<div class="custom_schedule_details">
    <span class="date">
        <?php echo tribe_get_start_date( null, false, 'j' ) ?>
    </span>
    <span class="month">
        <?php echo tribe_get_start_date( null, false, 'F' ) ?>
    </span>
    <span class="year">
        <?php echo tribe_get_start_date( null, false, 'Y' ) ?>
    </span>
</div>