The name Kali comes from kāla, which means black, time, death, lord of death. Since Shiva is called Kāla— the eternal time — the name of Kālī, his consort, also means "Time" or "Death" (as in "time has come"). Hence, Kāli is the Goddess of Time, Change, Power and Destruction. Although sometimes presented as dark and violent, her earliest incarnation as a figure of annihilation of evil forces still has some influence.
Kali - Come, Mother, come! For terror is Thy name, Death is in Thy breath, And the vibration of your every step Destroys a world for sempre.Vieni, Mother, come! Mother looks at who has the courage to love the pain and embrace the form of death, Dancing in the dance of destruction. Vivekananada http://www.ilcerchiodellaluna.it/central_dee_kali.htm