It depends.
If the officers at the customs or at the main selecting postal office DON'T STEAL it, it takes 2 weeks or less. The only way to assure delivery is to register the mail.
If you send it cheap ($14.99 USPS First Class Mail International), you won't be able to track it and it most surely will be lost or literally: STOLEN.
how long dose it take standerd usps mail to be delivered from us to kuwait
USPS first class mail international 2-3 Weeks
5 days
It can take anywhere from a couple of days to several weeks. There are no guarantee's on priority mail during the holiday (USPS). The only guaranteed mail delivery is USPS Express Mail.
It shouldn't take too long
USPS can be 3 to 5 days. No mail on Sunday.
It depends where it is sent from.
3
According to the USPS it take 1 to 3 days for First Class Mail.
First-Class Priority mail from USPS is two days
USPS first class mail international 2-3 Weeks
3 days from USPS process day (usually same day you drop of at usps).