diff --git a/src/time/time_test.go b/src/time/time_test.go
index dba8e0dadc..00ced4ba9b 100644
--- a/src/time/time_test.go
+++ b/src/time/time_test.go
@@ -575,6 +575,7 @@ var dateTests = []struct {
 	{2011, 3, 13, 1, 59, 59, 0, Local, 1300010399}, // 1:59:59 PST
 	{2011, 3, 13, 3, 0, 0, 0, Local, 1300010400},   // 3:00:00 PDT
 	{2011, 3, 13, 2, 30, 0, 0, Local, 1300008600},  // 2:30:00 PDT ≡ 1:30 PST
+	{2012, 12, 24, 0, 0, 0, 0, Local, 1356336000},  // Leap year
 
 	// Many names for Fri Nov 18 7:56:35 PST 2011
 	{2011, 11, 18, 7, 56, 35, 0, Local, 1321631795},                 // Nov 18 7:56:35