When to apply UK student Visa and How long we can stay?
When to apply:
When you can apply depends on whether you’re applying from inside or outside the UK.
Applying from outside the UK
The earliest you can apply for a visa is 6 months before you start your course.
You’ll usually get a decision on your visa within 3 weeks.
Applying from inside the UK
The earliest you can apply is 3 months before your course starts.
You must apply before your current visa expires. Your new course must begin within 28 days of your current visa expiring.
You’ll usually get a decision within 8 weeks.
How long you can stay
How long you can stay depends on the length of your course and what study you’ve already completed in the UK.
If you’re 18 or over and your course is at degree level, you can usually stay in the UK for up to 5 years. If it’s below degree level, you can usually stay in the UK for up to 2 years.
https://www.gov.uk/student-visa#:~:text=How%20long%20you%20can%20stay,for%20up%20to%202%20years.