The Kalachakra Tantra (Skt. kālacakratantra; Tib. དུས་ཀྱི་འཁོར་ལོ་, dükyi khorlo; Wyl. dus kyi 'khor lo) is one of the main tantras practised by the Sarma or New Translations schools. The name means wheel of time or time-cycles. It has a unique presentation of cosmology. There's a tradition of offering this empowerment to large public audiences. His Holiness the Dalai Lama has given the transmission of the Kalachakra many times around the world for the sake of world peace.
- The Dalai Lama and Jeffrey Hopkins, The Kalachakra Tantra: Rite of Initiation, Boston, Wisdom Publications, 1989, ISBN 978-0861711512