The following is a timeline of the presidency of Barack Obama from his inauguration as the 44th president of the United States on January 20, 2009, to December 31, 2009. For his time as president-elect, see the presidential transition of Barack Obama; for a detailed account of his first months in office, see first 100 days of Barack Obama's presidency; for a complete itinerary of his travels, see list of presidential trips made by Barack Obama.