28 hours a week? Damn.
Restaurants are notorious for cutting hours during the off season (post-Christmas through Memorial Day)... I remember getting my 40+ hours cut to 32 -- that was the benchmark at the time. Generally, things picked up in the summer and through Labor Day until the Thanksgiving/Christmas holidays and you could come to expect reduced schedules after New Year's Eve. A lot of people took the opportunity to take their vacations then. I will admit, I worked for Darden and never had less than a 40-hour week unless I asked for it.