The annual lottery, which usually begins on March 1, will now open March 13.
Last week, the park announced delays because of its transition to a new contract provider.
All hikers are required to have permits to ascend the sub-dome steps and the Half Dome cables seven days a week.
During the preseason lottery, 225 permits are available for each day the cables are up. The lottery closes on March 31 at 9 p.m.
Click here for application information.