{"id":"vidhyamitra:city-day:howrah:1920-12-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/howrah/1920-12-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1920-12-01","date_display":"December 1, 1920 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":1920,"month":12,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2422659.770833,"kali_year":5022,"ahargana":1834194.2708,"sun":{"sidereal_longitude":225.5042,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":110.9442,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":245.44,"elapsed_within_tithi_degrees":5.44},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2,"moon_longitude":110.9442,"elapsed_within_degrees":4.2775},"yoga":{"number":26,"name":"Indra","sum_longitude":336.4484},"karana":{"half_tithi_index":40,"name":"Gara"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":1920,"month":12,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2422659.770833,"ahargana":1834194.2708,"kali_year":5022,"ayanamsa_lahiri":22.7482,"grahas":{"sun":{"sidereal_longitude":225.809838,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":114.509638,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false,"latitude":-4.4801},"mars":{"sidereal_longitude":280.99263799999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":206.70643799999993,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":144.942138,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":264.56053799999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":151.32993799999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":195.5608,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":15.5608,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"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":1920,"month":12,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2422659.770833,"kali_year":5022,"ahargana":1834194.2708,"sun":{"sidereal_longitude":225.5042,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":110.9442,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":245.44,"elapsed_within_tithi_degrees":5.44},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2,"moon_longitude":110.9442,"elapsed_within_degrees":4.2775},"yoga":{"number":26,"name":"Indra","sum_longitude":336.4484},"karana":{"half_tithi_index":40,"name":"Gara"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.48,"elongation":114.56},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.48,"opposition_distance":65.44}},"eclipse_window_40days":[]},"city":{"slug":"howrah","name":"Howrah, West Bengal","lat":22.5958,"lon":88.2636,"tz_offset_hours":5.5,"state":"West Bengal","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"howrah","name":"Howrah, West Bengal","lat":22.5958,"lon":88.2636,"tz_offset_hours":5.5,"state":"West Bengal","country":"IN","tier":"tier-1"},"sunriseLocal":"06:01","sunsetLocal":"16:53","solarNoonLocal":"11:27","dayLengthHours":10.858225286403687,"dayLengthDisplay":"10 Hours 51 Mins 30 Secs","nightLengthDisplay":"13 Hours 08 Mins 30 Secs","moonriseLocal":"21:32","moonsetLocal":"10:31","rahuKala":{"name":"Rāhu Kāla","start":"11:27","end":"12:48","startHours":11.446909156659991,"endHours":12.804187317460453,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:23","end":"08:44","startHours":7.375074674258609,"endHours":8.73235283505907,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:05","end":"11:27","startHours":10.08963099585953,"endHours":11.446909156659991,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:33","end":"08:55","startHours":8.551382413619008,"endHours":8.913323256499131,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:28","end":"06:46","startHours":6.470222567058301,"endHours":6.7597752413624,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:05","end":"11:49","startHours":11.084968313779868,"endHours":11.808849999540115,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:34","end":"05:18","startHours":4.570033141937656,"endHours":5.293914827697902,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:07","end":"06:01","startHours":5.11294440625784,"endHours":6.017796513458148,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:15","end":"13:59","startHours":13.256613371060606,"endHours":13.980495056820851,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:41","end":"17:05","startHours":16.676021799861836,"endHours":17.076021799861834,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"16:53","end":"17:20","startHours":16.876021799861835,"endHours":17.328447853461988,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:38","end":"18:23","startHours":16.626021799861835,"endHours":18.376021799861835,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:05","end":"23:49","startHours":23.084968313779868,"endHours":23.808849999540115,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:01","end":"07:23","startHours":6.017796513458148,"endHours":7.375074674258609,"quality":"auspicious"},{"name":"Amṛta","start":"07:23","end":"08:44","startHours":7.375074674258609,"endHours":8.73235283505907,"quality":"auspicious"},{"name":"Kāla","start":"08:44","end":"10:05","startHours":8.73235283505907,"endHours":10.08963099585953,"quality":"inauspicious"},{"name":"Śubha","start":"10:05","end":"11:27","startHours":10.08963099585953,"endHours":11.446909156659991,"quality":"auspicious"},{"name":"Roga","start":"11:27","end":"12:48","startHours":11.446909156659991,"endHours":12.804187317460453,"quality":"inauspicious"},{"name":"Udveg","start":"12:48","end":"14:10","startHours":12.804187317460453,"endHours":14.161465478260913,"quality":"inauspicious"},{"name":"Chala","start":"14:10","end":"15:31","startHours":14.161465478260913,"endHours":15.518743639061373,"quality":"neutral"},{"name":"Labha","start":"15:31","end":"16:53","startHours":15.518743639061373,"endHours":16.876021799861835,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"16:53","end":"18:31","startHours":16.876021799861835,"endHours":18.518743639061373,"quality":"inauspicious"},{"name":"Chala","start":"18:31","end":"20:10","startHours":18.518743639061373,"endHours":20.161465478260915,"quality":"neutral"},{"name":"Labha","start":"20:10","end":"21:48","startHours":20.161465478260915,"endHours":21.804187317460453,"quality":"auspicious"},{"name":"Amṛta","start":"21:48","end":"23:27","startHours":21.804187317460453,"endHours":23.44690915665999,"quality":"auspicious"},{"name":"Kāla","start":"23:27","end":"01:05","startHours":23.44690915665999,"endHours":25.08963099585953,"quality":"inauspicious"},{"name":"Śubha","start":"01:05","end":"02:44","startHours":25.08963099585953,"endHours":26.732352835059068,"quality":"auspicious"},{"name":"Roga","start":"02:44","end":"04:23","startHours":26.732352835059068,"endHours":28.37507467425861,"quality":"inauspicious"},{"name":"Udveg","start":"04:23","end":"06:01","startHours":28.37507467425861,"endHours":30.017796513458148,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:01","end":"07:01","startHours":6.017796513458148,"endHours":7.017796513458148,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:01","end":"08:01","startHours":7.017796513458148,"endHours":8.017796513458148,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:01","end":"09:01","startHours":8.017796513458148,"endHours":9.017796513458148,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:01","end":"10:01","startHours":9.017796513458148,"endHours":10.017796513458148,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:01","end":"11:01","startHours":10.017796513458148,"endHours":11.017796513458148,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:01","end":"12:01","startHours":11.017796513458148,"endHours":12.017796513458148,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:01","end":"13:01","startHours":12.017796513458148,"endHours":13.017796513458148,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:01","end":"14:01","startHours":13.017796513458148,"endHours":14.017796513458148,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:01","end":"15:01","startHours":14.017796513458148,"endHours":15.017796513458148,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:01","end":"16:01","startHours":15.017796513458148,"endHours":16.017796513458148,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:01","end":"17:01","startHours":16.017796513458148,"endHours":17.017796513458148,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:01","end":"18:01","startHours":17.017796513458148,"endHours":18.017796513458148,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:01","end":"19:01","startHours":18.017796513458148,"endHours":19.017796513458148,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:01","end":"20:01","startHours":19.017796513458148,"endHours":20.017796513458148,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:01","end":"21:01","startHours":20.017796513458148,"endHours":21.017796513458148,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:01","end":"22:01","startHours":21.017796513458148,"endHours":22.017796513458148,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:01","end":"23:01","startHours":22.017796513458148,"endHours":23.017796513458148,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:01","end":"00:01","startHours":23.017796513458148,"endHours":24.017796513458148,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:01","end":"01:01","startHours":24.017796513458148,"endHours":25.017796513458148,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:01","end":"02:01","startHours":25.017796513458148,"endHours":26.017796513458148,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:01","end":"03:01","startHours":26.017796513458148,"endHours":27.017796513458148,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:01","end":"04:01","startHours":27.017796513458148,"endHours":28.017796513458148,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:01","end":"05:01","startHours":28.017796513458148,"endHours":29.017796513458148,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:01","end":"06:01","startHours":29.017796513458148,"endHours":30.017796513458148,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"South-West","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-21.728244501918255,"eotMinutes":10.131050600400467,"ayanamsa":22.7482}},"calendars":{"vikram_samvat":1977,"vikram_samvatsara":"Śrīmukha","saka_samvat":1842,"saka_samvatsara":"Raudra","bengali_samvat":1327,"malayalam_era":1096,"nanakshahi_year":451,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","lunar_month_amanta":"Kārtika","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 Kṛṣṇa Ṣaṣṭhī · Vikram 1977 Śrīmukha · Śaka 1842 Raudra"},"festivals":[],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"howrah"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga December 1, 1920 CE · Howrah, West Bengal · Vidhyamitra","description":"December 1, 1920 CE for Howrah, West Bengal: Kṛṣṇa Ṣaṣṭhī, sūryodaya 06:01, sūryāsta 16:53.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/howrah/1920-12-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/howrah/1920-12-01","sa":"https://sa.vidhyamitra.com/city/howrah/1920-12-01","hi":"https://hi.vidhyamitra.com/city/howrah/1920-12-01","x-default":"https://vidhyamitra.com/city/howrah/1920-12-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T03:22:06.324Z","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":"2026-06-01T03:22:06.324Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T03:22:06.324Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}