Grottaferrataの時間
19:18:52
日の出: 07:35:37 
日没: 16:45:1702:18:52
21:18:52
15:18:52
23:48:52
12:18:52
02:18:52
23:18:52
02:18:52
02:18:52
23:48:52
21:18:52
02:18:52
00:18:52
03:18:52
15:18:52
Grottaferrataと主要都市の時差
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+6
+6
+6
+5.5
+5
+5
+5
+5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4.5
+4
+4
+3.5
+3
+2.5
+2
+2
+2
+2
+2
+2
+2
+1
+1
+1
+1
+0
+0
+0
+0
+0
+0
+0
-1
-1
-4
-4
-4
-4
-5
-6
-6
-6
-7
-9