The WSA console and your support interface uses UTC for time. However, the public is more used to 12hr format in their own timezone.
It's easy enough to figure this out, and you can apply the time offset in your head, but I think it would be useful to display the current time in UTC to the user. This should be in a small box somewhere in each interface. Perhaps in the console you only need it on the first page.
This will give users a bearing on their current orientation to UTC regardless of skill level.
I believe you should continue using UTC throughout your interfaces as trying to figuring out what timezone systems or reports are in always bugs me. This is especially important for those who travel frequently or use remote access VDI solutions that may be in a different timezone.
Also, yes, people could just run their own UTC clocks locally but I don't think that's a solution for the common person.
tl;dr time zones are evil and Webroot is right to use UTC but should make it simpler by putting in a UTC clock