NightMode в Android Market

NightMode (v. 1.2) Разработано Orby.es

Turns on/off the sounds of your phone during the night or whenever you want. NightMode allows you to set differents night modes according to your needs. You can set the days when you want to turn on your night Mode, activate just the vibrate mode and even set differents days for the same night mode so you can set one configuration for the weekend, another for your working days, holidays, etc.