Manvantara

A Manvantara, in Hindu cosmology, is a cyclic period of time identifying the duration, reign, or age of a Manu, the progenitor of mankind. In each manvantara, seven Rishis, certain deities, an Indra, a Manu, and kings (sons of Manu) are created and perish. Each manvantara is distinguished by the Manu who rules/reigns over it, of which we are currently in the seventh manvantara of fourteen, which is ruled by Vaivasvata Manu.

wikipedia/en/Manvantara

A manvantara is a cosmic cycle in Hindu cosmology representing the lifespan of a Manu, the progenitor of humankind. Each manvantara consists of 71 cycles of the four yugas and lasts for approximately 306.72 million human years. There are 14 manvantaras in a “kalpa,” or a single day of Brahma.
Key features of a manvantara

Ruler: Each manvantara is ruled by a different Manu. The term “Manvantara” literally means “the duration of a Manu”.
Associated figures: A new Manu, a new Indra, a new group of gods, and a new group of seven sages (Saptarishis) are appointed in each manvantara.
Cyclical nature: Manvantaras highlight the cyclical nature of time in Hindu belief, with each period of creation and dissolution leading to the next.
Current manvantara: The current, seventh manvantara is ruled by Vaivasvata Manu.

Relationship to other cosmic time units

Kalpa: A kalpa, or “Day of Brahma,” is made up of 14 manvantaras.
Yuga: A manvantara contains 71 “Mahayugas,” which are cycles of the four yugas (Satya, Treta, Dvapara, and Kali).
- 1 Satya Yuga = 1,728,000 years
- 1 Treta Yuga = 1,296,000 years
- 1 Dvapara Yuga = 864,000 years
- 1 Kali Yuga = 432,000 years
- 1 Mahayuga = 4,320,000 years
Sandhikalas: These are transitional periods that occur between each manvantara and at the beginning and end of a kalpa.

AI responses may include mistakes.

[1] https://www.wisdomlib.org/definition/manvantara

[2] https://www.quora.com/What-is-a-manvantara-in-Hinduism

[3] https://www.quora.com/What-does-the-Sanskrit-word-Manvantara-mean

[4] https://glorioushinduism.com/2019/09/25/time-in-hinduism/

[5] wikipedia/en/Kalpa_(time)

[6] wikipedia/en/Saptarshi

[7] https://dharmawiki.org/index.php/Manvantaras_(%E0%A4%AE%E0%A4%A8%E0%A5%8D%E0%A4%B5%E0%A4%A8%E0%A5%8D%E0%A4%A4%E0%A4%B0%E0%A4%BE%E0%A4%A3%E0%A4%BF)

[8] https://www.wisdomlib.org/concept/manvantara

[9] wikipedia/en/Treta_Yuga

[10] https://www.facebook.com/periyavacharanam/posts/241802815953884/

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In Hindu cosmology, the numbers 4, 3, and 7 relate to the durations of cosmic time cycles known as yugas and manvantaras.

The Numbers 4:3:2:1 The numbers 4, 3, and 2, along with 1, represent the proportional lengths of the four ages (yugas) within a single Mahayuga (Great Age or Chatur-yuga):

4 parts for the Satya Yuga (or Krita Yuga)
3 parts for the Treta Yuga
2 parts for the Dvapara Yuga
1 part for the Kali Yuga

These proportions translate into human years as follows, where 1 part equals 432,000 years:

Satya Yuga: 4 x 432,000 = 1,728,000 years
Treta Yuga: 3 x 432,000 = 1,296,000 years
Dvapara Yuga: 2 x 432,000 = 864,000 years
Kali Yuga: 1 x 432,000 = 432,000 years

A complete Mahayuga cycle is the sum of these, lasting 4,320,000 years.

The Number 7 The number 7 is highly significant in the context of the manvantara:

A manvantara is a vast period of time that lasts for approximately 71 Mahayugas (specifically 71 plus some additional transitional years, totaling around 306.72 million human years).
There are 14 manvantaras in a single Kalpa (a day of Brahma, which equals 1,000 Mahayugas or 4.32 billion years).
Each manvantara is presided over by a specific Manu (the progenitor of humanity), and also features a new set of seven great sages (Saptarishis), an Indra, and various deities who are created and perish at the end of that cycle.
We are currently in the seventh manvantara of the present Kalpa, which is ruled by Vaivasvata Manu.

AI responses may include mistakes.

[1] wikipedia/en/Hindu_units_of_time

[2] https://www.wisdomlib.org/hinduism/book/the-brahma-purana/d/doc57554.html

[3] wikipedia/en/Yuga_cycle

[4] https://www.jkyog.org/blog/understanding-the-vedic-cycle-of-time/

[5] https://adsabs.harvard.edu/full/1998BASI…26..107S

[6] https://x.com/IamTheStory__/status/1670808886251515905

[7] https://www.linkedin.com/pulse/understanding-cosmic-time-hinduism-kalpa-manvantara-yugas-saha-pmp—zhpuc

[8] wikipedia/en/Dvapara_Yuga

[9] https://jayasree-saranathan.medium.com/ramayana-16-did-rama-live-in-treta-yuga-lakhs-of-years-ago-ecbcff04ba3d

[10] wikipedia/en/Treta_Yuga

[11] https://www.edu.gov.mb.ca/k12/docs/support/world_religions/hinduism/beliefs.pdf