Riga時間
16:34:17
日出: 08:59:55 
日落: 15:43:4622:34:17
17:34:17
11:34:17
20:04:17
08:34:17
22:34:17
19:34:17
22:34:17
22:34:17
20:04:17
17:34:17
22:34:17
20:34:17
23:34:17
11:34:17
Riga與主要城市的時差
16:34:17
-7
09:34:17
+7
+7
+7
+7
+7
+6
+6
+6
+6
+6
+6
+6
+6
+6
+6
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+6
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+6
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+4.5
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+4
+3.5
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+3.5
+3.5
+3.5
+3.5
+3.5
+3.5
+3.5
+3.5
+3
+3
+2.5
+2
+1.5
+1
+1
+1
+1
+1
+1
+1
+0
+0
+0
+0
-1
-1
-1
-1
-1
-1
-1
-2
-2
-5
-5
-5
-5
-6
-7
-7
-7
-8
-10