Time Stone

Housed in the Eye of Agamotto by Earth's first sorcerer Agamotto, a Master of the Mystic Arts can use the Time Stone (green) to alter and manipulate time. In Doctor Strange, Dr. Stephen Strange finds the Eye of Agamotto and learns how to use it to save the Earth from Dormammu by trapping him in a time loop until the demon abandons his plans for Earth. Strange returns the Eye of Agamotto to the Masters of the Mystic Arts' secret compound Kamar-Taj in Kathmandu, Nepal, though he is seen wearing it again in the mid-credits scene, which takes place during Thor: Ragnarok.