Grand Rapidsの時間
15:31:54
日の出: 07:36:37 
日没: 18:16:3604:31:54
23:31:54
17:31:54
02:01:54
14:31:54
04:31:54
01:31:54
04:31:54
04:31:54
02:01:54
23:31:54
04:31:54
02:31:54
05:31:54
17:31:54
Grand Rapidsと主要都市の時差
+7
+7
+7
+7
+6
+6
+6
+6
+6
+6
+5
+5
+5
+2
+2
+2
+2
+1
+0
+0
+0
-1
-3