Weird Ruby Behavior in DateTime to Time conversion
datetime, ruby, ruby-on-rails, time
Solution
According to the Rails documentation for `DateTime.to_time()`,
If self has an offset other than 0, self will just be returned unaltered
To change to a 0 offset, use `DateTime.utc()`.
1.9.3p194 :005 > t3=t2.utc
=> Sat, 30 Jun 2012 20:43:21 +0000
1.9.3p194 :006 > t3.offset
=> (0/1)
1.9.3p194 :007 > t4=t3.to_time
=> 2012-06-30 20:43:21 UTC
1.9.3p194 :008 > t4.class
=> Time
Problem
My goal is to get a Time instance from a DateTime instance This has been previously discussed here and I am still confused : Convert to/from DateTime and Time in Ruby For me in irb running ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-darwin11.2.0], things work perfectly ``` 1.9.3p0 :001 > require 'Date' => true 1.9.3p0 :002 > require 'Time' => true 1.9.3p0 :003 > t=DateTime.now => #<DateTime: 2012-07-01T01:57:32+05:30 ((2456109j,73652s,621060000n),+19800s,2299161j)> 1.9.3p0 :004 > t2=t.to_time => 2012-07-01 01:57:32 +0530 1.9.3p0 :005 > t.class => DateTime 1.9.3p0 :006 > t2.class => Time 1.9.3p0 :007 > ``` However when working with rails console v 3.2.3 on same ruby platform ``` 1.9.3p0 :001 > t=DateTime.now => Sun, 01 Jul 2012 02:00:00 +0530 1.9.3p0 :002 > t.class => DateTime 1.9.3p0 :003 > t2=t.to_time => Sun, 01 Jul 2012 02:00:00 +0530 1.9.3p0 > t2.class => DateTime ``` What to do to get a Time instance from DateTime in rails?