Grand Rapids時間
02:00:07
日出: 08:03:54 
日落: 17:46:0915:00:07
10:00:07
04:00:07
12:30:07
01:00:07
15:00:07
12:00:07
15:00:07
15:00:07
12:30:07
10:00:07
15:00:07
13:00:07
16:00:07
04:00:07
Grand Rapids與主要城市的時差
+7
+7
+7
+7
+6
+6
+6
+6
+6
+6
+6
+5
+5
+2
+2
+2
+2
+1
+0
+0
+0
-1
-3