about period

DEAR Chisty, 

Thanks for your concern,

Base on your Schedule please apply for 1 month single tourist visa. 

Please follow the link to apply visa online with us https://www.vietnam-evisa.org/apply-visa.html

Apply visa online, You will get visa stamp on the passport upon arrival, All you need to do is fill your information in the form and make payment online.
After that, we will send You the approval letter via email, please print it out to board the plane and use it to get visa stamp on the passport upon arrival.

PLease apply the arrival date as the date you will arrive vietnam, You can arrive vietnam after the arrival date as normal.

Best Regards.
Stepfanno Tran (Mr. )