This is the most frequently asked question. The total age of Kali Yuga is 4,32,000 years. However, due to the accrued sins and misdeeds of humanity, the age will be reduced to mere 5,000 years. Lord Shree Krishna described the major sins and the years by which Kali Yuga's lifespan is reduced:
Due to lying: 5,000 years · Due to bathing naked in the Ganges: 12,000 years · Due to a Brahmin making love with people of another caste: 30,000 years · From betraying a friend: 6,000 years · Due to not worshipping the idol of Lord Vishnu: 17,000 years · Due to not worshipping Mother Tulsi Devi: 5,000 years · Due to not serving the guest: 6,000 years · From betraying one's brother: 40,000 years · Due to consumption of forbidden foods (meat etc.): 8,000 years · Due to usurping others' wealth: 10,000 years · From cow slaughter: 1,00,000 years · By misusing charity: 14,000 years · By doing wrongs to widows: 24,000 years · From killing creatures: 11,000 years · By making love disobeying the rules of caste and creed: 12,000 years · From feticide: 7,000 years · From killing women: 32,000 years · Due to illegally possessing land meant for cow grazing and crematorium: 40,000 years · From abducting one's mother: 5,000 years · From betraying others: 40,000 years · Due to patricide, matricide and other sins: 3,000 years.
In this way, 4,27,000 years are deducted from Kali Yuga's 4,32,000 years — reducing it to just 5,000 years. Great Sage Achyutananda Das also writes in his Malika treatise 'Moh Kalpa' that just as Ravana, despite receiving a boon of 2,688 years of life, lived only a quarter of it due to his sins, similarly Kali Yuga will be reduced to only 5,000 years owing to the varied sins of humans. As per Bhavishya Malika, Lord Kalki has already incarnated in Odisha, India between 2005–2007.