When does the Center close for a holiday? The Center is open all year, from Monday through Friday, from 7:00 am to 6:30 pm, unless the B-MS Lawrenceville facility is closed. The Center is closed for all Bristol-Myers Squibb holidays throughout the year. If the B-MS Lawrenceville facility closes early or opens late due to inclement weather, the Center will close one hour after BMS closes, and open when BMS opens. If B-MS Lawrenceville closes for any reason other than inclement weather, such as the day before a holiday, the Center will close promptly at 5:00 pm.