 640 Money News at 10 and 40 brought to you by PenFed. Great rates for everyone. If you need coffee, a new 24-7 Starbucks is opening in Northern Virginia. The new store on Richmond Highway in Dumfries near the Princeton Woods development will be open 24 hours a day, 7 days a week and will be one of the largest veteran-owned Starbucks in the Mid-Atlantic.