Skip to content


Subversion checkout URL

You can clone with
Download ZIP
A date and time picker for Twitter Bootstrap in Rails using Simple Form

SimpleForm & Bootstrap DateTimepicker for Rails

This gem packages the bootstrap-datetimepicker for Rails asset pipeline and creates the Simple Form custom fields for your project.


- Prepares the vendor directory (javascripts, stylesheets)
- Creates the custom fields for Simple Form
- You can use 3 type of date & time pickers in your forms
- You do not need to write any javascript or CSS code
- The language automatically selected based on the locale
- You can specify all the datetime-pickers options (weekStart, minDate, manDate, disabledDates, etc.)
- The format of the date and time can be specified in the config/locales
- You can customise the picker's iconset to use the Font-Awesome icons (dafault: Glyphicon)
- Easy to install and use in your projects

The current 4.7.15 version compatibility


Master & eonasdan branches, tags v4.3.5+: Bootstrap 3+, Rails 4+ and SimpleForm 3.1+ (using as submodule, well maintained repo). Any further development will be made on these branches.

Tag v1.0.0: Rails 3.2, Bootstrap 2.3.2 & SimpleForm >= 2.0.4 - It is archived. No further development or maintenance.


Versions v4.3.5+ has a dependency on the moment.js version 2.9+ javascript library (for details refer to: Includes the dependency reference in its Gemfile:

gem 'momentjs-rails', '~> 2.9',  :github => 'derekprior/momentjs-rails'

Credits and references

The project is based on: project. It was upgraded to be compatible with Bootstrap 3+ and was refactored significantly by Eonasdan (see:

The project home page:


According your needs, add one of the lines below to your application's Gemfile:

Option 1: Master & eonasdan branches, tags v4+: Bootstrap 3+, Rails 4+ and SimpleForm 3.1+ (using as submodule, well maintained repo). Any further development will be made on these branches:

gem 'datetimepicker-rails', github: 'zpaulovics/datetimepicker-rails', branch: 'master', submodules: true

Option 2: Tag v1.0.0: Rails 3.2, Bootstrap 2.3.2 & SimpleForm >= 2.0.4 - No further development or maintenance.

gem 'datetimepicker-rails', git: 'git://', tag: 'v1.0.0'

then execute:

$ bundle install


Add this line to app/assets/stylesheets/application.css

 *= require bootstrap-datetimepicker
 *= require bootstrap-datetimepicker.min

Add the following lines to app/assets/javascripts/application.js

For version 4+:

//= require moment
//= require bootstrap-datetimepicker
//= require pickers

// You may include any languages (optional)
//= require moment/<your locale>

For version v1.0.0:

//= require bootstrap-datetimepicker/core
//= require bootstrap-datetimepicker/pickers

// You may include any languages (optional)
//= require bootstrap-datetimepicker/locales/

Calling the generator

After you install 'datetimepicker' and add it to your Gemfile, you need to run the generator. The generator will create the custom field definitions for Simple Form in your project. There are 3 custom field definitions. The generator looks at the app/inputs directory of your project and creates only those custom field definitions that are not already exists in your project. If you have a custom input with the same name the generator does not overwrite it.

At generation time the pickers.js and required asset files will be places in your assets pipeline, that makes these files accessible for you out of the box.

The datetimepicker-rails is using the following custom field definitions:

datetime_picker_input.rb    # for fields with :as => :datetime_picker
date_picker_input.rb        # for fields with :as => :date_picker
time_picker_input.rb        # for fields with :as => :time_picker

To run the generator use the following command:

   $ rails generate datetimepicker_rails:install

if you want to use the default Glyphicon icons for the pickers.

To use the Font-Awesome icons for the pickers, execute the following command (only for version v4.0.0+)

  $ rails generate datetimepicker_rails:install Font-Awesome

The current version will copy the required files to your projects 'vendor/assets' directory (not to the gem's vendor/assets directory as before). That gives you much more flexibility to use your preferred options of the bootstrap-datetimepicker plugin.

To tailor the picker to your specific needs you can modify the SimpleForm 'input' definition files and/or the 'pickers.js' file at your own project area.

Using datetimepicker-rails

Just call datetimepicker() with any selector.


<input class="datetimepicker" type="text" >

<script type="text/javascript">


<%= f.input :start_date_time, :as => :datetime_picker %>

<%= f.input :closing_date, :as => :date_picker %>

<%= f.input :begin_at, :as => :time_picker %>

<div class='row datetimerange'>
    <%= f.input :publish_date, as: :datetime_picker, wrapper: :ranged_datetime %>
    <%= f.input :expiration_date, as: :datetime_picker, wrapper: :ranged_datetime %>

Options can be passed from SimpleForm (from version 4.6.10 or later)

    <%= f.input :date_field, as: :date_picker, :label => 'Date field',
                input_html: {data: {date_options: {defaultDate: '2012/12/25'}}} %>

The scripts below will be included when you use the "require pickers" (for version v4.0.0+) or "require bootstrap-datetimepicker/pickers" (for version v1.0.0). If you need different activation scripts, ignore the //= require pickers (for version v4.0.0+) or //= require bootstrap-datetimepicker/pickers (for version v1.0.0) line in app/assets/javascripts/application.js.

Version 4.7.15+:

$(document).on('ready page:change', function() {
    // put here your custom picker options, that should be applied for all pickers

    var $this = $(this)
    var range1 = $($this.find('.input-group')[0])
    var range2 = $($this.find('.input-group')[1])

    if("DateTimePicker").date() != null)"DateTimePicker").minDate("DateTimePicker").date());

    if("DateTimePicker").date() != null)"DateTimePicker").maxDate("DateTimePicker").date());

    range1.on("dp.change",function (e) {

    range2.on("dp.change",function (e) {

The default values of the options:

        format: false,
        dayViewHeaderFormat: 'MMMM YYYY',
        extraFormats: false,
        stepping: 1,
        minDate: false,
        maxDate: false,
        useCurrent: true,
        collapse: true,
        locale: moment.locale(),
        defaultDate: false,
        disabledDates: false,
        enabledDates: false,
        icons: {
            time: 'glyphicon glyphicon-time',
            date: 'glyphicon glyphicon-calendar',
            up: 'glyphicon glyphicon-chevron-up',
            down: 'glyphicon glyphicon-chevron-down',
            previous: 'glyphicon glyphicon-chevron-left',
            next: 'glyphicon glyphicon-chevron-right',
            today: 'glyphicon glyphicon-screenshot',
            clear: 'glyphicon glyphicon-trash',
            close: 'glyphicon glyphicon-remove'
        useStrict: false,
        sideBySide: false,
        daysOfWeekDisabled: [],
        calendarWeeks: false,
        viewMode: 'days',
        toolbarPlacement: 'default',
        showTodayButton: false,
        showClear: false,
        showClose: false,
        widgetPositioning: {
            horizontal: 'auto',
            vertical: 'auto'
        widgetParent: null,
        ignoreReadonly: false,
        keepOpen: false,
        focusOnShow: true,
        inline: false,
        keepInvalid: false,
        datepickerInput: '.datepickerinput'

For more details, please refer to Bootstrap 3 Datepicker v4 Docs site:

Version v1.0.0:

    $(document).on('ready page:change', function() {
            pickTime: false

    $(document).on('ready page:change', function() {
            pickSeconds: false

    $(document).on('ready page:change', function() {
            pickDate: false,
            pickSeconds: false

Date and time formating

Specify your intended date and time formats in your config/locales/en.yml or related language file as follows:

    dformat: '%d/%m/%Y'             # display format of the date (this is the default, can be ommited)
    pformat: 'DD/MM/YYYY'           # picking format of the date (this is the default, can be ommited)
    dformat: '%R'                   # display format of the time (this is the default, can be ommited)
    pformat: 'HH:mm'                # picking format of the time (this is the default, can be ommited)
  dayViewHeaderFormat: 'MMMM YYYY'  # picking format of the time (this is the default, can be ommited)

Notes for formating date/time:

  • dformat is used to format any date value to put it to the html input tag value attribute. The standard Ruby Time library 'strftime' method is used to make this date to string conversion. For more details, please refer to the Ruby Built-in Classes and Modules documentation. This should be applied for any version.

  • pformat is the format, that used by the JavaScript library to format the date/time string submitted by a form.

  1. pformat for current versions: We have upgraded to the repository of bootstrap-datetimepicker by Eonasdan as submodule, the new library is using the moment.js (for more information see Moment's documentation here.

  2. pformat for version v1.0.0: Version v1.0.0 are based on the bootstrap-datetimepicker by @tarruda, which applies a different pattern to make the date to string conversion. He does not release any documentation. Here is the related part of the source code:

    dd: {property: 'UTCDate', getPattern: function() { return '(0?[1-9]|[1-2][0-9]|3[0-1])\\b';}},
    MM: {property: 'UTCMonth', getPattern: function() {return '(0?[1-9]|1[0-2])\\b';}},
    yy: {property: 'UTCYear', getPattern: function() {return '(\\d{2})\\b'}},
    yyyy: {property: 'UTCFullYear', getPattern: function() {return '(\\d{4})\\b';}},
    hh: {property: 'UTCHours', getPattern: function() {return '(0?[0-9]|1[0-9]|2[0-3])\\b';}},
    mm: {property: 'UTCMinutes', getPattern: function() {return '(0?[0-9]|[1-5][0-9])\\b';}},
    ss: {property: 'UTCSeconds', getPattern: function() {return '(0?[0-9]|[1-5][0-9])\\b';}},
    ms: {property: 'UTCMilliseconds', getPattern: function() {return '([0-9]{1,3})\\b';}},
    HH: {property: 'Hours12', getPattern: function() {return '(0?[1-9]|1[0-2])\\b';}},
    PP: {property: 'Period12', getPattern: function() {return '(AM|PM|am|pm|Am|aM|Pm|pM)\\b';}}

For more details of usage

You can find a demo application using the datetimepicker-rails gem here

See the documentation & excellent demos provided by plugin's authors:

  1. for current version: by @Eonasdan the documentation is here,

  2. for version v1.0.0: by @tarruda the documentation is here.


  1. Fork it.
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request (PR request need to be submitted to the development branch)
Something went wrong with that request. Please try again.