which is derived from astrological prediction of the time Krishna gave his knowledge to Arjuna just before the start of the war. The Mahabharata war was said to happen during 3137 B.C.Because of this the overall time order of this lostbelt is still unknown.
The Yuga cycle is not following its proper time order because of lostbelt king forcing the passage of Yuga(s) in days. Even though this is a hypothesis based on approximation, Arjuna must have absorbed Krishna after the Mahabharata war at the start of Kali Yuga at 10800 Deva Vatsara and took 1 whole Kali Yuga to absorb rest of the Gods finishing at 11,900 Deva Vatsara, just 100 Deva Vatsara before the end of Chatur Yuga deviating from proper history.Mahabharata's end is the end of Dwapara Yuga and the start of Kali Yuga which fits the storyline and deviation from Greater History of Man of this lostbelt.There are 14 Manvantaras after which Mahāpralaya comes and all of universe is destroyed and recreated (which is a reference to Arjuna (Alter)'s Noble Phantasm). After that lower gods are refreshed, new lower gods are appointed, old humanity is completely destroyed and new humanity starts from a new father (Manu) on Earth. These four Yugas keeps repeating again and again for 71 times.11900 is assumed to be Deva Vatsara because Yugas are counted in Deva Vatsara under Hinduism with Chatur (four) Yuga spanning over 12,000 Deva Vatsaras (Satya Yuga is 4,800 Deva-Vatsaras, Treta Yuga is 3,600 Deva-Vatsaras, Dwapara Yuga is 2,400 Deva-Vatsaras long, and Kali-yuga is 1,200 Deva-Vatsaras long).Deva Vatsara translates to Year of Gods which is based on the interpretation that time flows differently for Gods. However, its era can be considered as 11900 Deva Vatsara which is just before end of Kali Yuga.