Muting serves/channels, etc

The current options to mute a server, channel, etc. are:

- 15 minutes

- 1 hour

- 3 hours

- 8 hours 

-24 hours OR

- Until I turn it back on

It would be nice if there was a 12 hour option, but also to choose a specific time. 

For example, I'm going to bed at 10PM one night, and I'd like to set it up as to unmute at 8AM the next morning. I would use this feature ALLLLLLL the time!!!