Time Gem

The  is a fictional cosmic artifact featured in comic books published by Marvel Comics. It also appeared in the Marvel Cinematic Universe series of films.

The is one of six cosmic relics that comprise the Infinity Stones. In the Marvel Cinematic Universe, the Infinity Stones were created by the Celestials and contain great power. It possesses the ability to manipulate the timestream. Along with the other five stones, the can be outfitted into the Infinity Gauntlet.