Also, Korea does not observe daylight savings, so during the winter months, we're an extra hour away. Mailing to Korea is also not difficult, but it is more complicated than standard domestic mail. If you are mailing packages or letters to the first mailing address, Heidi's APO, then it's as easy as any other domestic mail. The mail first goes to San Francisco where the Army takes over and delivers it to Korea.
Priority mail can get from Vermont, USA to Seoul, Korea in just under a week.
In addition, you will have to fill out a customs form listing the items and values of the contents. Also, this is not domestic mail, so you will need overseas postage.