Calendar C will be the traditional calendar with the start date as August 13 and ending May 21st. Start times will remain the same, but elementary and middle schools will have different release times.
Incoming Senate Majority Leader John Thune told senators on Thursday to "get ready to work." Republicans will control the House, Senate, and White House next year.
House Majority Leader Steve Scalise said the new calendar reflects the "ambitious agenda" that President-elect Donald Trump ran on in his election campaign.