Langfang時間
12:16:17
日出: 07:31:27 
日落: 17:14:1612:16:17
07:16:17
01:16:17
09:46:17
22:16:17
12:16:17
09:16:17
12:16:17
12:16:17
09:46:17
07:16:17
12:16:17
10:16:17
13:16:17
01:16:17
Langfang與主要城市的時差
+3
+3
+1
+1
+1
+1
+1
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
+0
-1
-1
-1
-2
-2
-2
-2
-3
-3
-4
-5
-5
-5
-5
-5
-5
-5
-6
-6
-6
-6
-7
-7
-7
-7
-7
-7
-7
-8
-8
-11
-11
-11
-11
-12