Hello Holotable Heroes,
The current season of Grand Arena Championships started a day earlier than usual. This was not intended, and as such will not be a permanent change. We expect future seasons of GAC to revert to the previous schedule. Also worth noting, feats and rewards are unaffected by the early start date.
However, please note the start date for each round of this current season will begin a day earlier than you might be accustomed to (in this instance Sunday PT versus Monday PT), as we will not be interrupting or restarting the current season in order to prevent any unforeseen issues that could arise from doing so.