Grand Rapids時間
09:36:08
日出: 07:14:36 
日落: 18:34:2522:36:08
17:36:08
11:36:08
20:06:08
08:36:08
22:36:08
19:36:08
22:36:08
22:36:08
20:06:08
17:36:08
22:36:08
20:36:08
23:36:08
11:36:08
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