If you plan to send a holiday packages to troops stationed overseas you will want to get it in the mail soon.
Monday is the first deadline, according to the US Post Office.
November 13th is the deadline to get the most economical shipping option for parcel post.
The post office has 80 military installations worldwide.
Officials say you need to ship early to ensure packages reach their destination for the holidays.
For more shipping dates and options, visit the United States Postal Service website.