回复：回复：请教：P老师、巴老师问题：H签证的开始时间怎么算？

So, you had better ask your employer to indicate the LCA start date and the H1 start date on the I-129 on a certain date 5 to 6 months later (less than 6 months). Thus, you can use your OPT for more time to save your 6-year H1 period.