{"id":"vidhyamitra:city-day:howrah:2170-10-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/howrah/2170-10-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2170-10-20","date_display":"October 20, 2170 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":2170,"month":10,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2513928.770833,"kali_year":5272,"ahargana":1925463.2708,"sun":{"sidereal_longitude":179.3963,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":304.0536,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":124.6573,"elapsed_within_tithi_degrees":4.6573},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":304.0536,"elapsed_within_degrees":10.7203},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":123.4499},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2170,"month":10,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2513928.770833,"ahargana":1925463.2708,"kali_year":5272,"ayanamsa_lahiri":26.2389,"grahas":{"sun":{"sidereal_longitude":180.539492,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":307.33679199999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false,"latitude":-4.4782},"mars":{"sidereal_longitude":222.499592,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":201.775892,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":156.83449199999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":137.37499200000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":301.921292,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":39.6899,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":219.6899,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"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":2170,"month":10,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2513928.770833,"kali_year":5272,"ahargana":1925463.2708,"sun":{"sidereal_longitude":179.3963,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":304.0536,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":124.6573,"elapsed_within_tithi_degrees":4.6573},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4,"moon_longitude":304.0536,"elapsed_within_degrees":10.7203},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":123.4499},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.478,"elongation":124.657},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.478,"opposition_distance":55.343}},"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":"05:35","sunsetLocal":"17:08","solarNoonLocal":"11:21","dayLengthHours":11.5429101666117,"dayLengthDisplay":"11 Hours 32 Mins 34 Secs","nightLengthDisplay":"12 Hours 27 Mins 26 Secs","moonriseLocal":"14:03","moonsetLocal":"01:34","rahuKala":{"name":"Rāhu Kāla","start":"08:28","end":"09:55","startHours":8.468417937609889,"endHours":9.911281708436352,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:48","end":"14:14","startHours":12.797009250089276,"endHours":14.23987302091574,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:35","end":"07:02","startHours":5.5826903959569645,"endHours":7.025554166783427,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:17","end":"08:40","startHours":8.276036101499695,"endHours":8.660799773720084,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:04","end":"06:22","startHours":6.063644986232452,"endHours":6.371455924008764,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"10:58","end":"11:44","startHours":10.969381807042424,"endHours":11.738909151483202,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:03","end":"04:49","startHours":4.0436357070754045,"endHours":4.8131630515161845,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:37","end":"05:35","startHours":4.620781215405989,"endHours":5.5826903959569645,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:17","end":"14:03","startHours":13.277963840364764,"endHours":14.047491184805544,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:56","end":"17:20","startHours":16.925600562568665,"endHours":17.325600562568663,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:08","end":"17:36","startHours":17.125600562568664,"endHours":17.60655515284415,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:53","end":"18:38","startHours":16.875600562568664,"endHours":18.625600562568664,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"22:58","end":"23:44","startHours":22.96938180704242,"endHours":23.738909151483202,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:35","end":"07:02","startHours":5.5826903959569645,"endHours":7.025554166783427,"quality":"inauspicious"},{"name":"Śubha","start":"07:02","end":"08:28","startHours":7.025554166783427,"endHours":8.468417937609889,"quality":"auspicious"},{"name":"Roga","start":"08:28","end":"09:55","startHours":8.468417937609889,"endHours":9.911281708436352,"quality":"inauspicious"},{"name":"Udveg","start":"09:55","end":"11:21","startHours":9.911281708436352,"endHours":11.354145479262815,"quality":"inauspicious"},{"name":"Chala","start":"11:21","end":"12:48","startHours":11.354145479262815,"endHours":12.797009250089276,"quality":"neutral"},{"name":"Labha","start":"12:48","end":"14:14","startHours":12.797009250089276,"endHours":14.23987302091574,"quality":"auspicious"},{"name":"Amṛta","start":"14:14","end":"15:41","startHours":14.23987302091574,"endHours":15.682736791742201,"quality":"auspicious"},{"name":"Kāla","start":"15:41","end":"17:08","startHours":15.682736791742201,"endHours":17.125600562568664,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:08","end":"18:41","startHours":17.125600562568664,"endHours":18.6827367917422,"quality":"auspicious"},{"name":"Amṛta","start":"18:41","end":"20:14","startHours":18.6827367917422,"endHours":20.239873020915738,"quality":"auspicious"},{"name":"Kāla","start":"20:14","end":"21:48","startHours":20.239873020915738,"endHours":21.797009250089275,"quality":"inauspicious"},{"name":"Śubha","start":"21:48","end":"23:21","startHours":21.797009250089275,"endHours":23.354145479262815,"quality":"auspicious"},{"name":"Roga","start":"23:21","end":"00:55","startHours":23.354145479262815,"endHours":24.911281708436352,"quality":"inauspicious"},{"name":"Udveg","start":"00:55","end":"02:28","startHours":24.911281708436352,"endHours":26.46841793760989,"quality":"inauspicious"},{"name":"Chala","start":"02:28","end":"04:02","startHours":26.46841793760989,"endHours":28.02555416678343,"quality":"neutral"},{"name":"Labha","start":"04:02","end":"05:35","startHours":28.02555416678343,"endHours":29.582690395956966,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:35","end":"06:35","startHours":5.5826903959569645,"endHours":6.5826903959569645,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:35","end":"07:35","startHours":6.5826903959569645,"endHours":7.5826903959569645,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:35","end":"08:35","startHours":7.5826903959569645,"endHours":8.582690395956964,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:35","end":"09:35","startHours":8.582690395956964,"endHours":9.582690395956964,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:35","end":"10:35","startHours":9.582690395956964,"endHours":10.582690395956964,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:35","end":"11:35","startHours":10.582690395956964,"endHours":11.582690395956964,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:35","end":"12:35","startHours":11.582690395956964,"endHours":12.582690395956964,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:35","end":"13:35","startHours":12.582690395956964,"endHours":13.582690395956964,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:35","end":"14:35","startHours":13.582690395956964,"endHours":14.582690395956964,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:35","end":"15:35","startHours":14.582690395956964,"endHours":15.582690395956964,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:35","end":"16:35","startHours":15.582690395956964,"endHours":16.582690395956966,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:35","end":"17:35","startHours":16.582690395956966,"endHours":17.582690395956966,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:35","end":"18:35","startHours":17.582690395956966,"endHours":18.582690395956966,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:35","end":"19:35","startHours":18.582690395956966,"endHours":19.582690395956966,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:35","end":"20:35","startHours":19.582690395956966,"endHours":20.582690395956966,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:35","end":"21:35","startHours":20.582690395956966,"endHours":21.582690395956966,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:35","end":"22:35","startHours":21.582690395956966,"endHours":22.582690395956966,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:35","end":"23:35","startHours":22.582690395956966,"endHours":23.582690395956966,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:35","end":"00:35","startHours":23.582690395956966,"endHours":24.582690395956966,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:35","end":"01:35","startHours":24.582690395956966,"endHours":25.582690395956966,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:35","end":"02:35","startHours":25.582690395956966,"endHours":26.582690395956966,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:35","end":"03:35","startHours":26.582690395956966,"endHours":27.582690395956966,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:35","end":"04:35","startHours":27.582690395956966,"endHours":28.582690395956966,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:35","end":"05:35","startHours":28.582690395956966,"endHours":29.582690395956966,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"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":"East (Pūrva)","chandraVasa":"South","rahuVasa":"East","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-10.322858970162219,"eotMinutes":15.696871244231174,"ayanamsa":26.2389}},"calendars":{"vikram_samvat":2227,"vikram_samvatsara":"Subhānu","saka_samvat":2092,"saka_samvatsara":"Pramoda","bengali_samvat":1577,"malayalam_era":1346,"nanakshahi_year":701,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Āśvina","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Śukla Ekādaśī · Vikram 2227 Subhānu · Śaka 2092 Pramoda"},"festivals":[{"id":"pashankusha-ekadashi","name":"Pāśāṅkuśā Ekādaśī","name_sanskrit":"पाशाङ्कुशा एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Padmanābha (Viṣṇu)","significance":"Confers strength + wealth + son; equivalent to 1000 Aśvamedha-yajñas.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Āśvina"},"precedence":4},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5},{"id":"tula-sankranti","name":"Tulā Saṅkrānti","name_sanskrit":"तुला सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Libra.","vrata":false,"detection":{"sun_rashi_ingress":"Tulā"},"precedence":5}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 October 20, 2170 CE · Howrah, West Bengal · Vidhyamitra","description":"October 20, 2170 CE for Howrah, West Bengal: Śukla Ekādaśī, sūryodaya 05:35, sūryāsta 17:08.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/howrah/2170-10-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/howrah/2170-10-20","sa":"https://sa.vidhyamitra.com/city/howrah/2170-10-20","hi":"https://hi.vidhyamitra.com/city/howrah/2170-10-20","x-default":"https://vidhyamitra.com/city/howrah/2170-10-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T04:04:20.403Z","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":"2026-06-03T04:04:20.403Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T04:04:20.403Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}