Duluth時間
20:00:12
日出: 07:23:17 
日落: 17:27:3009:00:12
04:00:12
22:00:12
06:30:12
19:00:12
09:00:12
06:00:12
09:00:12
09:00:12
06:30:12
04:00:12
09:00:12
07:00:12
10:00:12
22:00:12
Duluth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