Praia時間からNew York City時間への変換
07:47:59
-4
03:47:59
+7
+7
+7
+7
+6.5
+6.5
+6.5
+6.5
+6.5
+6.5
+6.5
+6.5
+6.5
+6.5
+6
+6
+5.5
+5
+4.5
+4
+4
+4
+4
+4
+4
+4
+3
+3
+3
+3
+2
+2
+2
+2
+2
+2
+2
+1
+1
-2
-2
-2
-2
-3
-4
-4
-4
-5
-7