{"id":"vidhyamitra:city-day:howrah:2017-05-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/howrah/2017-05-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2017-05-13","date_display":"May 13, 2017 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":2017,"month":5,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457886.770833,"kali_year":5119,"ahargana":1869421.2708,"sun":{"sidereal_longitude":28.3463,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":234.5214,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":206.1751,"elapsed_within_tithi_degrees":2.1751},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3,"moon_longitude":234.5214,"elapsed_within_degrees":7.8547},"yoga":{"number":20,"name":"Śiva","sum_longitude":262.8677},"karana":{"half_tithi_index":34,"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":2017,"month":5,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2457886.770833,"ahargana":1869421.2708,"kali_year":5119,"ayanamsa_lahiri":24.0955,"grahas":{"sun":{"sidereal_longitude":28.391707999999994,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":231.841408,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false,"latitude":4.3369},"mars":{"sidereal_longitude":50.473208,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":3.1439080000000104,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":169.82480800000008,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":true},"venus":{"sidereal_longitude":344.399008,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":242.48290799999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":129.0648,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":309.0648,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","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":2017,"month":5,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2457886.770833,"kali_year":5119,"ahargana":1869421.2708,"sun":{"sidereal_longitude":28.3463,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":234.5214,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":206.1751,"elapsed_within_tithi_degrees":2.1751},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3,"moon_longitude":234.5214,"elapsed_within_degrees":7.8547},"yoga":{"number":20,"name":"Śiva","sum_longitude":262.8677},"karana":{"half_tithi_index":34,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.337,"elongation":153.825},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.337,"opposition_distance":26.175}},"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":"04:58","sunsetLocal":"18:09","solarNoonLocal":"11:33","dayLengthHours":13.188586254433266,"dayLengthDisplay":"13 Hours 11 Mins 19 Secs","nightLengthDisplay":"10 Hours 48 Mins 41 Secs","moonriseLocal":"19:44","moonsetLocal":"06:30","rahuKala":{"name":"Rāhu Kāla","start":"08:15","end":"09:54","startHours":8.256056123999077,"endHours":9.904629405803234,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:12","end":"14:51","startHours":13.201775969411552,"endHours":14.85034925121571,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"04:58","end":"06:36","startHours":4.95890956039076,"endHours":6.607482842194918,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:02","end":"08:29","startHours":8.036246353091855,"endHours":8.475865894906297,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:31","end":"05:52","startHours":5.508433987658813,"endHours":5.860129621110366,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:07","end":"12:00","startHours":11.11358314579295,"endHours":11.992822229421835,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:12","end":"04:05","startHours":3.200431393132991,"endHours":4.079670476761875,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"03:52","end":"04:58","startHours":3.859860705854654,"endHours":4.95890956039076,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:45","end":"14:38","startHours":13.751300396679605,"endHours":14.63053948030849,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:57","end":"18:21","startHours":17.947495814824027,"endHours":18.347495814824025,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:09","end":"18:42","startHours":18.147495814824026,"endHours":18.69702024209208,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:54","end":"19:39","startHours":17.897495814824026,"endHours":19.647495814824026,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:07","end":"00:00","startHours":23.11358314579295,"endHours":23.992822229421833,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"04:58","end":"06:36","startHours":4.95890956039076,"endHours":6.607482842194918,"quality":"inauspicious"},{"name":"Śubha","start":"06:36","end":"08:15","startHours":6.607482842194918,"endHours":8.256056123999077,"quality":"auspicious"},{"name":"Roga","start":"08:15","end":"09:54","startHours":8.256056123999077,"endHours":9.904629405803234,"quality":"inauspicious"},{"name":"Udveg","start":"09:54","end":"11:33","startHours":9.904629405803234,"endHours":11.553202687607392,"quality":"inauspicious"},{"name":"Chala","start":"11:33","end":"13:12","startHours":11.553202687607392,"endHours":13.201775969411552,"quality":"neutral"},{"name":"Labha","start":"13:12","end":"14:51","startHours":13.201775969411552,"endHours":14.85034925121571,"quality":"auspicious"},{"name":"Amṛta","start":"14:51","end":"16:30","startHours":14.85034925121571,"endHours":16.49892253301987,"quality":"auspicious"},{"name":"Kāla","start":"16:30","end":"18:09","startHours":16.49892253301987,"endHours":18.147495814824026,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:09","end":"19:30","startHours":18.147495814824026,"endHours":19.49892253301987,"quality":"auspicious"},{"name":"Amṛta","start":"19:30","end":"20:51","startHours":19.49892253301987,"endHours":20.85034925121571,"quality":"auspicious"},{"name":"Kāla","start":"20:51","end":"22:12","startHours":20.85034925121571,"endHours":22.20177596941155,"quality":"inauspicious"},{"name":"Śubha","start":"22:12","end":"23:33","startHours":22.20177596941155,"endHours":23.553202687607392,"quality":"auspicious"},{"name":"Roga","start":"23:33","end":"00:54","startHours":23.553202687607392,"endHours":24.904629405803234,"quality":"inauspicious"},{"name":"Udveg","start":"00:54","end":"02:15","startHours":24.904629405803234,"endHours":26.256056123999077,"quality":"inauspicious"},{"name":"Chala","start":"02:15","end":"03:36","startHours":26.256056123999077,"endHours":27.60748284219492,"quality":"neutral"},{"name":"Labha","start":"03:36","end":"04:58","startHours":27.60748284219492,"endHours":28.958909560390758,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"04:58","end":"05:58","startHours":4.95890956039076,"endHours":5.95890956039076,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"05:58","end":"06:58","startHours":5.95890956039076,"endHours":6.95890956039076,"planetary_lord":"Moon"},{"name":"Hora 3","start":"06:58","end":"07:58","startHours":6.95890956039076,"endHours":7.95890956039076,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"07:58","end":"08:58","startHours":7.95890956039076,"endHours":8.95890956039076,"planetary_lord":"Venus"},{"name":"Hora 5","start":"08:58","end":"09:58","startHours":8.95890956039076,"endHours":9.95890956039076,"planetary_lord":"Sun"},{"name":"Hora 6","start":"09:58","end":"10:58","startHours":9.95890956039076,"endHours":10.95890956039076,"planetary_lord":"Mars"},{"name":"Hora 7","start":"10:58","end":"11:58","startHours":10.95890956039076,"endHours":11.95890956039076,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"11:58","end":"12:58","startHours":11.95890956039076,"endHours":12.95890956039076,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"12:58","end":"13:58","startHours":12.95890956039076,"endHours":13.95890956039076,"planetary_lord":"Moon"},{"name":"Hora 10","start":"13:58","end":"14:58","startHours":13.95890956039076,"endHours":14.95890956039076,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"14:58","end":"15:58","startHours":14.95890956039076,"endHours":15.95890956039076,"planetary_lord":"Venus"},{"name":"Hora 12","start":"15:58","end":"16:58","startHours":15.95890956039076,"endHours":16.958909560390758,"planetary_lord":"Sun"},{"name":"Hora 13","start":"16:58","end":"17:58","startHours":16.958909560390758,"endHours":17.958909560390758,"planetary_lord":"Mars"},{"name":"Hora 14","start":"17:58","end":"18:58","startHours":17.958909560390758,"endHours":18.958909560390758,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"18:58","end":"19:58","startHours":18.958909560390758,"endHours":19.958909560390758,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"19:58","end":"20:58","startHours":19.958909560390758,"endHours":20.958909560390758,"planetary_lord":"Moon"},{"name":"Hora 17","start":"20:58","end":"21:58","startHours":20.958909560390758,"endHours":21.958909560390758,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"21:58","end":"22:58","startHours":21.958909560390758,"endHours":22.958909560390758,"planetary_lord":"Venus"},{"name":"Hora 19","start":"22:58","end":"23:58","startHours":22.958909560390758,"endHours":23.958909560390758,"planetary_lord":"Sun"},{"name":"Hora 20","start":"23:58","end":"00:58","startHours":23.958909560390758,"endHours":24.958909560390758,"planetary_lord":"Mars"},{"name":"Hora 21","start":"00:58","end":"01:58","startHours":24.958909560390758,"endHours":25.958909560390758,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"01:58","end":"02:58","startHours":25.958909560390758,"endHours":26.958909560390758,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"02:58","end":"03:58","startHours":26.958909560390758,"endHours":27.958909560390758,"planetary_lord":"Moon"},{"name":"Hora 24","start":"03:58","end":"04:58","startHours":27.958909560390758,"endHours":28.958909560390758,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-East","rahuVasa":"East","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"drikRitu":"Vasanta (Spring) (Drik)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":18.39029522211505,"eotMinutes":3.7534387435564067,"ayanamsa":24.0955}},"calendars":{"vikram_samvat":2074,"vikram_samvatsara":"Sādhāraṇa","saka_samvat":1939,"saka_samvatsara":"Hemalambī","bengali_samvat":1424,"malayalam_era":1193,"nanakshahi_year":548,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Kṛṣṇa Pakṣa","solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Kṛṣṇa Tṛtīyā · Vikram 2074 Sādhāraṇa · Śaka 1939 Hemalambī"},"festivals":[{"id":"mesha-sankranti","name":"Meṣa Saṅkrānti (Vaiśākhī / Vishu / Pohelā Boishākh / Bihu)","name_sanskrit":"मेष सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aries; solar new year. Regional: Vaiśākhī (Punjab) · Vishu (Kerala) · Pohelā Boishākh (Bengal) · Bihu (Assam) · Tamil Puthāṇḍu.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":1},{"id":"baisakhi","name":"Baisakhi (Vaiśākhī)","name_sanskrit":"वैशाखी","tradition":"Regional","associated_deity":"Sūrya + Khalsa Pantha (Sikh)","significance":"Punjab New Year + Sikh Khalsa founding day.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":2}],"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":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Jyeṣṭhā","url":"/day/-3137-10-20","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 May 13, 2017 CE · Howrah, West Bengal · Vidhyamitra","description":"May 13, 2017 CE for Howrah, West Bengal: Kṛṣṇa Tṛtīyā, sūryodaya 04:58, sūryāsta 18:09.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/howrah/2017-05-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/howrah/2017-05-13","sa":"https://sa.vidhyamitra.com/city/howrah/2017-05-13","hi":"https://hi.vidhyamitra.com/city/howrah/2017-05-13","x-default":"https://vidhyamitra.com/city/howrah/2017-05-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T10:14:49.328Z","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":"2026-05-15T10:14:49.328Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T10:14:49.328Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}