default value in django forms

I am trying to have a default value for some fields in the form:

<div class="form-group">
 <div class="input-group">
  <span class="input-group-addon"><i class="glyphicon glyphicon-envelope color-blue"></i></span> 
    <input type="text" name="record_date" class="form-control" initial="{{timezone.now}}" 
         placeholder="Current Date"  required id="id_record_date">
 </div>
</div>

the form field is empty, why is that?

Are you passing timezone in the context to be rendered in the template?

yes i am using the timezone