您好,雇主撤销的日期开始您会有60天的grace period,具体可以参考一下移民局的说明:If an H-1B petition filed on behalf of an F-1 student covered by Cap-Gap is denied, rejected, revoked, or withdrawn, the student will have the standard 60-day grace period (from the date of the notification of the denial, rejection, revocation, or withdrawal of the petition) to prepare for and depart the United States.
如果您还有其他的问题,欢迎随时致电800-685-NYIS (6947)。