No, but yes. The spirit of this is clock is not to be a predictor of your lifespan, but rather a reminder of the time you have left. This means that you can’t easily change the end age because it’s meant to always count down. That being said, if you really want a different end age, you can put in a request when choosing your rewards and I’ll program it to whatever you want. The source code is also available so all you need is a computer and the free Arduino software to change whatever you want.