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Rahu Kaal
09:13 – 10:38
Avoid this window when starting something new.
Local time · Chennai
Shanivara · Margashirsha · Krishna Paksha
शनिवार · मार्गशीर्ष · कृष्ण पक्ष
Waning Crescent
Sunrise 06:23 — Sunset 17:43 · day 11h 20m
≈ 39% illuminated · decreasing
Tithi, Nakshatra, Yoga, Karana and Vara with their end-times, plus the month and the Moon’s and Sun’s signs — computed for this city’s sunrise. Times after midnight use the traditional extended clock (e.g. 27:23 = 03:23 next morning).
The lunar day. It is set by how far the Moon has pulled ahead of the Sun — each 12 degrees of separation is one tithi. The tithi shapes which activities the tradition favours, and it ends at the time shown, when the next one begins.
Every time on this page is calculated from the actual positions of the Sun and Moon using the Swiss Ephemeris (the same high-precision astronomical engine used by professional astronomers), not from a printed almanac or a fixed table.
Significance and auspicious/inauspicious flags are drawn from classical texts (Muhurta Chintamani, Brihat Samhita, the Puranas and others) and cited inline — we never assert an effect a text does not state.
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| Window | Start | End | Type |
|---|---|---|---|
| Rahu Kala | 09:13 | 10:38 | inauspicious |
| Yamaghanda Kala | 06:23 | 07:48 | inauspicious |
| Gulika Kala | 06:23 | 07:48 | inauspicious |
Brahma Muhurta
ब्रह्म मुहूर्त
04:47 – 05:35
Pratah Sandhya
प्रातः सन्ध्या
05:18 – 06:23
Vijaya Muhurta
विजय मुहूर्त
13:56 – 14:41
Godhuli Muhurta
गोधूलि मुहूर्त
17:31 – 17:55
Sayahna Sandhya
सायाह्न सन्ध्या
17:43 – 18:48
Nishita Muhurta
निशीथ मुहूर्त
23:39 – 24:27
Amrita Kalam
अमृत कालम्
15:32 – 17:18
Varjyam
वर्ज्यम्
15:06 – 16:52
The nakshatra-derived window the classics flag to avoid.
Dur Muhurtam 1
दुर्मुहूर्तम्
06:23 – 07:08
Weekday-keyed inauspicious sub-muhurta.
Dur Muhurtam 2
दुर्मुहूर्तम्
07:08 – 07:53
Weekday-keyed inauspicious sub-muhurta.
Source: Muhurta Chintamani; Dharma Sindhu. Sub-window arithmetic from sunrise + nakshatra position.
Surya Rashi
Vrishchika#8
Surya Nakshatra
Jyeshtha ज्येष्ठा
Pada 4 of 4
Moon Pada Transitions Today
Source: Lahiri (Chitrapaksha) sidereal ephemeris. Pada arithmetic from nakshatra division into 4 equal arcs of 3° 20′ each.
Shaka Samvat
1947
Plavanga प्लवङ्ग
Gujarati Samvat
2081
Krodhi क्रोधी
| Position | Deity |
|---|---|
| Raja | Sun |
| Sasyadhipati | Mercury |
Remaining governance positions (8) will populate as the engine resolves them.
Disha Shool
Eastपूर्व
avoid
Source: Avoid travel toward this direction today
Nakshatra Shool
Northउत्तर
avoid
Source: Avoid travel toward this direction while today's nakshatra prevails
Chandra Vasa
Southदक्षिण
favourable
Source: Direction favored by today's moon position
Rahu Vasa
Westपश्चिम
avoid
Tamil Yoga
Marana मरण
inauspicious
Source: Inauspicious Tamil yoga -- avoid new ventures
Favourable Janma Rashis Today
Mesha, Karka, Kanya, Vrishchika, Dhanu, Meena
Chandrashtama (avoid): Kumbha
| # | Janma Nakshatra | Tara | Quality |
|---|---|---|---|
| 1 | Ashwini | Kshema क्षेम | auspicious |
| 2 | Bharani | Vipat विपत् | inauspicious |
| 3 | Krittika | Sampat |
Ritu (Vedic)
Hemantaहेमन्त
Ritu (Drik)
Sharadशरद्
Ayana
Dakshinayanaदक्षिणायन
Dinamana
11h 20m
Ratrimana
12h 40m
Madhyahna
12:03
Source: Suryasiddhanta. Dinamana = sunrise→sunset minutes; Madhyahna = local solar noon.
| Kaliyuga Year | 5126 |
| Kali Ahargana | 1872557 |
| Julian Day | 2461022.5 |
| Modified Julian Day | 61022 |
| Rata Die | 739598 |
| National Civil (Saka) | Agrahayana 22, 1947 Shaka |
| National Nirayana (Saka) | Margashirsha 28, 1947 Shaka |
| Lahiri Ayanamsha | 24.2196° |
Derived from the day’s Julian Day and the Lahiri ayanamsha.
On Saturday, the 13th of December 2025, the Vedic calendar in Chennai carries a day of particular rhythmic quality. Sunrise arrives at 6:23 AM and dipping below the horizon at 5:43 PM, bringing 11 hours 20 minutes of daylight. The tithi is Navami of Krishna side of the lunar month, and the nakshatra of the day is Hasta. The day carries the Ayushman yoga, completing the core panchang signature for 2025-12-13. Brahma Muhurta, the pre-dawn meditation window, runs from 4:47 AM to 5:35 AM.
In Chennai, Rahu Kala runs from 9:13 AM to 10:38 AM — the period to avoid for new endeavours. The inauspicious direction (Disha Shool) for Saturday is East; new ventures toward the East are traditionally deferred. On the auspicious side, Shubh choghadiya, running 7:48 AM to 9:13 AM, stands out as the best muhurta. Hasta nakshatra is under the lordship of Moon, bringing the ancient panchang frame into direct contact with Chennai's horizon.
The Moon's star-mansion — the patch of sky it sits in today, one of 27. Each nakshatra has its own temperament that classical texts use to judge what the day is good for.
Brihat Samhita — Nakshatra chapters (nakshatra qualities)A combined Sun-and-Moon measure (one of 27 nitya-yogas) — not the physical posture practice. A few yogas, such as Vyatipata and Vaidhriti, are best avoided; most are ordinary.
Muhurta Chintamani — Yoga enumeration (tyajya-yoga list, v. 33)Half of a tithi — each lunar day holds two karanas. One of them, Vishti (also called Bhadra), is treated as inauspicious; the rest are workable.
BPHS — Karana-jnana-vidhi (11 karanas including Vishti)The weekday and its ruling planet. Each day's planet colours which tasks the tradition recommends — e.g. Thursday (Jupiter) for auspicious beginnings.
Muhurta Chintamani — Vara-prakaranam (weekday lords)The lunar month. India uses two reckonings — Amanta (new-moon to new-moon) and Purnimanta (full-moon to full-moon) — so the name can differ by region. An 'Adhika' (extra) month is inserted to keep the lunar and solar years aligned.
Nirnaya Sindhu — Adhikamasa-nirnaya (intercalary month)The fortnight. Shukla is the waxing half (Moon growing toward full); Krishna is the waning half (toward the new moon).
Calendar definition
The zodiac sign the Moon occupies now. Together with your birth Moon-sign it drives Chandrabala — the Moon's day-to-day favourability for you.
Muhurta Chintamani — 2.4-2.5 (Chandrabala)Sidereal (Lahiri) ephemeris; anga end-times computed to the city’s actual sunrise. “Adhika maas” marks an intercalary lunar month (no solar sankranti within it).
| 11:40 |
| 12:25 |
| auspicious |
Source: Muhurta Chintamani; Nirnaya Sindhu. Sub-window arithmetic from sunrise + Surya nakshatra position at the city’s coordinates.
Source: Direction occupied by Rahu; avoid offerings facing here
Agnivasa
Swargaस्वर्ग
favourable
Source: Agni's dwelling for homa-suitability assessment
Shiva Vasa
Bhojanaभोजन
neutral
Source: Shiva's location for rudrabhisheka timing
Homahuti
Rahuराहु
avoid
Source: Khala planet: offering inauspicious (खलग्रह के मुख में होमाहुति शुभ नहीं होती)
Anandadi Yoga
Mrityuमृत्यु
avoid
Source: Inauspicious day-yoga (Anandadi) -- avoid new ventures
| auspicious |
| 4 | Rohini | Janma जन्म | inauspicious |
| 5 | Mrigashira | Ati-Mitra अतिमित्र | auspicious |
| 6 | Ardra | Mitra मित्र | auspicious |
| 7 | Punarvasu | Vadha वध | inauspicious |
| 8 | Pushya | Sadhaka साधक | auspicious |
| 9 | Ashlesha | Pratyari प्रत्यरि | inauspicious |
| 10 | Magha | Kshema क्षेम | auspicious |
| 11 | Purva Phalguni | Vipat विपत् | inauspicious |
| 12 | Uttara Phalguni | Sampat सम्पत् | auspicious |
| 13 | Hasta | Janma जन्म | inauspicious |
| 14 | Chitra | Ati-Mitra अतिमित्र | auspicious |
| 15 | Swati | Mitra मित्र | auspicious |
| 16 | Vishakha | Vadha वध | inauspicious |
| 17 | Anuradha | Sadhaka साधक | auspicious |
| 18 | Jyeshtha | Pratyari प्रत्यरि | inauspicious |
| 19 | Mula | Kshema क्षेम | auspicious |
| 20 | Purva Ashadha | Vipat विपत् | inauspicious |
| 21 | Uttara Ashadha | Sampat सम्पत् | auspicious |
| 22 | Shravana | Janma जन्म | inauspicious |
| 23 | Dhanishtha | Ati-Mitra अतिमित्र | auspicious |
| 24 | Shatabhisha | Mitra मित्र | auspicious |
| 25 | Purva Bhadrapada | Vadha वध | inauspicious |
| 26 | Uttara Bhadrapada | Sadhaka साधक | auspicious |
| 27 | Revati | Pratyari प्रत्यरि | inauspicious |
| # | Janma Rashi | House from Janma | Favourable |
|---|---|---|---|
| 1 | Mesha | 6 | yes |
| 2 | Vrishabha | 5 | no |
| 3 | Mithuna | 4 | no |
| 4 | Karka | 3 | yes |
| 5 | Simha | 2 | no |
| 6 | Kanya | 1 | yes |
| 7 | Tula | 12 | no |
| 8 | Vrishchika | 11 | yes |
| 9 | Dhanu | 10 | yes |
| 10 | Makara | 9 | no |
| 11 | Kumbha | 8 | no |
| 12 | Meena | 7 | yes |
Source: Muhurta Chintamani; Brihat Samhita. Tarabala uses the 9-cycle from janma-nakshatra to today’s nakshatra.
| # | Rashi | Start | End |
|---|---|---|---|
| 8 | Vrishchika वृश्चिक | 06:23 | 06:43 |
| 9 | Dhanu धनु | 06:43 | 08:48 |
| 10 | Makara मकर | 08:48 | 10:43 |
| 11 | Kumbha कुम्भ | 10:43 | 12:23 |
| 12 | Meena मीन | 12:23 | 14:03 |
| 1 | Mesha मेष | 14:03 | 15:53 |
| 2 | Vrishabha वृषभ | 15:53 | 17:53 |
| 3 | Mithuna मिथुन | 17:53 | 20:03 |
| 4 | Karka कर्क | 20:03 | 22:13 |
| 5 | Simha सिंह | 22:13 | 24:18 |
| 6 | Kanya कन्या | 24:18 | 02:18 |
| 7 | Tula तुला | 02:18 | 04:23 |
| 8 | Vrishchika वृश्चिक | 04:23 | 06:23 |
| # | Label | Start | End | Quality |
|---|---|---|---|---|
| 1 | Mrityu मृत्यु | 06:23 | 07:08 | inauspicious |
| 2 | Agni अग्नि | 07:08 | 07:53 | inauspicious |
| 3 | Raja राज | 07:53 | 08:39 | inauspicious |
| 4 | Chora चोर | 08:39 | 09:24 | inauspicious |
| 5 | Shubha शुभ | 09:24 | 10:09 | auspicious |
| 6 | Roga रोग | 10:09 | 10:55 | inauspicious |
| 7 | Mrityu मृत्यु | 10:55 | 11:40 | inauspicious |
| 8 | Agni अग्नि | 11:40 | 12:25 | inauspicious |
| 9 | Raja राज | 12:25 | 13:11 | inauspicious |
| 10 | Chora चोर | 13:11 | 13:56 | inauspicious |
| 11 | Shubha शुभ | 13:56 | 14:41 | auspicious |
| 12 | Roga रोग | 14:41 | 15:27 | inauspicious |
| 13 | Mrityu मृत्यु | 15:27 | 16:12 | inauspicious |
| 14 | Agni अग्नि | 16:12 | 16:57 | inauspicious |
| 15 | Raja राज | 16:57 | 17:43 | inauspicious |
Source: Muhurta Chintamani; Nirnaya Sindhu.