Rails: convert UTC DateTime to another time zone

ruby-on-rails ruby datetime runtime
Drew Johnson picture Drew Johnson · Apr 23, 2010 · Viewed 84.6k times · Source

In Ruby/Rails, how do I convert a UTC DateTime to another time zone?

Answer

mckeed picture mckeed · Apr 23, 2010 
time.in_time_zone(time_zone)

Example:

zone = ActiveSupport::TimeZone.new("Central Time (US & Canada)")
Time.now.in_time_zone(zone)

or just

Time.now.in_time_zone("Central Time (US & Canada)")

You can find the names of the ActiveSupport time zones by doing:

ActiveSupport::TimeZone.all.map(&:name)
# or for just US
ActiveSupport::TimeZone.us_zones.map(&:name)

Related questions

Rails DateTime.now without Time

I need to use DateTime.now to grab the current date, and "strip off" the time. For example, this shows what I don't want: DateTime.now => Sat, 19 Nov 2011 18:54:13 UTC +00:00 This shows what I do want: DateTime.now.some_operation =&…

Read More
Transform DateTime into simple Date in Ruby on Rails

I have a datetime column in db that I want to transform into a simple date when I show it to users. How can I do that? def shown_date # to_date does not exist, but is what I am …

Read More
Convert duration to hours:minutes:seconds (or similar) in Rails 3 or Ruby

I have a feeling there is a simple/built-in way to do this but I can't find it. I have a duration (in seconds) in an integer and I want to display it in a friendly format. e.g. 3600 would …

Read More