7/20晚上来的，网上I94写成7/21， 护照上的ENTRY STAMP是7/20. 合法离开的最后一日应该是1/19，对吧，ENTRY STAMP上的日期。
-The stamp should have indicated the dates of legal stay (from 7/20 to ....), shouldn't it?
我们要确保对的日期，因为要保证呆满183天可以退税。如果按网上的7/21日，就少了一天。但又怕改正后成为7/20进关，在1/19离开后，他们又犯同样错误在网上又写成1/20离开，那就在纸面上看来违法多呆一天，虽然实际上合法。
-The expiration date of the I-94 is the last date of legal stay, so you should leave on/before that date. As long as you leave on time, you will be fine. If you want to fix the entry date on the I-94, you need to go to the local CBP Deferred Inspections Office. Find the local CBP Office at this link:
