Duphpherer: Does WGT observe DST
Depends at which clock you're looking at - there are three, unless they changed recently.
1) is the forum and tournament clock, running on PT / PDT, right out of San Francisco.
2) is the CDP bonus clock, running on UTC = GMT = Zulu time. It doesn't change, but the DST flips may be disturbing - especially in the Americas.
This may have caused your bonus mishap.
3) is your local time, which comes into play in CC tournaments. If one starts on 6:54 h of your local time, it will finish on 6:54 h the other day. For someone in a different time zone, the time will be different - adapted.