Heure à Grottaferrata
09:20:47
Lever du soleil: 07:36:39 
Coucher de soleil: 16:50:0116:20:47
11:20:47
05:20:47
13:50:47
02:20:47
16:20:47
13:20:47
16:20:47
16:20:47
13:50:47
11:20:47
16:20:47
14:20:47
17:20:47
05:20:47
Décalage horaire entre Grottaferrata et les grandes villes
+7
+7
+7
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+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
+7
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+7
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+7
+7
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+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