It depends on the situation:

1. I am a graduate student in the UK, and my visa is for one year, five months and two days.

2. The undergraduate program I studied at Guangzhou Foreign Studies University and the UK is a cooperative education program (2+1 program), and the visa period is one year and seven days.

3. For specific information about going to the UK to study for three years as an undergraduate directly after graduating from high school, you should ask the student center of the school you are going to: student centre. When my high school classmate went there a few years ago, he signed a three-year one-time contract.

4. When studying for a PhD in the UK, all the PhDs I know lasted for three and a half years. If there is not enough time to graduate by then, continue to renew. (It is more convenient to renew in the UK than in China. You can go directly to the embassy in London to renew)

5. I don’t know the visa time for middle schools. You can ask the school you want to go to. . .

Additional explanation:

As long as you don’t commit any crime, the police will generally not cause trouble for you. . .

Even if your visa expires, the British government police will not take the initiative to find you. . .

You can avoid being caught by the police by changing your place to live.

This is a method that my undergraduate classmate personally tried. His one-year visa was brought to the UK for three years. . .

However, this method has flaws:

If you are black (and undocumented), once discovered, all your property in the UK will be confiscated and sent back home!

There are examples.

My classmate took the initiative to return to China last month because he was afraid of being caught. Before returning to China, he transferred his property in the UK to another classmate and asked that classmate to send it home. . . Only then did he keep the money he had earned through hard work in the UK. . .