{"id":"vidhyamitra:city-day:howrah:2012-01-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/howrah/2012-01-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2012-01-18","date_display":"January 18, 2012 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":2012,"month":1,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455944.770833,"kali_year":5113,"ahargana":1867479.2708,"sun":{"sidereal_longitude":273.1874,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":205.7426,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":292.5552,"elapsed_within_tithi_degrees":4.5552},"nakshatra":{"number":16,"name":"Viśākhā","pada":2,"moon_longitude":205.7426,"elapsed_within_degrees":5.7426},"yoga":{"number":9,"name":"Śūla","sum_longitude":118.93},"karana":{"half_tithi_index":48,"name":"Vaṇija"},"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":2012,"month":1,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455944.770833,"ahargana":1867479.2708,"kali_year":5113,"ayanamsa_lahiri":24.0213,"grahas":{"sun":{"sidereal_longitude":273.30820700000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":205.10510699999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false,"latitude":-1.9864},"mars":{"sidereal_longitude":148.64290700000004,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":260.4418069999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":7.091206999999997,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"venus":{"sidereal_longitude":310.42670699999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":184.85330699999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":231.9613,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":51.9613,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"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":2012,"month":1,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455944.770833,"kali_year":5113,"ahargana":1867479.2708,"sun":{"sidereal_longitude":273.1874,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":205.7426,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":292.5552,"elapsed_within_tithi_degrees":4.5552},"nakshatra":{"number":16,"name":"Viśākhā","pada":2,"moon_longitude":205.7426,"elapsed_within_degrees":5.7426},"yoga":{"number":9,"name":"Śūla","sum_longitude":118.93},"karana":{"half_tithi_index":48,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.986,"elongation":67.445},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.986,"opposition_distance":112.555}},"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":"06:20","sunsetLocal":"17:15","solarNoonLocal":"11:47","dayLengthHours":10.924201133425523,"dayLengthDisplay":"10 Hours 55 Mins 27 Secs","nightLengthDisplay":"13 Hours 04 Mins 33 Secs","moonriseLocal":"01:42","moonsetLocal":"12:47","rahuKala":{"name":"Rāhu Kāla","start":"11:47","end":"13:09","startHours":11.788247159694828,"endHours":13.153772301373019,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:42","end":"09:03","startHours":7.691671734660257,"endHours":9.057196876338448,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:25","end":"11:47","startHours":10.422722018016637,"endHours":11.788247159694828,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:53","end":"09:14","startHours":8.875126857448022,"endHours":9.239266895228873,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:47","end":"07:04","startHours":6.78132164020813,"endHours":7.072633670432811,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:25","end":"12:09","startHours":11.424107121913977,"endHours":12.15238719747568,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:52","end":"05:36","startHours":4.869586441858663,"endHours":5.597866517420365,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:25","end":"06:20","startHours":5.415796498529939,"endHours":6.326146592982067,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:37","end":"14:20","startHours":13.60894734859908,"endHours":14.337227424160782,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:03","end":"17:27","startHours":17.05034772640759,"endHours":17.45034772640759,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:15","end":"17:42","startHours":17.25034772640759,"endHours":17.705522773633653,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:00","end":"18:45","startHours":17.00034772640759,"endHours":18.75034772640759,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:25","end":"00:09","startHours":23.424107121913977,"endHours":24.152387197475676,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:20","end":"07:42","startHours":6.326146592982067,"endHours":7.691671734660257,"quality":"auspicious"},{"name":"Amṛta","start":"07:42","end":"09:03","startHours":7.691671734660257,"endHours":9.057196876338448,"quality":"auspicious"},{"name":"Kāla","start":"09:03","end":"10:25","startHours":9.057196876338448,"endHours":10.422722018016637,"quality":"inauspicious"},{"name":"Śubha","start":"10:25","end":"11:47","startHours":10.422722018016637,"endHours":11.788247159694828,"quality":"auspicious"},{"name":"Roga","start":"11:47","end":"13:09","startHours":11.788247159694828,"endHours":13.153772301373019,"quality":"inauspicious"},{"name":"Udveg","start":"13:09","end":"14:31","startHours":13.153772301373019,"endHours":14.519297443051208,"quality":"inauspicious"},{"name":"Chala","start":"14:31","end":"15:53","startHours":14.519297443051208,"endHours":15.884822584729399,"quality":"neutral"},{"name":"Labha","start":"15:53","end":"17:15","startHours":15.884822584729399,"endHours":17.25034772640759,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"17:15","end":"18:53","startHours":17.25034772640759,"endHours":18.8848225847294,"quality":"inauspicious"},{"name":"Chala","start":"18:53","end":"20:31","startHours":18.8848225847294,"endHours":20.519297443051208,"quality":"neutral"},{"name":"Labha","start":"20:31","end":"22:09","startHours":20.519297443051208,"endHours":22.153772301373017,"quality":"auspicious"},{"name":"Amṛta","start":"22:09","end":"23:47","startHours":22.153772301373017,"endHours":23.788247159694826,"quality":"auspicious"},{"name":"Kāla","start":"23:47","end":"01:25","startHours":23.788247159694826,"endHours":25.422722018016636,"quality":"inauspicious"},{"name":"Śubha","start":"01:25","end":"03:03","startHours":25.422722018016636,"endHours":27.05719687633845,"quality":"auspicious"},{"name":"Roga","start":"03:03","end":"04:42","startHours":27.05719687633845,"endHours":28.691671734660257,"quality":"inauspicious"},{"name":"Udveg","start":"04:42","end":"06:20","startHours":28.691671734660257,"endHours":30.326146592982067,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:20","end":"07:20","startHours":6.326146592982067,"endHours":7.326146592982067,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:20","end":"08:20","startHours":7.326146592982067,"endHours":8.326146592982067,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:20","end":"09:20","startHours":8.326146592982067,"endHours":9.326146592982067,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:20","end":"10:20","startHours":9.326146592982067,"endHours":10.326146592982067,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:20","end":"11:20","startHours":10.326146592982067,"endHours":11.326146592982067,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:20","end":"12:20","startHours":11.326146592982067,"endHours":12.326146592982067,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:20","end":"13:20","startHours":12.326146592982067,"endHours":13.326146592982067,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:20","end":"14:20","startHours":13.326146592982067,"endHours":14.326146592982067,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:20","end":"15:20","startHours":14.326146592982067,"endHours":15.326146592982067,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:20","end":"16:20","startHours":15.326146592982067,"endHours":16.326146592982067,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:20","end":"17:20","startHours":16.326146592982067,"endHours":17.326146592982067,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:20","end":"18:20","startHours":17.326146592982067,"endHours":18.326146592982067,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:20","end":"19:20","startHours":18.326146592982067,"endHours":19.326146592982067,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:20","end":"20:20","startHours":19.326146592982067,"endHours":20.326146592982067,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:20","end":"21:20","startHours":20.326146592982067,"endHours":21.326146592982067,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:20","end":"22:20","startHours":21.326146592982067,"endHours":22.326146592982067,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:20","end":"23:20","startHours":22.326146592982067,"endHours":23.326146592982067,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:20","end":"00:20","startHours":23.326146592982067,"endHours":24.326146592982067,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:20","end":"01:20","startHours":24.326146592982067,"endHours":25.326146592982067,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:20","end":"02:20","startHours":25.326146592982067,"endHours":26.326146592982067,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:20","end":"03:20","startHours":26.326146592982067,"endHours":27.326146592982067,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:20","end":"04:20","startHours":27.326146592982067,"endHours":28.326146592982067,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:20","end":"05:20","startHours":28.326146592982067,"endHours":29.326146592982067,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:20","end":"06:20","startHours":29.326146592982067,"endHours":30.326146592982067,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"North","rahuVasa":"South-West","anandadiYoga":{"name":"Dhātṛ","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-20.691614100486987,"eotMinutes":-10.349229581689698,"ayanamsa":24.0213}},"calendars":{"vikram_samvat":2069,"vikram_samvatsara":"Viśvāvasu","saka_samvat":1934,"saka_samvatsara":"Nandana","bengali_samvat":1419,"malayalam_era":1188,"nanakshahi_year":543,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Daśamī · Vikram 2069 Viśvāvasu · Śaka 1934 Nandana"},"festivals":[{"id":"makara-sankranti","name":"Makara Saṅkrānti (Uttarāyaṇa)","name_sanskrit":"मकर सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Capricorn; Uttarāyaṇa (north-going) begins. Bhīṣma's chosen mahaprasthāna time.","vrata":true,"detection":{"sun_rashi":"Makara"},"precedence":1,"sources":["Mahābhārata Bhīṣma-Stuti","Sūrya-Siddhānta"]},{"id":"pongal","name":"Pongal / Thai Pongal","name_sanskrit":"पोङ्गल","tradition":"Regional","associated_deity":"Sūrya Bhagavān","significance":"Tamil 4-day harvest festival; coincides with Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi":"Makara"},"precedence":2}],"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":[{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","url":"/day/-0562-04-11","relevance":0.5}]},"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 January 18, 2012 CE · Howrah, West Bengal · Vidhyamitra","description":"January 18, 2012 CE for Howrah, West Bengal: Kṛṣṇa Daśamī, sūryodaya 06:20, sūryāsta 17:15.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/howrah/2012-01-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/howrah/2012-01-18","sa":"https://sa.vidhyamitra.com/city/howrah/2012-01-18","hi":"https://hi.vidhyamitra.com/city/howrah/2012-01-18","x-default":"https://vidhyamitra.com/city/howrah/2012-01-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T22:33:55.414Z","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":"2026-05-15T22:33:55.415Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T22:33:55.415Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}