The entire process typically takes anywhere from six months to two or three years. There is a oneyear time limit to file a federal habeas corpus petition under 28 USC s.2254 (for state prisoners) or a motion under 28 USC s. The good news is that the statute's 365 day time limit often actually lasts much longer than 365 days after conviction. Federal habeas corpus is a procedure under which a federal court may review the legality of an individual's incarceration. Timing: The basic timing rule is one year from he date of the end of the state court process. One year isn't really correct though. It shall be returned within three days unless for good cause additional time, not exceeding 20 days, is allowed.