{# code for Page and Article is exactly the same #}
{% if article %}

    {#  Check which version of Pelican user is using.
        If it is <=3.3  than modified is a string
        If it is >3.3 than modified is a datetime object
    #}
    {% if article.locale_modified and article.modified %}

            {#  This check is necessary because modified is set to date by default.
                It should be displayed only if user has explicitly set it.
            #}
            {% if article.modified != article.date %}

            <h4>Last Updated</h4>
            {% set day = article.modified.strftime('%d')|int %}
            <time datetime="{{ article.modified.isoformat() }}">{{ article.modified.strftime('%b') }} {{ day }} {{- article.modified.strftime(', %Y') }}</time>

            {% endif %}

    {% elif article.modified %}

            <h4>Last Updated</h4>
            <div class="last-updated">{{ article.modified }}</div>

    {% endif %}

{# code for Page #}
{% elif page %}

    {% if page.locale_modified and page.modified %}

            {% if page.modified != page.date %}

            <h4>Last Updated</h4>
            {% set day = page.modified.strftime('%d')|int %}
            <time datetime="{{ page.modified.isoformat() }}">{{ page.modified.strftime('%b') }} {{ day }} {{- page.modified.strftime(', %Y') }}</time>

            {% endif %}

    {% elif page.modified %}

            <h4>Last Updated</h4>
            <div class="last-updated">{{ page.modified }}</div>

    {% endif %}


{% endif %}