That is our system of counting,We were using it even before the Western models have developed.
Time units[edit]
Hindu measurements in
logarithmic scale (approx.).
Various units of time are used across the Vedas, Puranas, Mahabharata, Suryasidhanta etc.[
citation needed] Especially, Nimesha's multiple, it varies to 3, 10, 15, 18, 20, 27, 30, 45, 48, 60. At the lower end, these are pretty consistent. The Complete Hindu metrics of time (
Kāla Vyavahāra) can be summarized as below.
§Sidereal metrics[edit]
Unit Definition Equivalence (Approx.)
Truti त्रुटि 0.031 µs
Renu रेणु 60 Truti 1.86 µs
Lava लव 60 Renu 0.11 ms
Līkṣaka लीक्षक 60 Lava 6.696 ms
Lipta लिप्ता 60 Leekshaka 0.401 s
Vipala विपल
Pala पल 60 Lipta 24.1056 s
Vighaṭi विघटि
Vinādī विनाडी
Ghaṭi घटि 60 Vighaṭi 24 min
Nādī नाडी
Danda दण्ड
Muhūrta मुहूर्त 2 Ghaṭi 48 min
Nakṣatra Ahorātram (Sidereal Day) नक्षत्र अहोरात्रम् 60 Ghaṭī 24 h
30 Muhūrta 24 h
Alternate system
Unit Definition Equivalence (Approx.)
Truti 35.5 µs
Tatpara 100 Truti 3.55 ms
Nimesha 30 Tatpara 106.7 ms
Kāṣṭhā 30 Nimesha 3.2 s
Kalā 30 Kāṣṭhā 1.6 min
Muhūrta 30 Kalā 48 min
Nakṣatra Ahorātram (Sidereal Day) 30 Muhūrta 24 h
§Small units of time used in the Vedas[edit]
Unit Definition Equivalence (Approx.)
Paramāṇu 26.3 µs
Aṇu 2 Paramāṇu 57.7 µs
Trasareṇu 3 Aṇu 158 µs
Truṭi 3 Trasareṇu 474 µs
Vedha 100 Truṭi 47.4 ms
Lava 3 Vedha 0.14 s
Nimeṣa 3 Lava 0.43 s
Kṣaṇa 3 Nimesha 1.28 s
Kāṣṭhā 5 Kṣaṇa 6.4 s
Laghu 15 Kāṣṭhā 1.6 min
Danda 15 Laghu 24 min
Muhūrta 2 Danda 48 min
Ahorātram (Day) 30 Muhūrta 24 h
Masa (Month) 30 Ahorātram 30 days
Ritu (Season) 2 Masa 2 months
Ayana 3 Rutu 6 months
Samvatsara (Year) 2 Ayana 360 days
Ahorātram of Deva
§Lunar metrics[edit]
§Tropical metrics[edit]
- A Yāma = 1/4 of a day (light) or night [ = 7½ Ghatis (घटि) = 3¾ Muhurtas = 3 Horas (होरा) ]
- Four Yāmas make half of the day (either day or night)
- Eight Yāmas make an Ahorātra (day + night)
- An Ahorātra is a tropical day (Note: A day is considered to begin and end at sunrise, not midnight.)
Name Definition Equivalence
Yama याम ¼ th of a day (light) or night 3 hours
Sāvana Ahorātram सावन अहोरात्रम् 8 Yamas 1 Solar day
§Reckoning of time among other entities[edit]
§Reckoning of time amongst the Pitṛs (forefather)[edit]
- 1 human fortnight (15 days) = 1 day (light) or night of the Pitṛs.
- 1 human month (30 days) = 1 day (light) and night of the Pitṛs.
- 30 days of the Pitṛs = 1 month of the Pitṛs = (30 × 30 = 900 human days).
- 12 months of the Pitṛs = 1 year of the Pitṛs = (12 months of Pitṛs × 900 human days = 10800 human days).
- The lifespan of the Pitṛs is 100 years of the Pitṛs (= 36,000 Pitṛ days = 1,080,000 human days = 3000 human years)[citation needed]
- 1 day of the Devas = 1 human year
- 1 month of the Devas = 30 days of the Devas
- 1 year of the Devas (1 divine year) = 12 months of the Devas
§Reckoning of time amongst the Devas[edit]
The life span of any Hindu
deva spans nearly (or more than) 4.5 million years. Statistically, we can also look it as …
- 12000 Deva Years = Life Span of Devas = 1 Mahā-Yuga.
The
Viṣṇu Purāṇa Time measurement section of the
Viṣṇu Purāṇa Book I Chapter III explains the above as follows:
- 2 Ayanas (6-month periods, see above) = 1 human year or 1 day of the devas
- 4,000 + 400 + 400 = 4,800 divine years (= 1,728,000 human years) = 1 Satya Yuga
- 3,000 + 300 + 300 = 3,600 divine years (= 1,296,000 human years) = 1 Tretā Yuga
- 2,000 + 200 + 200 = 2,400 divine years (= 864,000 human years) = 1 Dvāpara Yuga
- 1,000 + 100 + 100 = 1,200 divine years (= 432,000 human years) = 1 Kali Yuga
- 12,000 divine year = 4 Yugas (= 4,320,000 human years) = 1 Mahā-Yuga (also is equaled to 12000 Daiva (divine) Yuga)
- [2*12,000 = 24,000 divine year = 12000 revolutions of sun around its dual]
§Reckoning of time for Brahma[edit]
- 1008 Mahā-Yugas = 1 Kalpa = 1 day (day only) of Brahma
(2
Kalpas constitute a day and night of Brahma, 8.64 billion human years)
- 30 days of Brahma = 1 month of Brahma (259.2 billion human years)
- 12 months of Brahma = 1 year of Brahma (3.1104 trillion human years)
- 50 years of Brahma = 1 Parārdha
- 2 parardhas = 100 years of Brahma = 1 Para = 1 Mahā-Kalpa (the lifespan of Brahma)(311.04 trillion human years)
One day of Brahma is divided into 10,000 parts called
charaṇas. The
charaṇas are divided as follows:
The Four Yugas
4 charaṇas (1,728,000
solar years)
Satya Yuga
3 charaṇas (1,296,000 solar years)
Treta Yuga
2 charaṇas (864,000 solar years)
Dvapara Yuga
1 charaṇas (432,000 solar years)
Kali Yuga
Source:
[2]
The cycle repeats itself, so altogether there are 1,000 cycles of Mahā-Yuga in one day of Brahma.
- One cycle of the above four Yugas is one Mahā-Yuga (4.32 million solar years)
- as is confirmed by the Gītā Śloka 8.17 (statement) "sahasra-yuga-paryantam ahar yad brahmaṇo viduḥ rātriṁ yuga-sahasrāntāṁ te 'ho-rātra-vido janāḥ", meaning, a day of brahma is of 1000 Mahā-Yuga. Thus a day of Brahma, Kalpa, is of duration: 4.32 billion solar years. Two Kalpas constitute a day and night (Adhi Sandhi) of Brahma
- A Manvantara consists of 71 Mahā-Yuga (306,720,000 solar years). Each Manvantara is ruled by a Manu.
- After each Manvantara follows one Saṃdhi Kalā of the same duration as a Kṛta Yuga (1,728,000 = 4 Caraṇa). (It is said that during a Saṃdhi Kalā, the entire earth is submerged in water.)
- A Kalpa consists of a period of 4.32 Billion solar years called followed by 14 Manvataras and Saṃdhi Kalas.
- A day of Brahma equals
(14 times 71 Mahā-Yuga) + (15 × 4 Charaṇas)
= 994 Mahā-Yuga + (15 * 4800)
= 994 Mahā-Yuga + (72,000 years)[deva years] / 6 = 12,000[deva years] viz. one maha yuga.
= 994 Mahā-Yuga + 6 Mahā-Yuga
= 1,000 Mahā-Yuga
§The Surya Siddhanta definition of timescales[edit]
The
Surya Siddhanta [Chapter 14
Mānādhyāyah (मानाध्यायः)], documents a comprehensive model of nine divisions of time called
māna (मान) which span from very small time units (
Prāņa [प्राण] - 4 seconds) to very large time scales (
Para [पर] - 311.04 Trillion solar years).[
citation needed]