{"id":"vidhyamitra:city-day:kanchipuram:2020-12-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/kanchipuram/2020-12-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2020-12-20","date_display":"December 20, 2020 CE","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":2020,"month":12,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459203.770833,"kali_year":5122,"ahargana":1870738.2708,"sun":{"sidereal_longitude":244.0757,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":311.2447,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":67.169,"elapsed_within_tithi_degrees":7.169},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2,"moon_longitude":311.2447,"elapsed_within_degrees":4.578},"yoga":{"number":15,"name":"Vajra","sum_longitude":195.3204},"karana":{"half_tithi_index":11,"name":"Taitila"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":2020,"month":12,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2459203.770833,"ahargana":1870738.2708,"kali_year":5122,"ayanamsa_lahiri":24.1459,"grahas":{"sun":{"sidereal_longitude":244.46618899999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"moon":{"sidereal_longitude":312.507289,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false,"latitude":-4.2784},"mars":{"sidereal_longitude":358.143889,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":244.11688900000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":275.96418900000003,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":221.017789,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":276.154589,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":59.2838,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":239.2838,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"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":2020,"month":12,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459203.770833,"kali_year":5122,"ahargana":1870738.2708,"sun":{"sidereal_longitude":244.0757,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":311.2447,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":6,"name":"Ṣaṣṭhī","paksha":"Śukla","full_name":"Śukla Ṣaṣṭhī","elongation_degrees":67.169,"elapsed_within_tithi_degrees":7.169},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2,"moon_longitude":311.2447,"elapsed_within_degrees":4.578},"yoga":{"number":15,"name":"Vajra","sum_longitude":195.3204},"karana":{"half_tithi_index":11,"name":"Taitila"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.278,"elongation":67.169},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.278,"opposition_distance":112.831}},"eclipse_window_40days":[{"offset_days":10,"type":"lunar","occurs":true,"moon_latitude":1.091,"opposition_distance":1.549}]},"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":"06:28","sunsetLocal":"17:50","solarNoonLocal":"12:09","dayLengthHours":11.36922079379169,"dayLengthDisplay":"11 Hours 22 Mins 09 Secs","nightLengthDisplay":"12 Hours 37 Mins 51 Secs","moonriseLocal":"10:47","moonsetLocal":"22:36","rahuKala":{"name":"Rāhu Kāla","start":"16:25","end":"17:50","startHours":16.419019172297403,"endHours":17.840171771521366,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:09","end":"13:35","startHours":12.15556137462552,"endHours":13.57671397384948,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:00","end":"16:25","startHours":14.997866573073441,"endHours":16.419019172297403,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:07","end":"09:30","startHours":9.123769162947735,"endHours":9.502743189407457,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:57","end":"07:15","startHours":6.944668510804328,"endHours":7.247847731972106,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:47","end":"12:32","startHours":11.776587348165798,"endHours":12.534535401085243,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:57","end":"05:43","startHours":4.955054871890782,"endHours":5.713002924810228,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:31","end":"06:28","startHours":5.5235159115803665,"endHours":6.470950977729674,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:03","end":"14:49","startHours":14.050431506924134,"endHours":14.80837955984358,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:38","end":"18:02","startHours":17.640171771521366,"endHours":18.040171771521365,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:50","end":"18:19","startHours":17.840171771521366,"endHours":18.31388930459602,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:35","end":"19:20","startHours":17.590171771521366,"endHours":19.340171771521366,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:47","end":"00:32","startHours":23.776587348165798,"endHours":24.534535401085243,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:28","end":"07:54","startHours":6.470950977729674,"endHours":7.892103576953636,"quality":"inauspicious"},{"name":"Chala","start":"07:54","end":"09:19","startHours":7.892103576953636,"endHours":9.313256176177596,"quality":"neutral"},{"name":"Labha","start":"09:19","end":"10:44","startHours":9.313256176177596,"endHours":10.734408775401558,"quality":"auspicious"},{"name":"Amṛta","start":"10:44","end":"12:09","startHours":10.734408775401558,"endHours":12.15556137462552,"quality":"auspicious"},{"name":"Kāla","start":"12:09","end":"13:35","startHours":12.15556137462552,"endHours":13.57671397384948,"quality":"inauspicious"},{"name":"Śubha","start":"13:35","end":"15:00","startHours":13.57671397384948,"endHours":14.997866573073441,"quality":"auspicious"},{"name":"Roga","start":"15:00","end":"16:25","startHours":14.997866573073441,"endHours":16.419019172297403,"quality":"inauspicious"},{"name":"Udveg","start":"16:25","end":"17:50","startHours":16.419019172297403,"endHours":17.840171771521366,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:50","end":"19:25","startHours":17.840171771521366,"endHours":19.419019172297403,"quality":"auspicious"},{"name":"Roga","start":"19:25","end":"21:00","startHours":19.419019172297403,"endHours":20.997866573073445,"quality":"inauspicious"},{"name":"Udveg","start":"21:00","end":"22:35","startHours":20.997866573073445,"endHours":22.576713973849483,"quality":"inauspicious"},{"name":"Chala","start":"22:35","end":"00:09","startHours":22.576713973849483,"endHours":24.15556137462552,"quality":"neutral"},{"name":"Labha","start":"00:09","end":"01:44","startHours":24.15556137462552,"endHours":25.73440877540156,"quality":"auspicious"},{"name":"Amṛta","start":"01:44","end":"03:19","startHours":25.73440877540156,"endHours":27.313256176177596,"quality":"auspicious"},{"name":"Kāla","start":"03:19","end":"04:54","startHours":27.313256176177596,"endHours":28.892103576953637,"quality":"inauspicious"},{"name":"Śubha","start":"04:54","end":"06:28","startHours":28.892103576953637,"endHours":30.470950977729675,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:28","end":"07:28","startHours":6.470950977729674,"endHours":7.470950977729674,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:28","end":"08:28","startHours":7.470950977729674,"endHours":8.470950977729675,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:28","end":"09:28","startHours":8.470950977729675,"endHours":9.470950977729675,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:28","end":"10:28","startHours":9.470950977729675,"endHours":10.470950977729675,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:28","end":"11:28","startHours":10.470950977729675,"endHours":11.470950977729675,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:28","end":"12:28","startHours":11.470950977729675,"endHours":12.470950977729675,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:28","end":"13:28","startHours":12.470950977729675,"endHours":13.470950977729675,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:28","end":"14:28","startHours":13.470950977729675,"endHours":14.470950977729675,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:28","end":"15:28","startHours":14.470950977729675,"endHours":15.470950977729675,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:28","end":"16:28","startHours":15.470950977729675,"endHours":16.470950977729675,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:28","end":"17:28","startHours":16.470950977729675,"endHours":17.470950977729675,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:28","end":"18:28","startHours":17.470950977729675,"endHours":18.470950977729675,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:28","end":"19:28","startHours":18.470950977729675,"endHours":19.470950977729675,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:28","end":"20:28","startHours":19.470950977729675,"endHours":20.470950977729675,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:28","end":"21:28","startHours":20.470950977729675,"endHours":21.470950977729675,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:28","end":"22:28","startHours":21.470950977729675,"endHours":22.470950977729675,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:28","end":"23:28","startHours":22.470950977729675,"endHours":23.470950977729675,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:28","end":"00:28","startHours":23.470950977729675,"endHours":24.470950977729675,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:28","end":"01:28","startHours":24.470950977729675,"endHours":25.470950977729675,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:28","end":"02:28","startHours":25.470950977729675,"endHours":26.470950977729675,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:28","end":"03:28","startHours":26.470950977729675,"endHours":27.470950977729675,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:28","end":"04:28","startHours":27.470950977729675,"endHours":28.470950977729675,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:28","end":"05:28","startHours":28.470950977729675,"endHours":29.470950977729675,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:28","end":"06:28","startHours":29.470950977729675,"endHours":30.470950977729675,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Mātaṇga","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.429213454434382,"eotMinutes":1.851917522468745,"ayanamsa":24.1459}},"calendars":{"vikram_samvat":2077,"vikram_samvatsara":"Pramādī","saka_samvat":1942,"saka_samvatsara":"Śārvarī","bengali_samvat":1427,"malayalam_era":1196,"nanakshahi_year":551,"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":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Ṣaṣṭhī · Vikram 2077 Pramādī · Śaka 1942 Śārvarī"},"festivals":[{"id":"skanda-shashthi","name":"Skanda Ṣaṣṭhī","name_sanskrit":"स्कन्द षष्ठी","tradition":"Shaiva","associated_deity":"Kārttikeya / Skanda / Murugan","significance":"Kārttikeya's victory over Tāraka. Important Shaiva day in Tamil tradition.","vrata":true,"detection":{"tithi_number":6,"tithi_paksha":"Śukla","lunar_month":"Mārgaśīrṣa"},"precedence":3}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Dedicated festival walk for Skanda Ṣaṣṭhī is not live yet; Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"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 December 20, 2020 CE · Kāñcīpuram · Vidhyamitra","description":"December 20, 2020 CE for Kāñcīpuram: Śukla Ṣaṣṭhī, sūryodaya 06:28, sūryāsta 17:50.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/kanchipuram/2020-12-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/kanchipuram/2020-12-20","sa":"https://sa.vidhyamitra.com/city/kanchipuram/2020-12-20","hi":"https://hi.vidhyamitra.com/city/kanchipuram/2020-12-20","x-default":"https://vidhyamitra.com/city/kanchipuram/2020-12-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-08-25T00:13:53.960Z","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":"2026-08-25T00:13:53.960Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-08-25T00:13:53.960Z","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"}}}