(main):014:0> Time.parse "31 december 2013"
=> 2013-12-31 00:00:00 +0400
```



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