{"id":"vidhyamitra:city-day:howrah:2170-09-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/howrah/2170-09-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2170-09-01","date_display":"September 1, 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":9,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2513879.770833,"kali_year":5272,"ahargana":1925414.2708,"sun":{"sidereal_longitude":131.4874,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":15.8043,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":244.3169,"elapsed_within_tithi_degrees":4.3169},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1,"moon_longitude":15.8043,"elapsed_within_degrees":2.471},"yoga":{"number":12,"name":"Dhruva","sum_longitude":147.2917},"karana":{"half_tithi_index":40,"name":"Gara"},"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":9,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2513879.770833,"ahargana":1925414.2708,"kali_year":5272,"ayanamsa_lahiri":26.2371,"grahas":{"sun":{"sidereal_longitude":132.57906400000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":12.801864000000023,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false,"latitude":-2.005},"mars":{"sidereal_longitude":188.89276399999994,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":121.81106399999999,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":146.32816400000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":146.496964,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4},"retrograde":true},"saturn":{"sidereal_longitude":304.5833640000001,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":42.2862,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":222.2862,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","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":2170,"month":9,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2513879.770833,"kali_year":5272,"ahargana":1925414.2708,"sun":{"sidereal_longitude":131.4874,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":15.8043,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":21,"name":"Ṣaṣṭhī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Ṣaṣṭhī","elongation_degrees":244.3169,"elapsed_within_tithi_degrees":4.3169},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1,"moon_longitude":15.8043,"elapsed_within_degrees":2.471},"yoga":{"number":12,"name":"Dhruva","sum_longitude":147.2917},"karana":{"half_tithi_index":40,"name":"Gara"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.005,"elongation":115.683},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.005,"opposition_distance":64.317}},"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":"05:19","sunsetLocal":"17:54","solarNoonLocal":"11:36","dayLengthHours":12.583871700930791,"dayLengthDisplay":"12 Hours 35 Mins 02 Secs","nightLengthDisplay":"11 Hours 24 Mins 58 Secs","moonriseLocal":"21:10","moonsetLocal":"10:05","rahuKala":{"name":"Rāhu Kāla","start":"08:28","end":"10:02","startHours":8.461858444582749,"endHours":10.034842407199097,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:11","end":"14:45","startHours":13.180810332431795,"endHours":14.753794295048143,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:19","end":"06:53","startHours":5.3158905193500505,"endHours":6.8888744819664,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:15","end":"08:40","startHours":8.252127249567234,"endHours":8.671589639598261,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:50","end":"06:11","startHours":5.840218506888833,"endHours":6.175788418913655,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:11","end":"12:02","startHours":11.18836397978442,"endHours":12.02728875984647,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:38","end":"04:29","startHours":3.638040959225945,"endHours":4.476965739287998,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:16","end":"05:19","startHours":4.267234544272485,"endHours":5.3158905193500505,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:42","end":"14:33","startHours":13.705138319970578,"endHours":14.54406310003263,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:42","end":"18:06","startHours":17.699762220280842,"endHours":18.09976222028084,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:54","end":"18:25","startHours":17.89976222028084,"endHours":18.424090207819624,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:39","end":"19:24","startHours":17.64976222028084,"endHours":19.39976222028084,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:11","end":"00:02","startHours":23.18836397978442,"endHours":24.02728875984647,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:19","end":"06:53","startHours":5.3158905193500505,"endHours":6.8888744819664,"quality":"inauspicious"},{"name":"Śubha","start":"06:53","end":"08:28","startHours":6.8888744819664,"endHours":8.461858444582749,"quality":"auspicious"},{"name":"Roga","start":"08:28","end":"10:02","startHours":8.461858444582749,"endHours":10.034842407199097,"quality":"inauspicious"},{"name":"Udveg","start":"10:02","end":"11:36","startHours":10.034842407199097,"endHours":11.607826369815445,"quality":"inauspicious"},{"name":"Chala","start":"11:36","end":"13:11","startHours":11.607826369815445,"endHours":13.180810332431795,"quality":"neutral"},{"name":"Labha","start":"13:11","end":"14:45","startHours":13.180810332431795,"endHours":14.753794295048143,"quality":"auspicious"},{"name":"Amṛta","start":"14:45","end":"16:20","startHours":14.753794295048143,"endHours":16.326778257664493,"quality":"auspicious"},{"name":"Kāla","start":"16:20","end":"17:54","startHours":16.326778257664493,"endHours":17.89976222028084,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:54","end":"19:20","startHours":17.89976222028084,"endHours":19.326778257664493,"quality":"auspicious"},{"name":"Amṛta","start":"19:20","end":"20:45","startHours":19.326778257664493,"endHours":20.753794295048145,"quality":"auspicious"},{"name":"Kāla","start":"20:45","end":"22:11","startHours":20.753794295048145,"endHours":22.180810332431797,"quality":"inauspicious"},{"name":"Śubha","start":"22:11","end":"23:36","startHours":22.180810332431797,"endHours":23.607826369815445,"quality":"auspicious"},{"name":"Roga","start":"23:36","end":"01:02","startHours":23.607826369815445,"endHours":25.034842407199097,"quality":"inauspicious"},{"name":"Udveg","start":"01:02","end":"02:28","startHours":25.034842407199097,"endHours":26.46185844458275,"quality":"inauspicious"},{"name":"Chala","start":"02:28","end":"03:53","startHours":26.46185844458275,"endHours":27.888874481966397,"quality":"neutral"},{"name":"Labha","start":"03:53","end":"05:19","startHours":27.888874481966397,"endHours":29.31589051935005,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:19","end":"06:19","startHours":5.3158905193500505,"endHours":6.3158905193500505,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:19","end":"07:19","startHours":6.3158905193500505,"endHours":7.3158905193500505,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:19","end":"08:19","startHours":7.3158905193500505,"endHours":8.31589051935005,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:19","end":"09:19","startHours":8.31589051935005,"endHours":9.31589051935005,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:19","end":"10:19","startHours":9.31589051935005,"endHours":10.31589051935005,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:19","end":"11:19","startHours":10.31589051935005,"endHours":11.31589051935005,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:19","end":"12:19","startHours":11.31589051935005,"endHours":12.31589051935005,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:19","end":"13:19","startHours":12.31589051935005,"endHours":13.31589051935005,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:19","end":"14:19","startHours":13.31589051935005,"endHours":14.31589051935005,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:19","end":"15:19","startHours":14.31589051935005,"endHours":15.31589051935005,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:19","end":"16:19","startHours":15.31589051935005,"endHours":16.31589051935005,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:19","end":"17:19","startHours":16.31589051935005,"endHours":17.31589051935005,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:19","end":"18:19","startHours":17.31589051935005,"endHours":18.31589051935005,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:19","end":"19:19","startHours":18.31589051935005,"endHours":19.31589051935005,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:19","end":"20:19","startHours":19.31589051935005,"endHours":20.31589051935005,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:19","end":"21:19","startHours":20.31589051935005,"endHours":21.31589051935005,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:19","end":"22:19","startHours":21.31589051935005,"endHours":22.31589051935005,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:19","end":"23:19","startHours":22.31589051935005,"endHours":23.31589051935005,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:19","end":"00:19","startHours":23.31589051935005,"endHours":24.31589051935005,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:19","end":"01:19","startHours":24.31589051935005,"endHours":25.31589051935005,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:19","end":"02:19","startHours":25.31589051935005,"endHours":26.31589051935005,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:19","end":"03:19","startHours":26.31589051935005,"endHours":27.31589051935005,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:19","end":"04:19","startHours":27.31589051935005,"endHours":28.31589051935005,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:19","end":"05:19","startHours":28.31589051935005,"endHours":29.31589051935005,"planetary_lord":"Mercury"}],"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"East","anandadiYoga":{"name":"Cara","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":8.263466004627553,"eotMinutes":0.47601781107335894,"ayanamsa":26.2371}},"calendars":{"vikram_samvat":2227,"vikram_samvatsara":"Subhānu","saka_samvat":2092,"saka_samvatsara":"Pramoda","bengali_samvat":1577,"malayalam_era":1346,"nanakshahi_year":701,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Śrāvaṇa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Kṛṣṇa Ṣaṣṭhī · Vikram 2227 Subhānu · Śaka 2092 Pramoda"},"festivals":[{"id":"balarama-jayanti","name":"Balarāma Jayantī (Hala-Ṣaṣṭhī)","name_sanskrit":"बलराम जयन्ती","tradition":"Vaishnava","associated_deity":"Balarāma (Krishna's elder brother; ādi-śeṣa)","significance":"Birth of Bala-deva, Krishna's elder brother and Saṅkarṣaṇa.","vrata":true,"detection":{"tithi_number":21,"tithi_paksha":"Kṛṣṇa","lunar_month":"Bhādrapada"},"precedence":3,"sources":["Bhāgavata 10.2-3"]}],"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 September 1, 2170 CE · Howrah, West Bengal · Vidhyamitra","description":"September 1, 2170 CE for Howrah, West Bengal: Kṛṣṇa Ṣaṣṭhī, sūryodaya 05:19, sūryāsta 17:54.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/howrah/2170-09-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/howrah/2170-09-01","sa":"https://sa.vidhyamitra.com/city/howrah/2170-09-01","hi":"https://hi.vidhyamitra.com/city/howrah/2170-09-01","x-default":"https://vidhyamitra.com/city/howrah/2170-09-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T02:52:09.395Z","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":"2026-06-03T02:52:09.395Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T02:52:09.395Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}