the_date() vs the_time()

Jangan gunakan the_date() di dalam loop atau archive.

Berikut pesan yang sudah ada di WordPress Codex:

When there are multiple posts on a page published under the SAME DAY, the_date() only displays the date for the first post (that is, the first instance of the_date()). To repeat the date for posts published under the same day, you should use the Template Tag the_time() or get_the_date() (since 3.0) with a date-specific format string.

Use <?php the_time(get_option('date_format')); ?> to add the date set in the admin interface.

Sumber lain: http://wordpress.org/support/topic/the_date-sometimes-doesnt-display