Time Piedras Negras
21:07:43
Sunrise: 07:16:52 
Sunset: 20:11:1310:07:43
05:07:43
23:07:43
07:37:43
20:07:43
10:07:43
07:07:43
10:07:43
10:07:43
07:37:43
05:07:43
10:07:43
08:07:43
11:07:43
23:07:43
Time difference between Piedras Negras and major cities
+7
+7
+7
+7
+6
+6
+6
+6
+6
+6
+5
+2
+2
+2
+1
+1
+1
+0
+0
-1
-2