In the time honored tradition of politicians that recognize an issue must be addressed but lack any understanding to how to do so, Clinton calls for a study.  As explained on her campaign website:

As president, one of Hillary's first official actions would be to convene the Joint Chiefs of Staff, her Secretary of Defense, and her National Security Council. She would direct them to draw up a clear, viable plan to bring our troops home starting with the first 60 days of her Administration.

Clinton doesn't say the U.S. will begin withdrawing from Iraq in 60 days.  Instead, Clinton simply asks the military and other advisers to give her a plan within two months.

Clinton has never called for a prompt and complete withdrawal of our forces from Iraq.  When questioned on whether she will commit to specific date for the end of the U.S. occupation of Iraq, as noted by Helen Thomas, Clinton reverts to "her usual cautious equivocation."  She leaves open the possibility our troops will remain until 2013.  David Broder accurately commented that Clinton plays "dodgeball" on the question of leaving Iraq:

During the debate, she rarely came out of a defensive crouch, as if determined to protect her favored position. Answering the first question, she said her goal would be to withdraw all American troops from Iraq by 2013, but "it is very difficult to know what we are going to be inheriting" from the Bush administration, so she cannot make any pledge -- as Richardson and others feel free to do. Troops might be needed for counterterrorism work for many years.

Again, Clinton has no exit strategy for the U.S. from Iraq.  She voted for the war, refused to vote for a resolution requiring Bush to get authorization from Congress to invade Iraq if he did not receive support from the U.N., repeatedly voted for spending bills for the war and lack any specific plan to get the U.S out of Iraq.