display AM/PM format in time_select tag in rails

I am using

<%= f.time_select :time_from ,  :minute_step => 15 %>

to display time select option with a step of 15 mins.

Its showing 24hours clock. I want to show 12hour clock in display section (use开发者_运维百科r view) and 24hour clock in value section (for back ground processing.).

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Here is 12 hour plugin for this.

http://code.google.com/p/rails-twelve-hour-time-plugin/

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The plug-in is pretty old. For Rails 3, see https://gist.github.com/1340125. Rails 3.1 has a built-in option.

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You can add am and pm to your time by putting this

<%= f.time_select :time,  {ampm: true},placeholder: "Pickup time"%>