I don't know how clock really works, and if it actually works because I get the impression that sometimes you are totally visible as you see your team-mates in clock, and sometimes you aren't. Either way enemies can definitely see you very easily sometimes so it's probably not working as it's meant to.... or if it is, then it's pretty useless.
You are always on the blue team as it happens, but the enemies see you as red on their screen. Similarly the enemies are actually blue on their screens as well, but you see them as red.