What is Custom Posting Times? 

By default, Twibble will tweet your content based on the frequency of your choosing, distributed evenly throughout a 24 hour day.

Sometimes, however, you may wish to concentrate your tweets during certain days, or even during certain times of certain days. This is something you can accomplish quickly and easily with Custom Posting Times.

* Custom Posting Times is available only with Twibble Pro and Twibble Infinite.