Night Saver

The Night Saver is an block obtainable through the Quartz collection and unlocked at, that when placed on a private island it will cause it to always be night time. The inverse is the Day Saver. After placing, it can be right-clicked to set the exact time of night (cannot be day).

The times a Night Saver can be set to are as follows:

Uses
This can be used to spawn nighttime mobs on your island such as Bats in order to farm them more effectively.

Crafting
Requires Glass x3, Nether Quartz x15, and Brown Mushroom x3.

Trivia

 * If you have a Day Saver on your island as well as a Night Saver the effects cancel each other out.