Time Columbine
21:30:53
Sunrise: 07:18:27 
Sunset: 17:01:4812:30:53
07:30:53
01:30:53
10:00:53
22:30:53
12:30:53
09:30:53
12:30:53
12:30:53
10:00:53
07:30:53
12:30:53
10:30:53
13:30:53
01:30:53
Time difference between Columbine and major cities
+7
+7
+4
+4
+4
+4
+3
+2
+2
+2
+1
-1