{"id":"vidhyamitra:city-day:beijing:2012-12-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/beijing/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":"beijing","name":"Beijing, Beijing","lat":39.9075,"lon":116.3972,"tz_offset_hours":8,"state":"Beijing","country":"CN","tier":"mega"},"tier2":{"city":{"slug":"beijing","name":"Beijing, Beijing","lat":39.9075,"lon":116.3972,"tz_offset_hours":8,"state":"Beijing","country":"CN","tier":"mega"},"sunriseLocal":"07:32","sunsetLocal":"16:53","solarNoonLocal":"12:13","dayLengthHours":9.335432076491927,"dayLengthDisplay":"9 Hours 20 Mins 08 Secs","nightLengthDisplay":"14 Hours 39 Mins 52 Secs","moonriseLocal":"12:06","moonsetLocal":"00:03","rahuKala":{"name":"Rāhu Kāla","start":"13:23","end":"14:33","startHours":13.376250384187014,"endHours":14.543179393748503,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:32","end":"08:43","startHours":7.5416053363795585,"endHours":8.70853434594105,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:53","end":"11:03","startHours":9.87546335550254,"endHours":11.042392365064032,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:43","end":"10:02","startHours":9.719872820894341,"endHours":10.031053890110739,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:56","end":"08:11","startHours":7.930581672900056,"endHours":8.179526528273174,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:31","startHours":11.898140305409123,"endHours":12.520502443841918,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:18","end":"06:55","startHours":6.296881059513968,"endHours":6.919243197946764,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:46","end":"07:32","startHours":6.763652663338565,"endHours":7.5416053363795585,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:46","end":"14:23","startHours":13.76522672070751,"endHours":14.387588859140305,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:41","end":"17:05","startHours":16.677037412871485,"endHours":17.077037412871483,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"16:53","end":"17:16","startHours":16.877037412871484,"endHours":17.26601374939198,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:38","end":"18:23","startHours":16.627037412871484,"endHours":18.377037412871484,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:31","startHours":23.89814030540912,"endHours":24.52050244384192,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:32","end":"08:43","startHours":7.5416053363795585,"endHours":8.70853434594105,"quality":"auspicious"},{"name":"Roga","start":"08:43","end":"09:53","startHours":8.70853434594105,"endHours":9.87546335550254,"quality":"inauspicious"},{"name":"Udveg","start":"09:53","end":"11:03","startHours":9.87546335550254,"endHours":11.042392365064032,"quality":"inauspicious"},{"name":"Chala","start":"11:03","end":"12:13","startHours":11.042392365064032,"endHours":12.209321374625521,"quality":"neutral"},{"name":"Labha","start":"12:13","end":"13:23","startHours":12.209321374625521,"endHours":13.376250384187014,"quality":"auspicious"},{"name":"Amṛta","start":"13:23","end":"14:33","startHours":13.376250384187014,"endHours":14.543179393748503,"quality":"auspicious"},{"name":"Kāla","start":"14:33","end":"15:43","startHours":14.543179393748503,"endHours":15.710108403309995,"quality":"inauspicious"},{"name":"Śubha","start":"15:43","end":"16:53","startHours":15.710108403309995,"endHours":16.877037412871484,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"16:53","end":"18:43","startHours":16.877037412871484,"endHours":18.710108403309995,"quality":"auspicious"},{"name":"Kāla","start":"18:43","end":"20:33","startHours":18.710108403309995,"endHours":20.543179393748503,"quality":"inauspicious"},{"name":"Śubha","start":"20:33","end":"22:23","startHours":20.543179393748503,"endHours":22.37625038418701,"quality":"auspicious"},{"name":"Roga","start":"22:23","end":"00:13","startHours":22.37625038418701,"endHours":24.20932137462552,"quality":"inauspicious"},{"name":"Udveg","start":"00:13","end":"02:03","startHours":24.20932137462552,"endHours":26.042392365064032,"quality":"inauspicious"},{"name":"Chala","start":"02:03","end":"03:53","startHours":26.042392365064032,"endHours":27.87546335550254,"quality":"neutral"},{"name":"Labha","start":"03:53","end":"05:43","startHours":27.87546335550254,"endHours":29.708534345941047,"quality":"auspicious"},{"name":"Amṛta","start":"05:43","end":"07:32","startHours":29.708534345941047,"endHours":31.541605336379558,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:32","end":"08:32","startHours":7.5416053363795585,"endHours":8.541605336379558,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:32","end":"09:32","startHours":8.541605336379558,"endHours":9.541605336379558,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:32","end":"10:32","startHours":9.541605336379558,"endHours":10.541605336379558,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:32","end":"11:32","startHours":10.541605336379558,"endHours":11.541605336379558,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:32","end":"12:32","startHours":11.541605336379558,"endHours":12.541605336379558,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:32","end":"13:32","startHours":12.541605336379558,"endHours":13.541605336379558,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:32","end":"14:32","startHours":13.541605336379558,"endHours":14.541605336379558,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:32","end":"15:32","startHours":14.541605336379558,"endHours":15.541605336379558,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:32","end":"16:32","startHours":15.541605336379558,"endHours":16.541605336379558,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:32","end":"17:32","startHours":16.541605336379558,"endHours":17.541605336379558,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:32","end":"18:32","startHours":17.541605336379558,"endHours":18.541605336379558,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:32","end":"19:32","startHours":18.541605336379558,"endHours":19.541605336379558,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:32","end":"20:32","startHours":19.541605336379558,"endHours":20.541605336379558,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:32","end":"21:32","startHours":20.541605336379558,"endHours":21.541605336379558,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:32","end":"22:32","startHours":21.541605336379558,"endHours":22.541605336379558,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:32","end":"23:32","startHours":22.541605336379558,"endHours":23.541605336379558,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:32","end":"00:32","startHours":23.541605336379558,"endHours":24.541605336379558,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:32","end":"01:32","startHours":24.541605336379558,"endHours":25.541605336379558,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:32","end":"02:32","startHours":25.541605336379558,"endHours":26.541605336379558,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:32","end":"03:32","startHours":26.541605336379558,"endHours":27.541605336379558,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:32","end":"04:32","startHours":27.541605336379558,"endHours":28.541605336379558,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:32","end":"05:32","startHours":28.541605336379558,"endHours":29.541605336379558,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:32","end":"06:32","startHours":29.541605336379558,"endHours":30.541605336379558,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:32","end":"07:32","startHours":30.541605336379558,"endHours":31.541605336379558,"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":"beijing"},"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 · Beijing, Beijing · Vidhyamitra","description":"December 20, 2012 CE for Beijing, Beijing: Śukla Aṣṭamī, sūryodaya 07:32, sūryāsta 16:53.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/beijing/2012-12-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/beijing/2012-12-20","sa":"https://sa.vidhyamitra.com/city/beijing/2012-12-20","hi":"https://hi.vidhyamitra.com/city/beijing/2012-12-20","x-default":"https://vidhyamitra.com/city/beijing/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":"2026-05-31T13:33:48.739Z","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":"2026-05-31T13:33:48.739Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T13:33:48.739Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}