How to change default timezone for Active Record in Rails

Question

In my application rb I came across the following comment    Set Time zone default to the specified zone and make Active Record auto-convert to this zone    Run  rake -D time  for a list of tasks for finding time zone names  Default is UTC   config time zone    Eastern Time  US  amp  Canada     As you see from above  I ve made config time zone to EST time   However  still when records are created in the DB  it looks like datetime is being stored in UTC format   In the above comment  they say         and make Active Record auto-convert to this zone      How can I do that  and where   Also  I ll be deploying this on heroku as well and i d like the setting to carry over

User · Answer

If you want to set the timezone to UTC globally, you can do the following in Rails 4:

# Inside config/application.rb
config.time_zone = "UTC"
config.active_record.default_timezone = :utc

Be sure to restart your application or you won't see the changes.

User · Answer

I had to add this block to my environment rb file and all was well     Rails application configure do     config time zone    Pacific Time  US  amp  Canada       config active record default timezone    local end    I added it before the line Rails application initialize

User · Answer

In Ruby on Rails 6 0 1 go to config   locales   application rb y agrega lo siguiente    require relative  boot   require  rails all     Require the gems listed in Gemfile  including any gems   you ve limited to  test   development  or  production  Bundler require  Rails groups   module CrudRubyOnRails6   class Application  lt  Rails  Application       Initialize configuration defaults for originally generated Rails version      config load defaults 6 0      config active record default timezone    local     config time zone    Lima         Settings in config environments   take precedence over those specified here        Application configuration can go into files in config initializers       -- all  rb files in that directory are automatically loaded after loading       the framework and any gems in your application    end end   You can see that I am configuring the time zone with 2 lines   config active record default timezone    local config time zone    Lima    I hope it helps those who are working with Ruby on Rails 6 0 1

User · Answer

adding following to application rb works   config time zone    Eastern Time  US  amp  Canada    config active record default timezone    local   Or  utc

User · Answer

for Chinese user  just add two lines below to you config application rb     config active record default timezone    local config time zone    Beijing

User · Answer

In my case  Rails 5   I ended up adding these 2 lines in my app config environments development rb  config time zone    Melbourne  config active record default timezone    local   That s it  And to make sure that Melbourne was read correctly  I ran the command in my terminal    bundle exec rake time zones all     and Melbourne was listing in the timezone I m in

User · Answer

I came to the same conclusion as Dean Perry after much anguish   config time zone    Adelaide  and config active record default timezone    local was the winning combination   Here s what I found during the process

User · Answer

I have decided to compile this answer because all others seem to be incomplete      config active record default timezone determines whether to use Time local  if set to  local  or Time utc  if set to  utc  when pulling dates and times from the database  The default is  utc    http   guides rubyonrails org configuring html     If you want to change Rails timezone  but continue to have Active Record save in the database in UTC  use    application rb config time zone    Eastern Time  US  amp  Canada       If you want to change Rails timezone AND have Active Record store times in this timezone  use    application rb config time zone    Eastern Time  US  amp  Canada   config active record default timezone    local   Warning  you really should think twice  even thrice  before saving times in the database in a non-UTC format      Note   Do not forget to restart your Rails server after modifying application rb      Remember that config active record default timezone can take only two values    local  converts to the timezone defined in config time zone   utc  converts to UTC      Here s how you can find all available timezones  rake time zones all

User · Answer

On rails 4 2 2  go to application rb and use config time zone  city   e g   London  or  Bucharest  or  Amsterdam  and so on    It should work just fine  It worked for me

User · Answer

If you want local time to set  add the following text in application rb  config time zone    Chennai     WARNING  This changes the way times are stored in the database  not recommended  config active record default timezone    local   Then restart your server

[ruby-on-rails] How to change default timezone for Active Record in Rails?

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