No, snooze time in your device is preset to 10 minutes and it is not user-definable.
- Why my Nokia device does not ring when a specific number calls?
- How many contacts can be stored in the phone memory of my Nokia phone (Series 30)?
- Is it possible to change the alarm clock snooze time on my Nokia phone (Series 30)?
- How can I recover/reset/restore my phone software?
- How do I restore factory settings on my Nokia phone?