Kalki - Tenth Avtar which is yet to appear on earth

The tenth Avatar, Kalki, ("Eternity", or "time", or "The Destroyer of foulness"), is yet to appear on the earth which will be final Maha Avtar of Lord Vishnu ,And it is expected to appear at the end of Kali Yuga, the time period in which we currently exist, which will end in the year 428899 CE.God will appear in the form of horse