In Thomas Jefferson Univ. Hosp. v. Workmen's Compensation Appeal Board (Cattalo), the claimant was injured at 8:15 a.m., approximately 15 minutes prior to the time that she was required to sign in, when she fell down a flight of stairs while walking between two buildings. This Court determined that 15 minutes before the start of her shift was a reasonable amount of time to be on the employer's premises and that the claimant was where she was required to be in order to obtain parking tokens to park in the employer's parking lot. As a result, the Court affirmed the decision that the claimant's injury was compensable.