{"id":"vidhyamitra:city-day:jamnagar:2181-05-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/jamnagar/2181-05-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2181-05-20","date_display":"May 20, 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":5,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517793.770833,"kali_year":5283,"ahargana":1929328.2708,"sun":{"sidereal_longitude":32.72,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":106.8546,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":74.1346,"elapsed_within_tithi_degrees":2.1346},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1,"moon_longitude":106.8546,"elapsed_within_degrees":0.1879},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":139.5745},"karana":{"half_tithi_index":12,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":5,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2517793.770833,"ahargana":1929328.2708,"kali_year":5283,"ayanamsa_lahiri":26.3868,"grahas":{"sun":{"sidereal_longitude":33.18112000000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":103.27081999999996,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false,"latitude":-4.4974},"mars":{"sidereal_longitude":93.60152,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":6.953919999999982,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":106.39761999999996,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"venus":{"sidereal_longitude":56.44342,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":79.17362000000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":194.9036,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":14.9036,"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":5,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517793.770833,"kali_year":5283,"ahargana":1929328.2708,"sun":{"sidereal_longitude":32.72,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":106.8546,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":74.1346,"elapsed_within_tithi_degrees":2.1346},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1,"moon_longitude":106.8546,"elapsed_within_degrees":0.1879},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":139.5745},"karana":{"half_tithi_index":12,"name":"Gara"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.497,"elongation":74.135},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.497,"opposition_distance":105.865}},"eclipse_window_40days":[]},"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":"06:08","sunsetLocal":"19:25","solarNoonLocal":"12:46","dayLengthHours":13.287594368735057,"dayLengthDisplay":"13 Hours 17 Mins 15 Secs","nightLengthDisplay":"10 Hours 42 Mins 45 Secs","moonriseLocal":"10:53","moonsetLocal":"00:00","rahuKala":{"name":"Rāhu Kāla","start":"17:45","end":"19:25","startHours":17.752362671339228,"endHours":19.41331196743111,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:46","end":"14:26","startHours":12.769514783063581,"endHours":14.430464079155463,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"16:05","end":"17:45","startHours":16.091413375247345,"endHours":17.752362671339228,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:14","end":"09:40","startHours":9.226156284734234,"endHours":9.669076097025401,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:41","end":"07:02","startHours":6.679367364060014,"endHours":7.033703213892949,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:20","end":"13:13","startHours":12.326594970772412,"endHours":13.21243459535475,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:21","end":"05:14","startHours":4.354038349531379,"endHours":5.239877974113717,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:01","end":"06:08","startHours":5.018418067968132,"endHours":6.1257175986960535,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:59","end":"15:52","startHours":14.984113844519424,"endHours":15.86995346910176,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:13","end":"19:37","startHours":19.21331196743111,"endHours":19.61331196743111,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:25","end":"19:58","startHours":19.41331196743111,"endHours":19.96696173279507,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:10","end":"20:55","startHours":19.16331196743111,"endHours":20.91331196743111,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:20","end":"01:13","startHours":24.326594970772412,"endHours":25.21243459535475,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:08","end":"07:47","startHours":6.1257175986960535,"endHours":7.786666894787936,"quality":"inauspicious"},{"name":"Chala","start":"07:47","end":"09:27","startHours":7.786666894787936,"endHours":9.447616190879817,"quality":"neutral"},{"name":"Labha","start":"09:27","end":"11:07","startHours":9.447616190879817,"endHours":11.108565486971699,"quality":"auspicious"},{"name":"Amṛta","start":"11:07","end":"12:46","startHours":11.108565486971699,"endHours":12.769514783063581,"quality":"auspicious"},{"name":"Kāla","start":"12:46","end":"14:26","startHours":12.769514783063581,"endHours":14.430464079155463,"quality":"inauspicious"},{"name":"Śubha","start":"14:26","end":"16:05","startHours":14.430464079155463,"endHours":16.091413375247345,"quality":"auspicious"},{"name":"Roga","start":"16:05","end":"17:45","startHours":16.091413375247345,"endHours":17.752362671339228,"quality":"inauspicious"},{"name":"Udveg","start":"17:45","end":"19:25","startHours":17.752362671339228,"endHours":19.41331196743111,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"19:25","end":"20:45","startHours":19.41331196743111,"endHours":20.752362671339228,"quality":"auspicious"},{"name":"Roga","start":"20:45","end":"22:05","startHours":20.752362671339228,"endHours":22.091413375247345,"quality":"inauspicious"},{"name":"Udveg","start":"22:05","end":"23:26","startHours":22.091413375247345,"endHours":23.430464079155463,"quality":"inauspicious"},{"name":"Chala","start":"23:26","end":"00:46","startHours":23.430464079155463,"endHours":24.76951478306358,"quality":"neutral"},{"name":"Labha","start":"00:46","end":"02:07","startHours":24.76951478306358,"endHours":26.1085654869717,"quality":"auspicious"},{"name":"Amṛta","start":"02:07","end":"03:27","startHours":26.1085654869717,"endHours":27.447616190879817,"quality":"auspicious"},{"name":"Kāla","start":"03:27","end":"04:47","startHours":27.447616190879817,"endHours":28.786666894787935,"quality":"inauspicious"},{"name":"Śubha","start":"04:47","end":"06:08","startHours":28.786666894787935,"endHours":30.125717598696053,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:08","end":"07:08","startHours":6.1257175986960535,"endHours":7.1257175986960535,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:08","end":"08:08","startHours":7.1257175986960535,"endHours":8.125717598696053,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:08","end":"09:08","startHours":8.125717598696053,"endHours":9.125717598696053,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:08","end":"10:08","startHours":9.125717598696053,"endHours":10.125717598696053,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:08","end":"11:08","startHours":10.125717598696053,"endHours":11.125717598696053,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:08","end":"12:08","startHours":11.125717598696053,"endHours":12.125717598696053,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:08","end":"13:08","startHours":12.125717598696053,"endHours":13.125717598696053,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:08","end":"14:08","startHours":13.125717598696053,"endHours":14.125717598696053,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:08","end":"15:08","startHours":14.125717598696053,"endHours":15.125717598696053,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:08","end":"16:08","startHours":15.125717598696053,"endHours":16.125717598696053,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:08","end":"17:08","startHours":16.125717598696053,"endHours":17.125717598696053,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:08","end":"18:08","startHours":17.125717598696053,"endHours":18.125717598696053,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:08","end":"19:08","startHours":18.125717598696053,"endHours":19.125717598696053,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:08","end":"20:08","startHours":19.125717598696053,"endHours":20.125717598696053,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:08","end":"21:08","startHours":20.125717598696053,"endHours":21.125717598696053,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:08","end":"22:08","startHours":21.125717598696053,"endHours":22.125717598696053,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:08","end":"23:08","startHours":22.125717598696053,"endHours":23.125717598696053,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:08","end":"00:08","startHours":23.125717598696053,"endHours":24.125717598696053,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:08","end":"01:08","startHours":24.125717598696053,"endHours":25.125717598696053,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:08","end":"02:08","startHours":25.125717598696053,"endHours":26.125717598696053,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:08","end":"03:08","startHours":26.125717598696053,"endHours":27.125717598696053,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:08","end":"04:08","startHours":27.125717598696053,"endHours":28.125717598696053,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:08","end":"05:08","startHours":28.125717598696053,"endHours":29.125717598696053,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:08","end":"06:08","startHours":29.125717598696053,"endHours":30.125717598696053,"planetary_lord":"Jupiter"}],"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","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":20.055909775558835,"eotMinutes":3.5983130161851964,"ayanamsa":26.3868}},"calendars":{"vikram_samvat":2238,"vikram_samvatsara":"Jaya","saka_samvat":2103,"saka_samvatsara":"Vṛṣa","bengali_samvat":1588,"malayalam_era":1357,"nanakshahi_year":712,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Saptamī · Vikram 2238 Jaya · Śaka 2103 Vṛṣa"},"festivals":[{"id":"ganga-saptami","name":"Gaṅgā Saptamī","name_sanskrit":"गङ्गा सप्तमी","tradition":"Pan-Hindu","associated_deity":"Devī Gaṅgā","significance":"Gaṅgā Devī's descent to Brahma-loka before her earth-descent.","vrata":true,"detection":{"tithi_number":7,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":4}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[]},"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 May 20, 2181 CE · Jamnagar, Gujarat · Vidhyamitra","description":"May 20, 2181 CE for Jamnagar, Gujarat: Śukla Saptamī, sūryodaya 06:08, sūryāsta 19:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/jamnagar/2181-05-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/jamnagar/2181-05-20","sa":"https://sa.vidhyamitra.com/city/jamnagar/2181-05-20","hi":"https://hi.vidhyamitra.com/city/jamnagar/2181-05-20","x-default":"https://vidhyamitra.com/city/jamnagar/2181-05-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T12:20:56.119Z","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":"2026-05-31T12:20:56.119Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T12:20:56.119Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}