How to add DOB on checkout page

Question

I want to add customer DOB field in billing address on checkout page, for this I have added below code :

<div class="field">
    <label for="billing:dob" class="required"><em>*</em><?php echo $this->__('Date Of Birth') ?></label>
    <div class="input-box">
        <input type="test" name="billing[dob]" id="billing:dob" value="<?php echo $this->escapeHtml($this->getAddress()->getDob()) ?>" title="<?php echo Mage::helper('core')->quoteEscape($this->__('Date Of Birth')) ?>" class="date-pick input-text validate-date required-entry" data-date-format="dd-mm-yyyy" />
    </div>
</div>

On place order billing address saved in customer but not DOB.

Am I doing something wrong? Is there any other way to do so?

Answer 1

You can do it via back-end

Configuration → Customers → Cusotmers Configuration → Name and Address Options

Then make changes in : Show Date of Birth = Optional or required

Note : It will also enable DOB field in billing and customer account registration.