when did obama take office

Barack Obama took office as president of the United States on January 20, 2009.

Quick Scoop: When did Obama take office?

• Barack Obama was inaugurated as the 44th president on January 20, 2009.

• His presidency then continued until January 20, 2017.

• He had been elected in the 2008 election, defeating Republican candidate John McCain.

So if you’re just looking for the exact date for “when did Obama take office,” the key fact is:

• Inauguration / took office: January 20, 2009 (noon Eastern Time by constitutional tradition).

TL;DR: Barack Obama took office as U.S. president on January 20, 2009.

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