diff --git a/generate_calendar_dates.php b/generate_calendar_dates.php
index 211dcf7..4e11628 100644
--- a/generate_calendar_dates.php
+++ b/generate_calendar_dates.php
@@ -8,7 +8,7 @@
 /*
 	Date of the Monday of the first academic week of the year. Teaching weeks start on Monday, so this is a convenient base point to start from. This will need to be updated annually.
 */
-$first_monday = new DateTime( "2012-12-31" );
+$first_monday = new DateTime( "2013-12-30" );
 
 
 /*
@@ -46,8 +46,8 @@
 		'last_week'   => 22,
 		'break_weeks' => array(
 			array(
-		    	'break_starts' => 15,
-		        'break_ends'  => 15,
+		    	'break_starts' => 17,
+		        'break_ends'  => 17,
 		    ),
 		),
 	),
@@ -66,12 +66,12 @@
 		'last_week'   => 41,
 		'break_weeks' => array(
 			array(
-		    	'break_starts' => 23,
-		        'break_ends'  => 27,
+		    	'break_starts' => 17,
+		        'break_ends'  => 17,
 		    ),
 			array(
-		    	'break_starts' => 15,
-		        'break_ends'  => 15,
+		    	'break_starts' => 23,
+		        'break_ends'  => 27,
 		    ),
 			array(
 		    	'break_starts' => 35,