how can i order the category by date

This may be a quick and simple fix for someone but i want to be able to sort by ‘ASC’ OR ‘DESC’

This isn’t my markup but here is the loop i want to change just not sure how. I read the query wordpress doc but couldn’t figure out where to put ‘ORDER' => 'ASC'

Do i need to reset the WP QUERY? From what I read you only need to reset the query if you have multiple loops. Am I correct?

<?php if (have_posts()) : ?>
                <?php while (have_posts()) : the_post(); ?>
                    <article class="post">
                        <div class="panel panel-default">
                            <div class="panel-body">
                                <h3 class="post-title"><a href="<?php the_permalink() ?>" class="transicion"><?php the_title(); ?></a></h3>
                                <div class="row">
                                    <div class="col-lg-6">
                                        <?php echo '<a href="', get_permalink(), '">';
                                            if ( has_post_thumbnail() ) {
                                                the_post_thumbnail('blog_image', array('class' => "attachment-$size, imageborder img-responsive"));
                                         echo '</a>'; 
                                    <div class="col-lg-6">
                                        <?php echo  excerpt(60); ?>
                            <div class="panel-footer">
                                <div class="row">
                                    <div class="col-lg-10 col-md-9 col-sm-8">
                                        <i class="fa fa-clock-o"></i> <?php the_date(); ?> 
                                        <i class="fa fa-folder-open"></i> <?php the_category(', '); ?>.
                                    <div class="col-lg-2 col-md-3 col-sm-4">
                                        <a href="<?php the_permalink() ?>" class="pull-right">Read more &raquo;</a>
                    </article> <!-- post -->
                <?php endwhile;?>
            <?php else : ?>
                <h2 class="post-title">No entries found</h2>
                <p>Not found anything that criteria. Try searching again or use the menu to navigate the site.</p>
                <?php get_search_form(); ?>
            <?php endif; ?>

Solutions Collecting From Web of "how can i order the category by date"

When the instance of WP_Query is not a variable on the PHP file you are working on it tends to be the “main” query and to edit this instance of the WP_Query you will need to Hook to the pre_get_posts action and change what you need there. Here is an Exemple:

add_action( 'pre_get_posts', 'q166401_pre_get_posts', 10, 1 );

 * On this case I will filter only the Home and the main query
 * @param  WP_Query $query The query object
function q166401_pre_query( $query ){
    // Stop this function when it's not Home or it's not the main query
    if ( ! $query->is_home() || ! $query->is_main_query() ) {

    // Here you will set the filters you want
    $query->set( 'order', 'ASC' );

If you have any problems referrer to the codex page related to this hook.