It may make more sense if viewed like this
UK time Mudcat
Noon 12:00 PM 7:00 AM
1:00 PM 8:00 AM
2:00 PM 9:00 AM
3:00 PM 10:00 AM
4:00 PM 11:00 AM
5:00 PM 12:00 PM
6:00 PM 1:00 PM
7:00 PM 2:00 PM
8:00 PM 3:00 PM
9:00 PM 4:00 PM
10:00 PM 5:00 PM
11:00 PM 6:00 PM
Midnight12:00 AM 7:00 PM
1:00 AM 8:00 PM
2:00 AM 9:00 PM
3:00 AM 10:00 PM
4:00 AM 11:00 PM
5:00 AM 12:00 AM
6:00 AM 1:00 AM
7:00 AM 2:00 AM
8:00 AM 3:00 AM
9:00 AM 4:00 AM
10:00 AM 5:00 AM
11:00 AM 6:00 AM