No, snooze time in your device is preset to 10 minutes and it is not user-definable.
- How do I update the software on my Series 30+ phone?
- How can I recover/reset/restore my phone software?
- What should I do to prepare my phone for a software update?
- 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)?