From an update in the exec lounge sticky:

"I remember people asking about the lounge in this hotel a while back. Yes, there are the usually hard liquor, red and white wines, and local beers.
The lounge opens 7 days a week from 2:30 pm to 9:30 pm.
2:30 pm - 5:30 pm: Afternoon tea, light snacks, sweets, and local fruits are provided.
5:30 pm - 7:30 pm: Happy hours, 4 to 5 entries, pizza, bread, and a variety of cheeses are provided.
7:30 pm -9:30 pm: Drinks remain available along with nuts, cookies, and fruits.
24-hour accessible with keycard for coffee, water, soda, and fruits.
This is one of the better lounges I have been to."

Presumably breakfast is in the restaurant since the lounge is open aft/eve.