Grand Rapids時間
03:27:08
日出: 07:09:34 
日落: 18:38:0716:27:08
11:27:08
05:27:08
13:57:08
02:27:08
16:27:08
13:27:08
16:27:08
16:27:08
13:57:08
11:27:08
16:27:08
14:27:08
17:27:08
05:27:08
Grand Rapids與主要城市的時差
+7
+7
+7
+7
+6
+6
+6
+6
+6
+6
+5
+5
+5
+2
+2
+2
+2
+1
+0
+0
+0
-1
-3