Confusion on the 30 day rule for F1 visas

[malfidog 0]

Hi there everyone, new to the forum but just got my F1 visa interview done and the officer said I can enter within 30 days of my start time which is January 13, but I have an issue because everyone assumes thats a month in advance which would be December 14 but my advisor said I could enter on the 13th, Im confused because counting the days I count 31 from December 13 to January 13, but she says I can enter on the 13th, has my advisor got it wrong? Or is she correct and I could enter on the 13th, what would you guys recommend. Excited to study in the US, got accepted to University of Toledo.

Thanks all.

[Boiler 45,558]

30 days is sometimes a month, but not in December.

[jan22 3,056]

It's 30 days from the start date on the I-20....and that is calendar days. That may (or may not) be the same date you are saying is your start day -- so check the I-20 and count!