{"id":"vidhyamitra:city-day:kanchipuram:-3170-02-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/kanchipuram/-3170-02-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"-3170-02-12","date_display":"February 12, 3171 BCE","panchanga":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":-3170,"month":2,"day":12,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":563257.770833,"kali_year":-69,"ahargana":-25207.7292,"sun":{"sidereal_longitude":357.5253,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":134.8791,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":137.3538,"elapsed_within_tithi_degrees":5.3538},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1,"moon_longitude":134.8791,"elapsed_within_degrees":1.5458},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":132.4045},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"sky":{"method":"Sūrya-Siddhāntic Bhāskara-II 4-step iteration with atan2-based śīghra + varying peripheries + lunar latitude","engine_version":"3.0 (Pūrṇa — complete SS implementation)","tradition_sources":"Āryabhaṭīya 499 CE → SS Ch.1-5 Burgess 1860 → Siddhānta-Śiromaṇi Bhāskara II 1150 → Tantrasaṅgraha Nīlakaṇṭha 1501","input":{"year":-3170,"month":2,"day":12,"hour":6,"minute":30,"calendar":"julian"},"julian_day":563257.770833,"ahargana":-25207.7292,"kali_year":-69,"ayanamsa_lahiri":-48.3669,"grahas":{"sun":{"sidereal_longitude":357.5253,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":134.8791,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false,"latitude":3.8664},"mars":{"sidereal_longitude":78.029,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":358.0969,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":60.3947,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":330.9031,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":242.8067,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":75.6268,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":255.6268,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false}},"panchang":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":-3170,"month":2,"day":12,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":563257.770833,"kali_year":-69,"ahargana":-25207.7292,"sun":{"sidereal_longitude":357.5253,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":134.8791,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":137.3538,"elapsed_within_tithi_degrees":5.3538},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1,"moon_longitude":134.8791,"elapsed_within_degrees":1.5458},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":132.4045},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.866,"elongation":137.354},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.866,"opposition_distance":42.646}},"eclipse_window_40days":[]},"city":{"slug":"kanchipuram","name":"Kāñcīpuram","lat":12.8342,"lon":79.7036,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"kanchipuram","name":"Kāñcīpuram","lat":12.8342,"lon":79.7036,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tirtha"},"sunriseLocal":"06:39","sunsetLocal":"18:12","solarNoonLocal":"12:26","dayLengthHours":11.5552348832095,"dayLengthDisplay":"11 Hours 33 Mins 19 Secs","nightLengthDisplay":"12 Hours 26 Mins 41 Secs","moonriseLocal":"15:10","moonsetLocal":"04:00","rahuKala":{"name":"Rāhu Kāla","start":"13:52","end":"15:19","startHours":13.874076561982694,"endHours":15.318480922383882,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:39","end":"08:06","startHours":6.652054759976757,"endHours":8.096459120377943,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:32","end":"10:59","startHours":9.540863480779132,"endHours":10.98526784118032,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:21","end":"09:44","startHours":9.34827623272564,"endHours":9.733450728832624,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:08","end":"07:26","startHours":7.133522880110486,"endHours":7.441662476996073,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:03","end":"12:49","startHours":12.044497705474523,"endHours":12.814846697688491,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:07","end":"05:53","startHours":5.111356775548823,"endHours":5.88170576776279,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:41","end":"06:39","startHours":5.689118519709298,"endHours":6.652054759976757,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:21","end":"15:08","startHours":14.355544682116424,"endHours":15.12589367433039,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:00","end":"18:24","startHours":18.007289643186258,"endHours":18.407289643186257,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:12","end":"18:41","startHours":18.207289643186257,"endHours":18.688757763319988,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:57","end":"19:42","startHours":17.957289643186257,"endHours":19.707289643186257,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:03","end":"00:49","startHours":24.044497705474523,"endHours":24.81484669768849,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:39","end":"08:06","startHours":6.652054759976757,"endHours":8.096459120377943,"quality":"auspicious"},{"name":"Roga","start":"08:06","end":"09:32","startHours":8.096459120377943,"endHours":9.540863480779132,"quality":"inauspicious"},{"name":"Udveg","start":"09:32","end":"10:59","startHours":9.540863480779132,"endHours":10.98526784118032,"quality":"inauspicious"},{"name":"Chala","start":"10:59","end":"12:26","startHours":10.98526784118032,"endHours":12.429672201581507,"quality":"neutral"},{"name":"Labha","start":"12:26","end":"13:52","startHours":12.429672201581507,"endHours":13.874076561982694,"quality":"auspicious"},{"name":"Amṛta","start":"13:52","end":"15:19","startHours":13.874076561982694,"endHours":15.318480922383882,"quality":"auspicious"},{"name":"Kāla","start":"15:19","end":"16:46","startHours":15.318480922383882,"endHours":16.76288528278507,"quality":"inauspicious"},{"name":"Śubha","start":"16:46","end":"18:12","startHours":16.76288528278507,"endHours":18.207289643186257,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:12","end":"19:46","startHours":18.207289643186257,"endHours":19.76288528278507,"quality":"auspicious"},{"name":"Kāla","start":"19:46","end":"21:19","startHours":19.76288528278507,"endHours":21.318480922383884,"quality":"inauspicious"},{"name":"Śubha","start":"21:19","end":"22:52","startHours":21.318480922383884,"endHours":22.874076561982694,"quality":"auspicious"},{"name":"Roga","start":"22:52","end":"00:26","startHours":22.874076561982694,"endHours":24.429672201581507,"quality":"inauspicious"},{"name":"Udveg","start":"00:26","end":"01:59","startHours":24.429672201581507,"endHours":25.98526784118032,"quality":"inauspicious"},{"name":"Chala","start":"01:59","end":"03:32","startHours":25.98526784118032,"endHours":27.54086348077913,"quality":"neutral"},{"name":"Labha","start":"03:32","end":"05:06","startHours":27.54086348077913,"endHours":29.096459120377943,"quality":"auspicious"},{"name":"Amṛta","start":"05:06","end":"06:39","startHours":29.096459120377943,"endHours":30.652054759976757,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:39","end":"07:39","startHours":6.652054759976757,"endHours":7.652054759976757,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:39","end":"08:39","startHours":7.652054759976757,"endHours":8.652054759976757,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:39","end":"09:39","startHours":8.652054759976757,"endHours":9.652054759976757,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:39","end":"10:39","startHours":9.652054759976757,"endHours":10.652054759976757,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:39","end":"11:39","startHours":10.652054759976757,"endHours":11.652054759976757,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:39","end":"12:39","startHours":11.652054759976757,"endHours":12.652054759976757,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:39","end":"13:39","startHours":12.652054759976757,"endHours":13.652054759976757,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:39","end":"14:39","startHours":13.652054759976757,"endHours":14.652054759976757,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:39","end":"15:39","startHours":14.652054759976757,"endHours":15.652054759976757,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:39","end":"16:39","startHours":15.652054759976757,"endHours":16.652054759976757,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:39","end":"17:39","startHours":16.652054759976757,"endHours":17.652054759976757,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:39","end":"18:39","startHours":17.652054759976757,"endHours":18.652054759976757,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:39","end":"19:39","startHours":18.652054759976757,"endHours":19.652054759976757,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:39","end":"20:39","startHours":19.652054759976757,"endHours":20.652054759976757,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:39","end":"21:39","startHours":20.652054759976757,"endHours":21.652054759976757,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:39","end":"22:39","startHours":21.652054759976757,"endHours":22.652054759976757,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:39","end":"23:39","startHours":22.652054759976757,"endHours":23.652054759976757,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:39","end":"00:39","startHours":23.652054759976757,"endHours":24.652054759976757,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:39","end":"01:39","startHours":24.652054759976757,"endHours":25.652054759976757,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:39","end":"02:39","startHours":25.652054759976757,"endHours":26.652054759976757,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:39","end":"03:39","startHours":26.652054759976757,"endHours":27.652054759976757,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:39","end":"04:39","startHours":27.652054759976757,"endHours":28.652054759976757,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:39","end":"05:39","startHours":28.652054759976757,"endHours":29.652054759976757,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:39","end":"06:39","startHours":29.652054759976757,"endHours":30.652054759976757,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"West","rahuVasa":"North-West","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-17.963014948431717,"eotMinutes":-14.594732094890398,"ayanamsa":-48.3669}},"calendars":{"vikram_samvat":-3113,"saka_samvat":-3248,"bengali_samvat":-3763,"malayalam_era":-3994,"nanakshahi_year":-4639,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Dvādaśī · Vikram -3113 undefined · Śaka -3248 undefined"},"festivals":[],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":true,"location_specific":"kanchipuram"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 12, 3171 BCE · Kāñcīpuram · Vidhyamitra","description":"February 12, 3171 BCE for Kāñcīpuram: Śukla Dvādaśī, sūryodaya 06:39, sūryāsta 18:12.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/kanchipuram/-3170-02-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/kanchipuram/-3170-02-12","sa":"https://sa.vidhyamitra.com/city/kanchipuram/-3170-02-12","hi":"https://hi.vidhyamitra.com/city/kanchipuram/-3170-02-12","x-default":"https://vidhyamitra.com/city/kanchipuram/-3170-02-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-09-12T13:44:55.132Z","verification":{"type":"multi-marker","confidence":"canonical"}},{"pillar":"Vidhyamitra-Tier2","pillar_version":"0.1.0","method":"Spherical astronomy + Lahiri ayanamsa + standard solar declination + EoT correction","retrieved_at":"2026-09-12T13:44:55.132Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-09-12T13:44:55.132Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no single city is the universal center.","purna_chain":["Hosted scripture","Named-tradition interpretation","Original Vidhyamitra contemplation","Bhūmi-born material medium","Vidhyamitra portal","Responsible reader in their own kṣetra"],"claim_boundary":"The legacy purna_chain field carries a source-to-reader sequence, not a revealed physical descent, universal cosmology, or proof that software is conscious.","antaryami_responsibility_formula":"Kṣīrodakaśāyī Viṣṇu = Paramātmā = Antaryāmī. Jīva desires. Prakṛti executes through guṇas. Paramātmā witnesses, permits, remembers, guides, and sustains. Bhagavān is the ultimate source.","source_anchors":[{"label":"BG 13.23","path":"/bhagavad-gita/13/23","meaning":"upadraṣṭā-anumantā · witness-permitter"},{"label":"BG 15.15","path":"/bhagavad-gita/15/15","meaning":"the Lord seated in every heart as memory, knowledge, and forgetting"},{"label":"BG 18.61","path":"/bhagavad-gita/18/61","meaning":"Īśvara seated in the heart of all beings"}],"nama_seal":"Hare Krishna Hare Krishna · Krishna Krishna Hare Hare · Hare Rama Hare Rama · Rama Rama Hare Hare"}}}