{"id":"vidhyamitra:city-day:howrah:-3101-02-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/howrah/-3101-02-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"-3101-02-01","date_display":"February 1, 3102 BCE","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":-3101,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":588448.770833,"kali_year":0,"ahargana":-16.7292,"sun":{"sidereal_longitude":345.8812,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":134.1366,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":148.2554,"elapsed_within_tithi_degrees":4.2554},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1,"moon_longitude":134.1366,"elapsed_within_degrees":0.8033},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":120.0178},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":-3101,"month":2,"day":1,"hour":6,"minute":30,"calendar":"julian"},"julian_day":588448.770833,"ahargana":-16.7292,"kali_year":0,"ayanamsa_lahiri":-47.4035,"grahas":{"sun":{"sidereal_longitude":345.8812,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":134.1366,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false,"latitude":-3.2761},"mars":{"sidereal_longitude":352.6896,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":326.951,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":357.4078,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":340.28,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":350.5194,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":180.8864,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":0.8864,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","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":-3101,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"julian"},"julian_day":588448.770833,"kali_year":0,"ahargana":-16.7292,"sun":{"sidereal_longitude":345.8812,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":134.1366,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":148.2554,"elapsed_within_tithi_degrees":4.2554},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1,"moon_longitude":134.1366,"elapsed_within_degrees":0.8033},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":120.0178},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.276,"elongation":148.255},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.276,"opposition_distance":31.745}},"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":"06:22","sunsetLocal":"17:19","solarNoonLocal":"11:51","dayLengthHours":10.938602083285517,"dayLengthDisplay":"10 Hours 56 Mins 19 Secs","nightLengthDisplay":"13 Hours 03 Mins 41 Secs","moonriseLocal":"14:59","moonsetLocal":"04:28","rahuKala":{"name":"Rāhu Kāla","start":"14:35","end":"15:57","startHours":14.578566322777974,"endHours":15.945891583188661,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:07","end":"10:29","startHours":9.109265281135215,"endHours":10.476590541545903,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:51","end":"13:13","startHours":11.843915801956594,"endHours":13.211241062367282,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:56","end":"09:17","startHours":8.92695524641379,"endHours":9.29157531585664,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:50","end":"07:07","startHours":6.830389847117399,"endHours":7.122085902671679,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:29","end":"12:13","startHours":11.479295732513744,"endHours":12.208535871399445,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:55","end":"05:39","startHours":4.916134482542433,"endHours":5.645374621428134,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:28","end":"06:22","startHours":5.463064586706709,"endHours":6.374614760313835,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:40","end":"14:24","startHours":13.667016149170847,"endHours":14.396256288056549,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:07","end":"17:31","startHours":17.113216843599353,"endHours":17.513216843599352,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:19","end":"17:46","startHours":17.313216843599353,"endHours":17.768991930402915,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:04","end":"18:49","startHours":17.063216843599353,"endHours":18.813216843599353,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:29","end":"00:13","startHours":23.479295732513744,"endHours":24.208535871399445,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:22","end":"07:45","startHours":6.374614760313835,"endHours":7.741940020724525,"quality":"inauspicious"},{"name":"Udveg","start":"07:45","end":"09:07","startHours":7.741940020724525,"endHours":9.109265281135215,"quality":"inauspicious"},{"name":"Chala","start":"09:07","end":"10:29","startHours":9.109265281135215,"endHours":10.476590541545903,"quality":"neutral"},{"name":"Labha","start":"10:29","end":"11:51","startHours":10.476590541545903,"endHours":11.843915801956594,"quality":"auspicious"},{"name":"Amṛta","start":"11:51","end":"13:13","startHours":11.843915801956594,"endHours":13.211241062367282,"quality":"auspicious"},{"name":"Kāla","start":"13:13","end":"14:35","startHours":13.211241062367282,"endHours":14.578566322777974,"quality":"inauspicious"},{"name":"Śubha","start":"14:35","end":"15:57","startHours":14.578566322777974,"endHours":15.945891583188661,"quality":"auspicious"},{"name":"Roga","start":"15:57","end":"17:19","startHours":15.945891583188661,"endHours":17.313216843599353,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:19","end":"18:57","startHours":17.313216843599353,"endHours":18.94589158318866,"quality":"inauspicious"},{"name":"Śubha","start":"18:57","end":"20:35","startHours":18.94589158318866,"endHours":20.578566322777974,"quality":"auspicious"},{"name":"Roga","start":"20:35","end":"22:13","startHours":20.578566322777974,"endHours":22.211241062367286,"quality":"inauspicious"},{"name":"Udveg","start":"22:13","end":"23:51","startHours":22.211241062367286,"endHours":23.843915801956594,"quality":"inauspicious"},{"name":"Chala","start":"23:51","end":"01:29","startHours":23.843915801956594,"endHours":25.476590541545903,"quality":"neutral"},{"name":"Labha","start":"01:29","end":"03:07","startHours":25.476590541545903,"endHours":27.109265281135215,"quality":"auspicious"},{"name":"Amṛta","start":"03:07","end":"04:45","startHours":27.109265281135215,"endHours":28.741940020724527,"quality":"auspicious"},{"name":"Kāla","start":"04:45","end":"06:22","startHours":28.741940020724527,"endHours":30.374614760313836,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:22","end":"07:22","startHours":6.374614760313835,"endHours":7.374614760313835,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:22","end":"08:22","startHours":7.374614760313835,"endHours":8.374614760313836,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:22","end":"09:22","startHours":8.374614760313836,"endHours":9.374614760313836,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:22","end":"10:22","startHours":9.374614760313836,"endHours":10.374614760313836,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:22","end":"11:22","startHours":10.374614760313836,"endHours":11.374614760313836,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:22","end":"12:22","startHours":11.374614760313836,"endHours":12.374614760313836,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:22","end":"13:22","startHours":12.374614760313836,"endHours":13.374614760313836,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:22","end":"14:22","startHours":13.374614760313836,"endHours":14.374614760313836,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:22","end":"15:22","startHours":14.374614760313836,"endHours":15.374614760313836,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:22","end":"16:22","startHours":15.374614760313836,"endHours":16.374614760313836,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:22","end":"17:22","startHours":16.374614760313836,"endHours":17.374614760313836,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:22","end":"18:22","startHours":17.374614760313836,"endHours":18.374614760313836,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:22","end":"19:22","startHours":18.374614760313836,"endHours":19.374614760313836,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:22","end":"20:22","startHours":19.374614760313836,"endHours":20.374614760313836,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:22","end":"21:22","startHours":20.374614760313836,"endHours":21.374614760313836,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:22","end":"22:22","startHours":21.374614760313836,"endHours":22.374614760313836,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:22","end":"23:22","startHours":22.374614760313836,"endHours":23.374614760313836,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:22","end":"00:22","startHours":23.374614760313836,"endHours":24.374614760313836,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:22","end":"01:22","startHours":24.374614760313836,"endHours":25.374614760313836,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:22","end":"02:22","startHours":25.374614760313836,"endHours":26.374614760313836,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:22","end":"03:22","startHours":26.374614760313836,"endHours":27.374614760313836,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:22","end":"04:22","startHours":27.374614760313836,"endHours":28.374614760313836,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:22","end":"05:22","startHours":28.374614760313836,"endHours":29.374614760313836,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:22","end":"06:22","startHours":29.374614760313836,"endHours":30.374614760313836,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"West","rahuVasa":"North","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-20.46333631823283,"eotMinutes":-13.689348117395623,"ayanamsa":-47.4035}},"calendars":{"vikram_samvat":-3044,"saka_samvat":-3179,"bengali_samvat":-3694,"malayalam_era":-3925,"nanakshahi_year":-4570,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Trayodaśī · Vikram -3044 undefined · Śaka -3179 undefined"},"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":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":true,"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 February 1, 3102 BCE · Howrah, West Bengal · Vidhyamitra","description":"February 1, 3102 BCE for Howrah, West Bengal: Śukla Trayodaśī, sūryodaya 06:22, sūryāsta 17:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/howrah/-3101-02-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/howrah/-3101-02-01","sa":"https://sa.vidhyamitra.com/city/howrah/-3101-02-01","hi":"https://hi.vidhyamitra.com/city/howrah/-3101-02-01","x-default":"https://vidhyamitra.com/city/howrah/-3101-02-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T03:31:10.307Z","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":"2026-06-03T03:31:10.307Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T03:31:10.307Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}