How to set the screen lock time for vivo mobile phones?

If you mean how to set the automatic screen lock time:

In phone settings-display and brightness-automatic screen lock, you can select the required automatic screen lock time.

Some models need to enter Settings-More Settings-Auto Screen Lock.

For Android 12 and above, when the screen is placed on the desktop face down, the screen will be turned off in advance to prevent accidental touch and save power.

If you have more questions, you can enter vivo official website-My-Online Customer Service-Sliding Bottom-Online Customer Service-Enter Manual Customer Service and enter the consultation.