{"id":"vidhyamitra:city-day:jamnagar:2181-04-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/jamnagar/2181-04-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2181-04-17","date_display":"April 17, 2181 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":2181,"month":4,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517760.770833,"kali_year":5282,"ahargana":1929295.2708,"sun":{"sidereal_longitude":0.8416,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":38.1241,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":37.2825,"elapsed_within_tithi_degrees":1.2825},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4,"moon_longitude":38.1241,"elapsed_within_degrees":11.4575},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":38.9657},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"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":2181,"month":4,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2517760.770833,"ahargana":1929295.2708,"kali_year":5282,"ayanamsa_lahiri":26.3855,"grahas":{"sun":{"sidereal_longitude":1.1339810000000057,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":35.195880999999986,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false,"latitude":-1.6457},"mars":{"sidereal_longitude":75.713481,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":15.141580999999974,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":103.92868099999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"venus":{"sidereal_longitude":16.11788100000001,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":76.42758100000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":196.6521,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":16.6521,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","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":2181,"month":4,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517760.770833,"kali_year":5282,"ahargana":1929295.2708,"sun":{"sidereal_longitude":0.8416,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":38.1241,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":37.2825,"elapsed_within_tithi_degrees":1.2825},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4,"moon_longitude":38.1241,"elapsed_within_degrees":11.4575},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":38.9657},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.646,"elongation":37.283},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.646,"opposition_distance":142.717}},"eclipse_window_40days":[{"offset_days":-3,"type":"solar","occurs":true,"moon_latitude":1.281,"elongation":2.34}]},"city":{"slug":"jamnagar","name":"Jamnagar, Gujarat","lat":22.4707,"lon":70.0577,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"jamnagar","name":"Jamnagar, Gujarat","lat":22.4707,"lon":70.0577,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tier-1"},"sunriseLocal":"06:28","sunsetLocal":"19:11","solarNoonLocal":"12:50","dayLengthHours":12.714051384950723,"dayLengthDisplay":"12 Hours 42 Mins 51 Secs","nightLengthDisplay":"11 Hours 17 Mins 09 Secs","moonriseLocal":"08:27","moonsetLocal":"21:44","rahuKala":{"name":"Rāhu Kāla","start":"16:00","end":"17:36","startHours":16.003598696575516,"endHours":17.592855119694356,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:39","end":"11:14","startHours":9.646573004100153,"endHours":11.235829427218995,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:50","end":"14:25","startHours":12.825085850337835,"endHours":14.414342273456676,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:26","end":"09:52","startHours":9.434672147684308,"endHours":9.858473860516,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:00","end":"07:20","startHours":6.997812298902086,"endHours":7.336853669167438,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:24","end":"13:15","startHours":12.401284137506144,"endHours":13.248887563169527,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:46","end":"05:37","startHours":4.77285330653571,"endHours":5.6204567321990915,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:25","end":"06:28","startHours":5.408555875783246,"endHours":6.468060157862473,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:57","end":"15:48","startHours":14.944094414496288,"endHours":15.791697840159669,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:59","end":"19:23","startHours":18.982111542813197,"endHours":19.382111542813195,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:11","end":"19:43","startHours":19.182111542813196,"endHours":19.71186368385281,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:56","end":"20:41","startHours":18.932111542813196,"endHours":20.682111542813196,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:24","end":"01:15","startHours":24.401284137506146,"endHours":25.248887563169525,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:28","end":"08:03","startHours":6.468060157862473,"endHours":8.057316580981313,"quality":"inauspicious"},{"name":"Udveg","start":"08:03","end":"09:39","startHours":8.057316580981313,"endHours":9.646573004100153,"quality":"inauspicious"},{"name":"Chala","start":"09:39","end":"11:14","startHours":9.646573004100153,"endHours":11.235829427218995,"quality":"neutral"},{"name":"Labha","start":"11:14","end":"12:50","startHours":11.235829427218995,"endHours":12.825085850337835,"quality":"auspicious"},{"name":"Amṛta","start":"12:50","end":"14:25","startHours":12.825085850337835,"endHours":14.414342273456676,"quality":"auspicious"},{"name":"Kāla","start":"14:25","end":"16:00","startHours":14.414342273456676,"endHours":16.003598696575516,"quality":"inauspicious"},{"name":"Śubha","start":"16:00","end":"17:36","startHours":16.003598696575516,"endHours":17.592855119694356,"quality":"auspicious"},{"name":"Roga","start":"17:36","end":"19:11","startHours":17.592855119694356,"endHours":19.182111542813196,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"19:11","end":"20:36","startHours":19.182111542813196,"endHours":20.592855119694356,"quality":"inauspicious"},{"name":"Śubha","start":"20:36","end":"22:00","startHours":20.592855119694356,"endHours":22.003598696575516,"quality":"auspicious"},{"name":"Roga","start":"22:00","end":"23:25","startHours":22.003598696575516,"endHours":23.414342273456676,"quality":"inauspicious"},{"name":"Udveg","start":"23:25","end":"00:50","startHours":23.414342273456676,"endHours":24.825085850337835,"quality":"inauspicious"},{"name":"Chala","start":"00:50","end":"02:14","startHours":24.825085850337835,"endHours":26.235829427218995,"quality":"neutral"},{"name":"Labha","start":"02:14","end":"03:39","startHours":26.235829427218995,"endHours":27.646573004100155,"quality":"auspicious"},{"name":"Amṛta","start":"03:39","end":"05:03","startHours":27.646573004100155,"endHours":29.057316580981315,"quality":"auspicious"},{"name":"Kāla","start":"05:03","end":"06:28","startHours":29.057316580981315,"endHours":30.468060157862475,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:28","end":"07:28","startHours":6.468060157862473,"endHours":7.468060157862473,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:28","end":"08:28","startHours":7.468060157862473,"endHours":8.468060157862473,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:28","end":"09:28","startHours":8.468060157862473,"endHours":9.468060157862473,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:28","end":"10:28","startHours":9.468060157862473,"endHours":10.468060157862473,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:28","end":"11:28","startHours":10.468060157862473,"endHours":11.468060157862473,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:28","end":"12:28","startHours":11.468060157862473,"endHours":12.468060157862473,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:28","end":"13:28","startHours":12.468060157862473,"endHours":13.468060157862473,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:28","end":"14:28","startHours":13.468060157862473,"endHours":14.468060157862473,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:28","end":"15:28","startHours":14.468060157862473,"endHours":15.468060157862473,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:28","end":"16:28","startHours":15.468060157862473,"endHours":16.468060157862475,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:28","end":"17:28","startHours":16.468060157862475,"endHours":17.468060157862475,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:28","end":"18:28","startHours":17.468060157862475,"endHours":18.468060157862475,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:28","end":"19:28","startHours":18.468060157862475,"endHours":19.468060157862475,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:28","end":"20:28","startHours":19.468060157862475,"endHours":20.468060157862475,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:28","end":"21:28","startHours":20.468060157862475,"endHours":21.468060157862475,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:28","end":"22:28","startHours":21.468060157862475,"endHours":22.468060157862475,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:28","end":"23:28","startHours":22.468060157862475,"endHours":23.468060157862475,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:28","end":"00:28","startHours":23.468060157862475,"endHours":24.468060157862475,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:28","end":"01:28","startHours":24.468060157862475,"endHours":25.468060157862475,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:28","end":"02:28","startHours":25.468060157862475,"endHours":26.468060157862475,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:28","end":"03:28","startHours":26.468060157862475,"endHours":27.468060157862475,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:28","end":"04:28","startHours":27.468060157862475,"endHours":28.468060157862475,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:28","end":"05:28","startHours":28.468060157862475,"endHours":29.468060157862475,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:28","end":"06:28","startHours":29.468060157862475,"endHours":30.468060157862475,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"North","anandadiYoga":{"name":"Chatra","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":10.589566381807808,"eotMinutes":0.2640489797298191,"ayanamsa":26.3855}},"calendars":{"vikram_samvat":2238,"vikram_samvatsara":"Jaya","saka_samvat":2103,"saka_samvatsara":"Vṛṣa","bengali_samvat":1588,"malayalam_era":1357,"nanakshahi_year":712,"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":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Caturthī · Vikram 2238 Jaya · Śaka 2103 Vṛṣa"},"festivals":[{"id":"angarika-chaturthi","name":"Aṅgāraka Caturthī (Tuesday Caturthī)","name_sanskrit":"अङ्गारक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa + Maṅgala","significance":"Tuesday-Caturthī (rare); supremely auspicious for Maṅgala-doṣa-nivāraṇa.","vrata":true,"detection":{"any_of":[{"tithi_number":4,"vara_name":"Maṅgalavāra (Tuesday)"},{"tithi_number":19,"vara_name":"Maṅgalavāra (Tuesday)"}]},"precedence":3},{"id":"vinayaka-chaturthi","name":"Vināyaka Caturthī (monthly)","name_sanskrit":"विनायक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Śukla-pakṣa Caturthī; auspicious for new ventures.","vrata":true,"detection":{"tithi_number":4,"tithi_paksha":"Śukla"},"precedence":6}],"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":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","url":"/day/-3137-12-25","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"jamnagar"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga April 17, 2181 CE · Jamnagar, Gujarat · Vidhyamitra","description":"April 17, 2181 CE for Jamnagar, Gujarat: Śukla Caturthī, sūryodaya 06:28, sūryāsta 19:11.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/jamnagar/2181-04-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/jamnagar/2181-04-17","sa":"https://sa.vidhyamitra.com/city/jamnagar/2181-04-17","hi":"https://hi.vidhyamitra.com/city/jamnagar/2181-04-17","x-default":"https://vidhyamitra.com/city/jamnagar/2181-04-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T08:15:39.757Z","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":"2026-06-01T08:15:39.757Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T08:15:39.757Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}