美国AMS系统将于这周末Saturday 1/23 9:00pm ET to Sunday 1/24 5:00am ET，即北京时间周日早上10点到下午6点进行系统维护， 各位请注意截单时间 尽早申报。

This is a reminder that there will be an Extended ACE PRODUCTION Maintenance window this weekend of January 23, 2021, for CBP ACE internal maintenance that will start ONE hour Earlier and end ONE hour Later than normal -- Saturday 1/23 9:00pm ET to Sunday 1/24 5:00am ET.