Index: src/wp-admin/includes/template.php
===================================================================
--- src/wp-admin/includes/template.php	(revision 33338)
+++ src/wp-admin/includes/template.php	(working copy)
@@ -784,9 +784,10 @@
 	$month = '<label><span class="screen-reader-text">' . __( 'Month' ) . '</span><select ' . ( $multi ? '' : 'id="mm" ' ) . 'name="mm"' . $tab_index_attribute . ">\n";
 	for ( $i = 1; $i < 13; $i = $i +1 ) {
 		$monthnum = zeroise($i, 2);
-		$month .= "\t\t\t" . '<option value="' . $monthnum . '" ' . selected( $monthnum, $mm, false ) . '>';
+		$monthtext = $wp_locale->get_month_abbrev( $wp_locale->get_month( $i ) );
+		$month .= "\t\t\t" . '<option value="' . $monthnum . '" data-text="' . $monthtext . '" ' . selected( $monthnum, $mm, false ) . '>';
 		/* translators: 1: month number (01, 02, etc.), 2: month abbreviation */
-		$month .= sprintf( __( '%1$s-%2$s' ), $monthnum, $wp_locale->get_month_abbrev( $wp_locale->get_month( $i ) ) ) . "</option>\n";
+		$month .= sprintf( __( '%1$s-%2$s' ), $monthnum, $monthtext ) . "</option>\n";
 	}
 	$month .= '</select></label>';
 
@@ -797,7 +798,7 @@
 
 	echo '<div class="timestamp-wrap">';
 	/* translators: 1: month, 2: day, 3: year, 4: hour, 5: minute */
-	printf( __( '%1$s %2$s, %3$s @ %4$s : %5$s' ), $month, $day, $year, $hour, $minute );
+	printf( __( '%1$s %2$s, %3$s @ %4$s:%5$s' ), $month, $day, $year, $hour, $minute );
 
 	echo '</div><input type="hidden" id="ss" name="ss" value="' . $ss . '" />';
 
Index: src/wp-admin/js/post.js
===================================================================
--- src/wp-admin/js/post.js	(revision 33338)
+++ src/wp-admin/js/post.js	(working copy)
@@ -558,8 +558,8 @@
 				$('#timestamp').html(stamp);
 			} else {
 				$('#timestamp').html(
-					publishOn + ' <b>' +
-					postL10n.dateFormat.replace( '%1$s', $('option[value="' + $('#mm').val() + '"]', '#mm').text() )
+					'\n' + publishOn + ' <b>' +
+					postL10n.dateFormat.replace( '%1$s', $( 'option[value="' + mm + '"]', '#mm' ).attr( 'data-text' ) )
 						.replace( '%2$s', jj )
 						.replace( '%3$s', aa )
 						.replace( '%4$s', hh )
Index: src/wp-includes/script-loader.php
===================================================================
--- src/wp-includes/script-loader.php	(revision 33338)
+++ src/wp-includes/script-loader.php	(working copy)
@@ -487,7 +487,7 @@
 			'publishOnFuture' =>  __('Schedule for:'),
 			'publishOnPast' => __('Published on:'),
 			/* translators: 1: month, 2: day, 3: year, 4: hour, 5: minute */
-			'dateFormat' => __('%1$s %2$s, %3$s @ %4$s : %5$s'),
+			'dateFormat' => __('%1$s %2$s, %3$s @ %4$s:%5$s'),
 			'showcomm' => __('Show more comments'),
 			'endcomm' => __('No more comments found.'),
 			'publish' => __('Publish'),