{"id":"vidhyamitra:city-day:kozhikode:2012-12-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/kozhikode/2012-12-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2012-12-20","date_display":"December 20, 2012 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":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2012,"month":12,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456281.770833,"kali_year":5114,"ahargana":1867816.2708,"sun":{"sidereal_longitude":244.1476,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":329.132,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":84.9844,"elapsed_within_tithi_degrees":0.9844},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3,"moon_longitude":329.132,"elapsed_within_degrees":9.132},"yoga":{"number":16,"name":"Siddhi","sum_longitude":213.2797},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"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":2012,"month":12,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2456281.770833,"ahargana":1867816.2708,"kali_year":5114,"ayanamsa_lahiri":24.0342,"grahas":{"sun":{"sidereal_longitude":244.51883099999998,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"moon":{"sidereal_longitude":332.44603099999995,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false,"latitude":4.0767},"mars":{"sidereal_longitude":271.153331,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":228.29493100000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":44.63863100000003,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":true},"venus":{"sidereal_longitude":220.60853099999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":194.22713099999999,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":214.1054,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":34.1054,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","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":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2012,"month":12,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456281.770833,"kali_year":5114,"ahargana":1867816.2708,"sun":{"sidereal_longitude":244.1476,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":329.132,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":8,"name":"Aṣṭamī","paksha":"Śukla","full_name":"Śukla Aṣṭamī","elongation_degrees":84.9844,"elapsed_within_tithi_degrees":0.9844},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3,"moon_longitude":329.132,"elapsed_within_degrees":9.132},"yoga":{"number":16,"name":"Siddhi","sum_longitude":213.2797},"karana":{"half_tithi_index":14,"name":"Viṣṭi"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.077,"elongation":84.984},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.077,"opposition_distance":95.016}},"eclipse_window_40days":[]},"city":{"slug":"kozhikode","name":"Kozhikode (Calicut), Kerala","lat":11.2588,"lon":75.7804,"tz_offset_hours":5.5,"state":"Kerala","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"kozhikode","name":"Kozhikode (Calicut), Kerala","lat":11.2588,"lon":75.7804,"tz_offset_hours":5.5,"state":"Kerala","country":"IN","tier":"tier-1"},"sunriseLocal":"06:41","sunsetLocal":"18:09","solarNoonLocal":"12:25","dayLengthHours":11.463968202444306,"dayLengthDisplay":"11 Hours 27 Mins 50 Secs","nightLengthDisplay":"12 Hours 32 Mins 10 Secs","moonriseLocal":"12:15","moonsetLocal":"00:18","rahuKala":{"name":"Rāhu Kāla","start":"13:51","end":"15:17","startHours":13.850104066597726,"endHours":15.283100091903265,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:41","end":"08:07","startHours":6.685123940070034,"endHours":8.118119965375573,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:33","end":"10:59","startHours":9.551115990681112,"endHours":10.98411201598665,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:22","end":"09:45","startHours":9.360049853973706,"endHours":9.742182127388515,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:10","end":"07:28","startHours":7.162789281838547,"endHours":7.4684951005703955,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:02","end":"12:48","startHours":12.034975767877379,"endHours":12.799240314706998,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:09","end":"05:55","startHours":5.156594846410793,"endHours":5.920859393240414,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:44","end":"06:41","startHours":5.729793256533009,"endHours":6.685123940070034,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:20","end":"15:06","startHours":14.327769408366239,"endHours":15.092033955195859,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:57","end":"18:21","startHours":17.949092142514342,"endHours":18.34909214251434,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:09","end":"18:38","startHours":18.14909214251434,"endHours":18.626757484282855,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:54","end":"19:39","startHours":17.89909214251434,"endHours":19.64909214251434,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:02","end":"00:48","startHours":24.034975767877377,"endHours":24.799240314707,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:41","end":"08:07","startHours":6.685123940070034,"endHours":8.118119965375573,"quality":"auspicious"},{"name":"Roga","start":"08:07","end":"09:33","startHours":8.118119965375573,"endHours":9.551115990681112,"quality":"inauspicious"},{"name":"Udveg","start":"09:33","end":"10:59","startHours":9.551115990681112,"endHours":10.98411201598665,"quality":"inauspicious"},{"name":"Chala","start":"10:59","end":"12:25","startHours":10.98411201598665,"endHours":12.417108041292188,"quality":"neutral"},{"name":"Labha","start":"12:25","end":"13:51","startHours":12.417108041292188,"endHours":13.850104066597726,"quality":"auspicious"},{"name":"Amṛta","start":"13:51","end":"15:17","startHours":13.850104066597726,"endHours":15.283100091903265,"quality":"auspicious"},{"name":"Kāla","start":"15:17","end":"16:43","startHours":15.283100091903265,"endHours":16.716096117208803,"quality":"inauspicious"},{"name":"Śubha","start":"16:43","end":"18:09","startHours":16.716096117208803,"endHours":18.14909214251434,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:09","end":"19:43","startHours":18.14909214251434,"endHours":19.716096117208803,"quality":"auspicious"},{"name":"Kāla","start":"19:43","end":"21:17","startHours":19.716096117208803,"endHours":21.283100091903265,"quality":"inauspicious"},{"name":"Śubha","start":"21:17","end":"22:51","startHours":21.283100091903265,"endHours":22.850104066597726,"quality":"auspicious"},{"name":"Roga","start":"22:51","end":"00:25","startHours":22.850104066597726,"endHours":24.417108041292188,"quality":"inauspicious"},{"name":"Udveg","start":"00:25","end":"01:59","startHours":24.417108041292188,"endHours":25.98411201598665,"quality":"inauspicious"},{"name":"Chala","start":"01:59","end":"03:33","startHours":25.98411201598665,"endHours":27.55111599068111,"quality":"neutral"},{"name":"Labha","start":"03:33","end":"05:07","startHours":27.55111599068111,"endHours":29.118119965375573,"quality":"auspicious"},{"name":"Amṛta","start":"05:07","end":"06:41","startHours":29.118119965375573,"endHours":30.685123940070035,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:41","end":"07:41","startHours":6.685123940070034,"endHours":7.685123940070034,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:41","end":"08:41","startHours":7.685123940070034,"endHours":8.685123940070035,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:41","end":"09:41","startHours":8.685123940070035,"endHours":9.685123940070035,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:41","end":"10:41","startHours":9.685123940070035,"endHours":10.685123940070035,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:41","end":"11:41","startHours":10.685123940070035,"endHours":11.685123940070035,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:41","end":"12:41","startHours":11.685123940070035,"endHours":12.685123940070035,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:41","end":"13:41","startHours":12.685123940070035,"endHours":13.685123940070035,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:41","end":"14:41","startHours":13.685123940070035,"endHours":14.685123940070035,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:41","end":"15:41","startHours":14.685123940070035,"endHours":15.685123940070035,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:41","end":"16:41","startHours":15.685123940070035,"endHours":16.685123940070035,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:41","end":"17:41","startHours":16.685123940070035,"endHours":17.685123940070035,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:41","end":"18:41","startHours":17.685123940070035,"endHours":18.685123940070035,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:41","end":"19:41","startHours":18.685123940070035,"endHours":19.685123940070035,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:41","end":"20:41","startHours":19.685123940070035,"endHours":20.685123940070035,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:41","end":"21:41","startHours":20.685123940070035,"endHours":21.685123940070035,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:41","end":"22:41","startHours":21.685123940070035,"endHours":22.685123940070035,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:41","end":"23:41","startHours":22.685123940070035,"endHours":23.685123940070035,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:41","end":"00:41","startHours":23.685123940070035,"endHours":24.685123940070035,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:41","end":"01:41","startHours":24.685123940070035,"endHours":25.685123940070035,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:41","end":"02:41","startHours":25.685123940070035,"endHours":26.685123940070035,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:41","end":"03:41","startHours":26.685123940070035,"endHours":27.685123940070035,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:41","end":"04:41","startHours":27.685123940070035,"endHours":28.685123940070035,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:41","end":"05:41","startHours":28.685123940070035,"endHours":29.685123940070035,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:41","end":"06:41","startHours":29.685123940070035,"endHours":30.685123940070035,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-West","rahuVasa":"North-West","anandadiYoga":{"name":"Mānasa","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":-23.428580203595757,"eotMinutes":1.851917522468745,"ayanamsa":24.0342}},"calendars":{"vikram_samvat":2069,"vikram_samvatsara":"Viśvāvasu","saka_samvat":1934,"saka_samvatsara":"Nandana","bengali_samvat":1419,"malayalam_era":1188,"nanakshahi_year":543,"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 Aṣṭamī · Vikram 2069 Viśvāvasu · Śaka 1934 Nandana"},"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":[{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Śukla Aṣṭamī","url":"/day/-3137-12-25","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"kozhikode"},"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, 2012 CE · Kozhikode (Calicut), Kerala · Vidhyamitra","description":"December 20, 2012 CE for Kozhikode (Calicut), Kerala: Śukla Aṣṭamī, sūryodaya 06:41, sūryāsta 18:09.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/kozhikode/2012-12-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/kozhikode/2012-12-20","sa":"https://sa.vidhyamitra.com/city/kozhikode/2012-12-20","hi":"https://hi.vidhyamitra.com/city/kozhikode/2012-12-20","x-default":"https://vidhyamitra.com/city/kozhikode/2012-12-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T10:32:32.649Z","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":"2026-05-31T10:32:32.649Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T10:32:32.649Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}