Yele Sambat (Devanagari: येले संबत् ) is the lunar calendar used by the Kirat community of Nepal. The year 3790 YE began on 15 January 2010. The Yele Sambat calendar is supposedly named after the legendary first Kirant king Yalambar. On 15 November 2009, Subash Chandra Nembang, Chairperson of the Constituent Assembly (CA) stressed the need for the Government of Nepal to recognize Kirant Yele Sambat and ensure that it would be included in the constitution as annex. On 15 January 2010, the Government of Nepal stated that it would formally recognise Yele Sambat. It is said that this calendar started when Kirat king Yalamber defeated Gopal dynasty in Kathmandu valley. The new year is celebrated as Maghe Sakranti in Nepal where people eat sweet potato and various kinds of Yam and Sel roti.
In the year 2013-14, Yalambar Foundation (kiratology research Center), Kathmandu published calendar (सिद्धान्तसारिणी नेपालपञ्चाङ्ग-पत्र, किरात येलेसंवत ३७९२, कलिगत ५०७३) depicting माघे सक्रान्ती as new year day to be celebrated by Kirati people. Coincidentally Magar and Tharu ethnic people from Nepal's also celebrate माघे सक्रान्ती as new year.
How the "Yele Sambat" Calculated:
1) According to Gopal Vamsawali 32 Kirat Kings ruled in Kathmandu valley for 1963 years and 8 months (See: किरात येले संवत अभिलेख, किरात येले संवत अध्ययन समन्वय समिति, २०१०, पृष्ठ – १३ र पृष्ठ – २२७को प्याराग्राफ १)। 2) Kirat rule ended and Licchavi rule started by Jaya Varma in SaKa Sambat 107. 3) 78 years of time period is added to convert Saka Sambat into AD i.e. Saka Sambat 107 + 78 years = 185AD. 4) Kirat Kings ruled 1963 years and 8 month. Deducting 185 from 1963 years 8 months = comes 1779.8AD which is the starting ruling year of first Kirati king Yalambar. 5) Now (in 2017) adding 1779.8AD and 2017AD = Comes out 3796 years 8 months.
Source. प्रडा जगदीशचन्द्र रेग्मी, नेपाली किरात जातिको गौरवपूर्ण इतिहासको परिप्रेक्षमा किरात येले संवतको प्रचलन तथा संवैधानिक उपक्रम, किरात येले संवत अध्ययन समन्वय समिति, २०१०, पृष्ठ १३ र पृष्ठ २२७)
List of Kirat Rulers
According to Gopa Vamsawali 32 Kirat Kings ruled kathmandu valley. List along their period is given below: 1) King Yelam - 90 years; 2) King Pelam - 81 years; 3) King Melam - 89 years; 4) King Changming - 42 years; 5) King Dhaskang - 37 years; 6) King Walungcha - 31 years 6 months; 7) King Hooting - 40 years 8 months; 8) King Hurma - 50 years; 9) King Tuske - 41 years 8 months; 10) King Prasaphung - 38 years 6 months; 11) King Pawa: - 46 years; 12) King Daasti - 40 years; 13) King Chamba - 71 years; 14) King Kangkang - 54 years; 15) King Swananda - 40 years 6 months; 16) King Phukong - 58 years; 17) King Singhu - 49 years 6 months; 18) King Julam - 73 years 3 months; 19) King Lukang - 40 years; 20) King Thoram - 71 years; 21) King Thuko - 83 years; 22) King Varmam - 73 years 6 months; 23) King Gungjung - 72 years 7 months; 24) King Puska - 81; 25) King Tyapami - 54 years; 26) King Mugmum - 58 years; 27) King Shasaru - 63 years; 28) King Gunam - 74 years; 29) King Khimbu - 76 years; 30) King Girijung - 81 years; 31) King Khuranja - 78 years; 32) King Khigu - 85 years.