{"id":"vidhyamitra:city-day:kanchipuram:-3171-10-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/kanchipuram/-3171-10-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"-3171-10-18","date_display":"October 18, 3172 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":-3171,"month":10,"day":18,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":563140.770833,"kali_year":-69,"ahargana":-25324.7292,"sun":{"sidereal_longitude":239.1534,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":37.8519,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":158.6985,"elapsed_within_tithi_degrees":2.6985},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4,"moon_longitude":37.8519,"elapsed_within_degrees":11.1852},"yoga":{"number":21,"name":"Siddha","sum_longitude":277.0052},"karana":{"half_tithi_index":26,"name":"Gara"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":-3171,"month":10,"day":18,"hour":6,"minute":30,"calendar":"julian"},"julian_day":563140.770833,"ahargana":-25324.7292,"kali_year":-69,"ayanamsa_lahiri":-48.3714,"grahas":{"sun":{"sidereal_longitude":239.1534,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":37.8519,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false,"latitude":-3.1228},"mars":{"sidereal_longitude":63.9646,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":4},"retrograde":true},"mercury":{"sidereal_longitude":246.0511,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":61.0175,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3},"retrograde":true},"venus":{"sidereal_longitude":192.2389,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":234.7697,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":81.826,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":261.826,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"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":-3171,"month":10,"day":18,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":563140.770833,"kali_year":-69,"ahargana":-25324.7292,"sun":{"sidereal_longitude":239.1534,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":37.8519,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":158.6985,"elapsed_within_tithi_degrees":2.6985},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4,"moon_longitude":37.8519,"elapsed_within_degrees":11.1852},"yoga":{"number":21,"name":"Siddha","sum_longitude":277.0052},"karana":{"half_tithi_index":26,"name":"Gara"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.123,"elongation":158.698},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.123,"opposition_distance":21.302}},"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":"05:56","sunsetLocal":"17:55","solarNoonLocal":"11:56","dayLengthHours":11.984368429139757,"dayLengthDisplay":"11 Hours 59 Mins 04 Secs","nightLengthDisplay":"12 Hours 00 Mins 56 Secs","moonriseLocal":"16:32","moonsetLocal":"04:29","rahuKala":{"name":"Rāhu Kāla","start":"08:56","end":"10:26","startHours":8.933740255994756,"endHours":10.431786309637225,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:26","end":"14:56","startHours":13.427878416922164,"endHours":14.925924470564635,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:56","end":"07:26","startHours":5.937648148709816,"endHours":7.435694202352286,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:44","end":"09:08","startHours":8.734000782175759,"endHours":9.133479729813752,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:26","end":"06:45","startHours":6.436996833257306,"endHours":6.7565799913677,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:32","end":"12:20","startHours":11.530353415641702,"endHours":12.329311310917685,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:20","end":"05:08","startHours":4.339732358157849,"endHours":5.138690253433833,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:56","end":"05:56","startHours":4.938950779614837,"endHours":5.937648148709816,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:56","end":"14:44","startHours":13.927227101469654,"endHours":14.726184996745639,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:43","end":"18:07","startHours":17.722016577849573,"endHours":18.12201657784957,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:55","end":"18:25","startHours":17.922016577849572,"endHours":18.42136526239706,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:40","end":"19:25","startHours":17.672016577849572,"endHours":19.422016577849572,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:32","end":"00:20","startHours":23.530353415641702,"endHours":24.329311310917685,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:56","end":"07:26","startHours":5.937648148709816,"endHours":7.435694202352286,"quality":"inauspicious"},{"name":"Śubha","start":"07:26","end":"08:56","startHours":7.435694202352286,"endHours":8.933740255994756,"quality":"auspicious"},{"name":"Roga","start":"08:56","end":"10:26","startHours":8.933740255994756,"endHours":10.431786309637225,"quality":"inauspicious"},{"name":"Udveg","start":"10:26","end":"11:56","startHours":10.431786309637225,"endHours":11.929832363279694,"quality":"inauspicious"},{"name":"Chala","start":"11:56","end":"13:26","startHours":11.929832363279694,"endHours":13.427878416922164,"quality":"neutral"},{"name":"Labha","start":"13:26","end":"14:56","startHours":13.427878416922164,"endHours":14.925924470564635,"quality":"auspicious"},{"name":"Amṛta","start":"14:56","end":"16:25","startHours":14.925924470564635,"endHours":16.423970524207103,"quality":"auspicious"},{"name":"Kāla","start":"16:25","end":"17:55","startHours":16.423970524207103,"endHours":17.922016577849572,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:55","end":"19:25","startHours":17.922016577849572,"endHours":19.423970524207103,"quality":"auspicious"},{"name":"Amṛta","start":"19:25","end":"20:56","startHours":19.423970524207103,"endHours":20.92592447056463,"quality":"auspicious"},{"name":"Kāla","start":"20:56","end":"22:26","startHours":20.92592447056463,"endHours":22.427878416922162,"quality":"inauspicious"},{"name":"Śubha","start":"22:26","end":"23:56","startHours":22.427878416922162,"endHours":23.929832363279694,"quality":"auspicious"},{"name":"Roga","start":"23:56","end":"01:26","startHours":23.929832363279694,"endHours":25.431786309637225,"quality":"inauspicious"},{"name":"Udveg","start":"01:26","end":"02:56","startHours":25.431786309637225,"endHours":26.933740255994756,"quality":"inauspicious"},{"name":"Chala","start":"02:56","end":"04:26","startHours":26.933740255994756,"endHours":28.435694202352284,"quality":"neutral"},{"name":"Labha","start":"04:26","end":"05:56","startHours":28.435694202352284,"endHours":29.937648148709815,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:56","end":"06:56","startHours":5.937648148709816,"endHours":6.937648148709816,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:56","end":"07:56","startHours":6.937648148709816,"endHours":7.937648148709816,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:56","end":"08:56","startHours":7.937648148709816,"endHours":8.937648148709815,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:56","end":"09:56","startHours":8.937648148709815,"endHours":9.937648148709815,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:56","end":"10:56","startHours":9.937648148709815,"endHours":10.937648148709815,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:56","end":"11:56","startHours":10.937648148709815,"endHours":11.937648148709815,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:56","end":"12:56","startHours":11.937648148709815,"endHours":12.937648148709815,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:56","end":"13:56","startHours":12.937648148709815,"endHours":13.937648148709815,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:56","end":"14:56","startHours":13.937648148709815,"endHours":14.937648148709815,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:56","end":"15:56","startHours":14.937648148709815,"endHours":15.937648148709815,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:56","end":"16:56","startHours":15.937648148709815,"endHours":16.937648148709815,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:56","end":"17:56","startHours":16.937648148709815,"endHours":17.937648148709815,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:56","end":"18:56","startHours":17.937648148709815,"endHours":18.937648148709815,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:56","end":"19:56","startHours":18.937648148709815,"endHours":19.937648148709815,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:56","end":"20:56","startHours":19.937648148709815,"endHours":20.937648148709815,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:56","end":"21:56","startHours":20.937648148709815,"endHours":21.937648148709815,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:56","end":"22:56","startHours":21.937648148709815,"endHours":22.937648148709815,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:56","end":"23:56","startHours":22.937648148709815,"endHours":23.937648148709815,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:56","end":"00:56","startHours":23.937648148709815,"endHours":24.937648148709815,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:56","end":"01:56","startHours":24.937648148709815,"endHours":25.937648148709815,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:56","end":"02:56","startHours":25.937648148709815,"endHours":26.937648148709815,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:56","end":"03:56","startHours":26.937648148709815,"endHours":27.937648148709815,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:56","end":"04:56","startHours":27.937648148709815,"endHours":28.937648148709815,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:56","end":"05:56","startHours":28.937648148709815,"endHours":29.937648148709815,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"East","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-4.267029453153133,"eotMinutes":15.395658203218455,"ayanamsa":-48.3714}},"calendars":{"vikram_samvat":-3114,"saka_samvat":-3249,"bengali_samvat":-3764,"malayalam_era":-3995,"nanakshahi_year":-4640,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","lunar_month_amanta":"Mārgaśīrṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Caturdaśī · Vikram -3114 undefined · Śaka -3249 undefined"},"festivals":[],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 October 18, 3172 BCE · Kāñcīpuram · Vidhyamitra","description":"October 18, 3172 BCE for Kāñcīpuram: Śukla Caturdaśī, sūryodaya 05:56, sūryāsta 17:55.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/kanchipuram/-3171-10-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/kanchipuram/-3171-10-18","sa":"https://sa.vidhyamitra.com/city/kanchipuram/-3171-10-18","hi":"https://hi.vidhyamitra.com/city/kanchipuram/-3171-10-18","x-default":"https://vidhyamitra.com/city/kanchipuram/-3171-10-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-08-11T22:25:24.472Z","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":"2026-08-11T22:25:24.472Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-08-11T22:25:24.472Z","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":["Goloka/Vraja Rādhā-Krishna","Vaikuṇṭha Lakṣmī-Nārāyaṇa","Mahāviṣṇu/Kāraṇodakaśāyī Viṣṇu","Garbhodakaśāyī Viṣṇu","Brahmā","Kṣīrodaka Paramātmā/Antaryāmī (Kṣīrodakaśāyī Viṣṇu)","Bhūmi","reader's own kṣetra anywhere on Bhūmi","exact reading kṣetra","reader-bhakta","chitta/vāṇī/aṅgulī","keyboard-silicon-pathways","Vidhyāmitra substrate","reader/seer","Krishna"],"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"}}}