{"id":"vidhyamitra:city-day:howrah:2015-08-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/howrah/2015-08-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2015-08-13","date_display":"August 13, 2015 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":2015,"month":8,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457247.770833,"kali_year":5117,"ahargana":1868782.2708,"sun":{"sidereal_longitude":115.2982,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":97.7802,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":342.4821,"elapsed_within_tithi_degrees":6.4821},"nakshatra":{"number":8,"name":"Puṣya","pada":2,"moon_longitude":97.7802,"elapsed_within_degrees":4.4469},"yoga":{"number":16,"name":"Siddhi","sum_longitude":213.0784},"karana":{"half_tithi_index":57,"name":"Śakuni"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2015,"month":8,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2457247.770833,"ahargana":1868782.2708,"kali_year":5117,"ayanamsa_lahiri":24.0711,"grahas":{"sun":{"sidereal_longitude":115.93542300000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":98.07122300000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false,"latitude":-4.0823},"mars":{"sidereal_longitude":98.36932300000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":134.58242299999995,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":125.515623,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":119.99882300000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":true},"saturn":{"sidereal_longitude":214.08612300000004,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":162.9221,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":342.9221,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","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":2015,"month":8,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457247.770833,"kali_year":5117,"ahargana":1868782.2708,"sun":{"sidereal_longitude":115.2982,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":97.7802,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":342.4821,"elapsed_within_tithi_degrees":6.4821},"nakshatra":{"number":8,"name":"Puṣya","pada":2,"moon_longitude":97.7802,"elapsed_within_degrees":4.4469},"yoga":{"number":16,"name":"Siddhi","sum_longitude":213.0784},"karana":{"half_tithi_index":57,"name":"Śakuni"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.082,"elongation":17.518},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.082,"opposition_distance":162.482}},"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":"05:12","sunsetLocal":"18:11","solarNoonLocal":"11:42","dayLengthHours":12.967655569303925,"dayLengthDisplay":"12 Hours 58 Mins 04 Secs","nightLengthDisplay":"11 Hours 01 Mins 56 Secs","moonriseLocal":"03:53","moonsetLocal":"17:07","rahuKala":{"name":"Rāhu Kāla","start":"13:19","end":"14:56","startHours":13.312742291799914,"endHours":14.933699237962905,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"05:12","end":"06:50","startHours":5.207957560984961,"endHours":6.828914507147951,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:27","end":"10:04","startHours":8.449871453310942,"endHours":10.070828399473932,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:14","end":"08:40","startHours":8.23374386048921,"endHours":8.665999046132674,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:45","end":"06:06","startHours":5.7482765430392915,"endHours":6.094080691554063,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:16","end":"12:07","startHours":11.25953015999346,"endHours":12.12404053128039,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:29","end":"04:21","startHours":3.4789368184111042,"endHours":4.343447189698033,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:08","end":"05:12","startHours":4.127319596876301,"endHours":5.207957560984961,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:51","end":"14:43","startHours":13.853061273854244,"endHours":14.717571645141172,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:59","end":"18:23","startHours":17.975613130288888,"endHours":18.375613130288887,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:11","end":"18:43","startHours":18.175613130288887,"endHours":18.715932112343218,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:56","end":"19:41","startHours":17.925613130288887,"endHours":19.675613130288887,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:16","end":"00:07","startHours":23.25953015999346,"endHours":24.124040531280386,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"05:12","end":"06:50","startHours":5.207957560984961,"endHours":6.828914507147951,"quality":"auspicious"},{"name":"Roga","start":"06:50","end":"08:27","startHours":6.828914507147951,"endHours":8.449871453310942,"quality":"inauspicious"},{"name":"Udveg","start":"08:27","end":"10:04","startHours":8.449871453310942,"endHours":10.070828399473932,"quality":"inauspicious"},{"name":"Chala","start":"10:04","end":"11:42","startHours":10.070828399473932,"endHours":11.691785345636923,"quality":"neutral"},{"name":"Labha","start":"11:42","end":"13:19","startHours":11.691785345636923,"endHours":13.312742291799914,"quality":"auspicious"},{"name":"Amṛta","start":"13:19","end":"14:56","startHours":13.312742291799914,"endHours":14.933699237962905,"quality":"auspicious"},{"name":"Kāla","start":"14:56","end":"16:33","startHours":14.933699237962905,"endHours":16.554656184125896,"quality":"inauspicious"},{"name":"Śubha","start":"16:33","end":"18:11","startHours":16.554656184125896,"endHours":18.175613130288887,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:11","end":"19:33","startHours":18.175613130288887,"endHours":19.554656184125896,"quality":"auspicious"},{"name":"Kāla","start":"19:33","end":"20:56","startHours":19.554656184125896,"endHours":20.933699237962905,"quality":"inauspicious"},{"name":"Śubha","start":"20:56","end":"22:19","startHours":20.933699237962905,"endHours":22.312742291799914,"quality":"auspicious"},{"name":"Roga","start":"22:19","end":"23:42","startHours":22.312742291799914,"endHours":23.691785345636923,"quality":"inauspicious"},{"name":"Udveg","start":"23:42","end":"01:04","startHours":23.691785345636923,"endHours":25.070828399473932,"quality":"inauspicious"},{"name":"Chala","start":"01:04","end":"02:27","startHours":25.070828399473932,"endHours":26.449871453310944,"quality":"neutral"},{"name":"Labha","start":"02:27","end":"03:50","startHours":26.449871453310944,"endHours":27.828914507147953,"quality":"auspicious"},{"name":"Amṛta","start":"03:50","end":"05:12","startHours":27.828914507147953,"endHours":29.207957560984962,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:12","end":"06:12","startHours":5.207957560984961,"endHours":6.207957560984961,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"06:12","end":"07:12","startHours":6.207957560984961,"endHours":7.207957560984961,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"07:12","end":"08:12","startHours":7.207957560984961,"endHours":8.207957560984962,"planetary_lord":"Moon"},{"name":"Hora 4","start":"08:12","end":"09:12","startHours":8.207957560984962,"endHours":9.207957560984962,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"09:12","end":"10:12","startHours":9.207957560984962,"endHours":10.207957560984962,"planetary_lord":"Venus"},{"name":"Hora 6","start":"10:12","end":"11:12","startHours":10.207957560984962,"endHours":11.207957560984962,"planetary_lord":"Sun"},{"name":"Hora 7","start":"11:12","end":"12:12","startHours":11.207957560984962,"endHours":12.207957560984962,"planetary_lord":"Mars"},{"name":"Hora 8","start":"12:12","end":"13:12","startHours":12.207957560984962,"endHours":13.207957560984962,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"13:12","end":"14:12","startHours":13.207957560984962,"endHours":14.207957560984962,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"14:12","end":"15:12","startHours":14.207957560984962,"endHours":15.207957560984962,"planetary_lord":"Moon"},{"name":"Hora 11","start":"15:12","end":"16:12","startHours":15.207957560984962,"endHours":16.207957560984962,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"16:12","end":"17:12","startHours":16.207957560984962,"endHours":17.207957560984962,"planetary_lord":"Venus"},{"name":"Hora 13","start":"17:12","end":"18:12","startHours":17.207957560984962,"endHours":18.207957560984962,"planetary_lord":"Sun"},{"name":"Hora 14","start":"18:12","end":"19:12","startHours":18.207957560984962,"endHours":19.207957560984962,"planetary_lord":"Mars"},{"name":"Hora 15","start":"19:12","end":"20:12","startHours":19.207957560984962,"endHours":20.207957560984962,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"20:12","end":"21:12","startHours":20.207957560984962,"endHours":21.207957560984962,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"21:12","end":"22:12","startHours":21.207957560984962,"endHours":22.207957560984962,"planetary_lord":"Moon"},{"name":"Hora 18","start":"22:12","end":"23:12","startHours":22.207957560984962,"endHours":23.207957560984962,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"23:12","end":"00:12","startHours":23.207957560984962,"endHours":24.207957560984962,"planetary_lord":"Venus"},{"name":"Hora 20","start":"00:12","end":"01:12","startHours":24.207957560984962,"endHours":25.207957560984962,"planetary_lord":"Sun"},{"name":"Hora 21","start":"01:12","end":"02:12","startHours":25.207957560984962,"endHours":26.207957560984962,"planetary_lord":"Mars"},{"name":"Hora 22","start":"02:12","end":"03:12","startHours":26.207957560984962,"endHours":27.207957560984962,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"03:12","end":"04:12","startHours":27.207957560984962,"endHours":28.207957560984962,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"04:12","end":"05:12","startHours":28.207957560984962,"endHours":29.207957560984962,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"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":"South (Dakṣiṇa)","chandraVasa":"South-West","rahuVasa":"North-West","anandadiYoga":{"name":"Mātaṇga","quality":"Auspicious"},"drikRitu":"Varṣā (Monsoon) (Drik)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":14.81049264083683,"eotMinutes":-4.561520738215509,"ayanamsa":24.0711}},"calendars":{"vikram_samvat":2072,"vikram_samvatsara":"Kīlaka","saka_samvat":1937,"saka_samvatsara":"Manmatha","bengali_samvat":1422,"malayalam_era":1191,"nanakshahi_year":546,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Kṛṣṇa Pakṣa","solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Kṛṣṇa Caturdaśī · Vikram 2072 Kīlaka · Śaka 1937 Manmatha"},"festivals":[{"id":"karka-sankranti","name":"Karka Saṅkrānti (Dakṣiṇāyana)","name_sanskrit":"कर्क सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Cancer; Dakṣiṇāyana (south-going) begins. Devatā-rātri begins.","vrata":true,"detection":{"sun_rashi":"Karka"},"precedence":2},{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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 August 13, 2015 CE · Howrah, West Bengal · Vidhyamitra","description":"August 13, 2015 CE for Howrah, West Bengal: Kṛṣṇa Caturdaśī, sūryodaya 05:12, sūryāsta 18:11.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/howrah/2015-08-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/howrah/2015-08-13","sa":"https://sa.vidhyamitra.com/city/howrah/2015-08-13","hi":"https://hi.vidhyamitra.com/city/howrah/2015-08-13","x-default":"https://vidhyamitra.com/city/howrah/2015-08-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T20:33:20.528Z","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":"2026-05-15T20:33:20.528Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T20:33:20.528Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}