public/components/date-time-picker/date-time-picker.html

<label class="date-time-picker__label" for="{{dateTimePicker.textInputId}}" ng-if="label"
    >{{ label }}
    <span class="date-time-picker__help-text" ng-if="helpText">{{ helpText == 'true' && 'e.g. today 3pm, tomorrow 15:00, tuesday next week 18:00, 2014-08-14' || helpText }}</span>
</label>
<span class="date-time-picker__help-text" ng-if="!label && helpText">{{ helpText == 'true' && 'e.g. today 3pm, tomorrow 15:00, tuesday next week 18:00, 2014-08-14' || helpText }}</span>
<div class="date-time-picker__group input-group">
    <input class="date-time-picker__text-input form-control" type="text" placeholder="{{ placeholderText }}" wf-date-time-field id="{{dateTimePicker.textInputId}}" name="due" wf-on-cancel="onCancel()" wf-on-update="onUpdate()" wf-on-submit="onSubmit()" wf-update-on="{{updateOn}}" wf-cancel-on="{{cancelOn}}" ng-class="{'input-sm': small}">
    <div dropdown id="{{dateTimePicker.dropDownId}}" class="input-group-btn">
        <button type="button" id="{{dateTimePicker.dropDownButtonId}}" class="btn btn-default dropdown-toggle date-time-picker__dropdown" ng-class="{'btn-sm': small}">
            <i class="glyphicon glyphicon-calendar"></i>
        </button>
        <ul class="dropdown-menu pull-right" role="menu">
            <datetimepicker class="date-time-picker__dropdown-picker" ng-model="datePickerValue" on-set-time="dateTimePicker.onDatePicked(newDate)" data-datetimepicker-config="_config"></datetimepicker>
        </ul>
        <button type="button" ng-click="onCancel()" class="btn btn-default" ng-class="{'btn-sm': small}">
            <i class="glyphicon glyphicon-remove"></i>
        </button>
    </div>
</div>
<span class="help-block" ng-class="{'small': small}">{{ dateValue | wfLocaliseDateTime:$root.globalSettings.location | wfFormatDateTime:'ddd D MMM YYYY HH:mm z' }}</span>