{"id":"vidhyamitra:city-day:beijing:1981-12-24:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/beijing/1981-12-24","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-12-24","date_display":"December 24, 1981 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":1981,"month":12,"day":24,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444962.770833,"kali_year":5083,"ahargana":1856497.2708,"sun":{"sidereal_longitude":248.279,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":221.2253,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":332.9463,"elapsed_within_tithi_degrees":8.9463},"nakshatra":{"number":17,"name":"Anurādhā","pada":3,"moon_longitude":221.2253,"elapsed_within_degrees":7.892},"yoga":{"number":9,"name":"Śūla","sum_longitude":109.5044},"karana":{"half_tithi_index":55,"name":"Vaṇija"},"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":1981,"month":12,"day":24,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444962.770833,"ahargana":1856497.2708,"kali_year":5083,"ayanamsa_lahiri":23.6013,"grahas":{"sun":{"sidereal_longitude":248.54070000000002,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"moon":{"sidereal_longitude":222.77909999999997,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false,"latitude":3.5742},"mars":{"sidereal_longitude":160.2776,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":256.4388,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":191.67020000000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":284.3681,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":true},"saturn":{"sidereal_longitude":177.08899999999994,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":93.8405,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":273.8405,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara 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":"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":1981,"month":12,"day":24,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444962.770833,"kali_year":5083,"ahargana":1856497.2708,"sun":{"sidereal_longitude":248.279,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":221.2253,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":332.9463,"elapsed_within_tithi_degrees":8.9463},"nakshatra":{"number":17,"name":"Anurādhā","pada":3,"moon_longitude":221.2253,"elapsed_within_degrees":7.892},"yoga":{"number":9,"name":"Śūla","sum_longitude":109.5044},"karana":{"half_tithi_index":55,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.574,"elongation":27.054},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.574,"opposition_distance":152.946}},"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":"07:34","sunsetLocal":"16:55","solarNoonLocal":"12:14","dayLengthHours":9.336749571357783,"dayLengthDisplay":"9 Hours 20 Mins 12 Secs","nightLengthDisplay":"14 Hours 39 Mins 48 Secs","moonriseLocal":"05:44","moonsetLocal":"15:18","rahuKala":{"name":"Rāhu Kāla","start":"13:24","end":"14:34","startHours":13.407704966486644,"endHours":14.574798662906367,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:34","end":"08:44","startHours":7.57223648438803,"endHours":8.739330180807753,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:54","end":"11:04","startHours":9.906423877227477,"endHours":11.073517573647198,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:45","end":"10:04","startHours":9.750811384371513,"endHours":10.06203637008344,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:58","end":"08:13","startHours":7.961267716527938,"endHours":8.210247705097478,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:56","end":"12:33","startHours":11.929386284354996,"endHours":12.551836255778847,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:20","end":"06:57","startHours":6.327336541540326,"endHours":6.949786512964178,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:48","end":"07:34","startHours":6.7941740201082155,"endHours":7.57223648438803,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:48","end":"14:25","startHours":13.796736198626553,"endHours":14.419186170050406,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:43","end":"17:07","startHours":16.708986055745815,"endHours":17.108986055745813,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"16:55","end":"17:18","startHours":16.908986055745814,"endHours":17.29801728788572,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:40","end":"18:25","startHours":16.658986055745814,"endHours":18.408986055745814,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:56","end":"00:33","startHours":23.929386284354994,"endHours":24.55183625577885,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:34","end":"08:44","startHours":7.57223648438803,"endHours":8.739330180807753,"quality":"auspicious"},{"name":"Roga","start":"08:44","end":"09:54","startHours":8.739330180807753,"endHours":9.906423877227477,"quality":"inauspicious"},{"name":"Udveg","start":"09:54","end":"11:04","startHours":9.906423877227477,"endHours":11.073517573647198,"quality":"inauspicious"},{"name":"Chala","start":"11:04","end":"12:14","startHours":11.073517573647198,"endHours":12.240611270066921,"quality":"neutral"},{"name":"Labha","start":"12:14","end":"13:24","startHours":12.240611270066921,"endHours":13.407704966486644,"quality":"auspicious"},{"name":"Amṛta","start":"13:24","end":"14:34","startHours":13.407704966486644,"endHours":14.574798662906367,"quality":"auspicious"},{"name":"Kāla","start":"14:34","end":"15:45","startHours":14.574798662906367,"endHours":15.74189235932609,"quality":"inauspicious"},{"name":"Śubha","start":"15:45","end":"16:55","startHours":15.74189235932609,"endHours":16.908986055745814,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"16:55","end":"18:45","startHours":16.908986055745814,"endHours":18.74189235932609,"quality":"auspicious"},{"name":"Kāla","start":"18:45","end":"20:34","startHours":18.74189235932609,"endHours":20.574798662906367,"quality":"inauspicious"},{"name":"Śubha","start":"20:34","end":"22:24","startHours":20.574798662906367,"endHours":22.407704966486644,"quality":"auspicious"},{"name":"Roga","start":"22:24","end":"00:14","startHours":22.407704966486644,"endHours":24.24061127006692,"quality":"inauspicious"},{"name":"Udveg","start":"00:14","end":"02:04","startHours":24.24061127006692,"endHours":26.0735175736472,"quality":"inauspicious"},{"name":"Chala","start":"02:04","end":"03:54","startHours":26.0735175736472,"endHours":27.906423877227475,"quality":"neutral"},{"name":"Labha","start":"03:54","end":"05:44","startHours":27.906423877227475,"endHours":29.739330180807755,"quality":"auspicious"},{"name":"Amṛta","start":"05:44","end":"07:34","startHours":29.739330180807755,"endHours":31.57223648438803,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:34","end":"08:34","startHours":7.57223648438803,"endHours":8.57223648438803,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:34","end":"09:34","startHours":8.57223648438803,"endHours":9.57223648438803,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:34","end":"10:34","startHours":9.57223648438803,"endHours":10.57223648438803,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:34","end":"11:34","startHours":10.57223648438803,"endHours":11.57223648438803,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:34","end":"12:34","startHours":11.57223648438803,"endHours":12.57223648438803,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:34","end":"13:34","startHours":12.57223648438803,"endHours":13.57223648438803,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:34","end":"14:34","startHours":13.57223648438803,"endHours":14.57223648438803,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:34","end":"15:34","startHours":14.57223648438803,"endHours":15.57223648438803,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:34","end":"16:34","startHours":15.57223648438803,"endHours":16.57223648438803,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:34","end":"17:34","startHours":16.57223648438803,"endHours":17.57223648438803,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:34","end":"18:34","startHours":17.57223648438803,"endHours":18.57223648438803,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:34","end":"19:34","startHours":18.57223648438803,"endHours":19.57223648438803,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:34","end":"20:34","startHours":19.57223648438803,"endHours":20.57223648438803,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:34","end":"21:34","startHours":20.57223648438803,"endHours":21.57223648438803,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:34","end":"22:34","startHours":21.57223648438803,"endHours":22.57223648438803,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:34","end":"23:34","startHours":22.57223648438803,"endHours":23.57223648438803,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:34","end":"00:34","startHours":23.57223648438803,"endHours":24.57223648438803,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:34","end":"01:34","startHours":24.57223648438803,"endHours":25.57223648438803,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:34","end":"02:34","startHours":25.57223648438803,"endHours":26.57223648438803,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:34","end":"03:34","startHours":26.57223648438803,"endHours":27.57223648438803,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:34","end":"04:34","startHours":27.57223648438803,"endHours":28.57223648438803,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:34","end":"05:34","startHours":28.57223648438803,"endHours":29.57223648438803,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:34","end":"06:34","startHours":29.57223648438803,"endHours":30.57223648438803,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:34","end":"07:34","startHours":30.57223648438803,"endHours":31.57223648438803,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"North-East","rahuVasa":"North-West","anandadiYoga":{"name":"Saumya","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.41914632326938,"eotMinutes":-0.025476204015291604,"ayanamsa":23.6013}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","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":"Pauṣa Kṛṣṇa Trayodaśī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"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":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 24, 1981 CE · Beijing, Beijing · Vidhyamitra","description":"December 24, 1981 CE for Beijing, Beijing: Kṛṣṇa Trayodaśī, sūryodaya 07:34, sūryāsta 16:55.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/beijing/1981-12-24","hreflang_alternates":{"en":"https://vidhyamitra.com/city/beijing/1981-12-24","sa":"https://sa.vidhyamitra.com/city/beijing/1981-12-24","hi":"https://hi.vidhyamitra.com/city/beijing/1981-12-24","x-default":"https://vidhyamitra.com/city/beijing/1981-12-24"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T10:58:40.940Z","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":"2026-06-01T10:58:40.940Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T10:58:40.940Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}