{"id":"vidhyamitra:city-day:udaipur:1981-08-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/udaipur/1981-08-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-08-18","date_display":"August 18, 1981 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":1981,"month":8,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444834.770833,"kali_year":5083,"ahargana":1856369.2708,"sun":{"sidereal_longitude":120.8397,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":329.8416,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":209.002,"elapsed_within_tithi_degrees":5.002},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3,"moon_longitude":329.8416,"elapsed_within_degrees":9.8416},"yoga":{"number":7,"name":"Sukarma","sum_longitude":90.6813},"karana":{"half_tithi_index":34,"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":1981,"month":8,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444834.770833,"ahargana":1856369.2708,"kali_year":5083,"ayanamsa_lahiri":23.5964,"grahas":{"sun":{"sidereal_longitude":121.42358999999999,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":331.1715899999999,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false,"latitude":-3.406},"mars":{"sidereal_longitude":86.98539,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":129.52309000000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":165.72379,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"venus":{"sidereal_longitude":156.03159000000005,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":163.25829,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":100.6226,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":280.6226,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":1981,"month":8,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444834.770833,"kali_year":5083,"ahargana":1856369.2708,"sun":{"sidereal_longitude":120.8397,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":329.8416,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":209.002,"elapsed_within_tithi_degrees":5.002},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3,"moon_longitude":329.8416,"elapsed_within_degrees":9.8416},"yoga":{"number":7,"name":"Sukarma","sum_longitude":90.6813},"karana":{"half_tithi_index":34,"name":"Vaṇija"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.406,"elongation":150.998},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.406,"opposition_distance":29.002}},"eclipse_window_40days":[{"offset_days":-18,"type":"solar","occurs":true,"moon_latitude":0.181,"elongation":0.207}]},"city":{"slug":"udaipur","name":"Udaipur, Rajasthan","lat":24.5854,"lon":73.7125,"tz_offset_hours":5.5,"state":"Rajasthan","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"udaipur","name":"Udaipur, Rajasthan","lat":24.5854,"lon":73.7125,"tz_offset_hours":5.5,"state":"Rajasthan","country":"IN","tier":"tier-1"},"sunriseLocal":"06:10","sunsetLocal":"19:07","solarNoonLocal":"12:39","dayLengthHours":12.946395619606383,"dayLengthDisplay":"12 Hours 56 Mins 47 Secs","nightLengthDisplay":"11 Hours 03 Mins 13 Secs","moonriseLocal":"20:39","moonsetLocal":"08:36","rahuKala":{"name":"Rāhu Kāla","start":"15:53","end":"17:30","startHours":15.881233200250103,"endHours":17.4995326527009,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:24","end":"11:02","startHours":9.408035390446912,"endHours":11.02633484289771,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:39","end":"14:16","startHours":12.644634295348506,"endHours":14.262933747799305,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:12","end":"09:37","startHours":9.192262130120138,"endHours":9.623808650773684,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:43","end":"07:03","startHours":6.710869636362249,"endHours":7.056106852885086,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:13","end":"13:05","startHours":12.21308777469496,"endHours":13.076180816002053,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:27","end":"05:19","startHours":4.445250402931132,"endHours":5.308343444238224,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:06","end":"06:10","startHours":5.092570183911451,"endHours":6.171436485545316,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:48","end":"15:40","startHours":14.802366898616238,"endHours":15.66545993992333,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:55","end":"19:19","startHours":18.9178321051517,"endHours":19.317832105151698,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:07","end":"19:39","startHours":19.1178321051517,"endHours":19.657265255968632,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:52","end":"20:37","startHours":18.8678321051517,"endHours":20.6178321051517,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:13","end":"01:05","startHours":24.21308777469496,"endHours":25.076180816002054,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:10","end":"07:47","startHours":6.171436485545316,"endHours":7.789735937996114,"quality":"inauspicious"},{"name":"Udveg","start":"07:47","end":"09:24","startHours":7.789735937996114,"endHours":9.408035390446912,"quality":"inauspicious"},{"name":"Chala","start":"09:24","end":"11:02","startHours":9.408035390446912,"endHours":11.02633484289771,"quality":"neutral"},{"name":"Labha","start":"11:02","end":"12:39","startHours":11.02633484289771,"endHours":12.644634295348506,"quality":"auspicious"},{"name":"Amṛta","start":"12:39","end":"14:16","startHours":12.644634295348506,"endHours":14.262933747799305,"quality":"auspicious"},{"name":"Kāla","start":"14:16","end":"15:53","startHours":14.262933747799305,"endHours":15.881233200250103,"quality":"inauspicious"},{"name":"Śubha","start":"15:53","end":"17:30","startHours":15.881233200250103,"endHours":17.4995326527009,"quality":"auspicious"},{"name":"Roga","start":"17:30","end":"19:07","startHours":17.4995326527009,"endHours":19.1178321051517,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"19:07","end":"20:30","startHours":19.1178321051517,"endHours":20.4995326527009,"quality":"inauspicious"},{"name":"Śubha","start":"20:30","end":"21:53","startHours":20.4995326527009,"endHours":21.881233200250104,"quality":"auspicious"},{"name":"Roga","start":"21:53","end":"23:16","startHours":21.881233200250104,"endHours":23.262933747799305,"quality":"inauspicious"},{"name":"Udveg","start":"23:16","end":"00:39","startHours":23.262933747799305,"endHours":24.644634295348506,"quality":"inauspicious"},{"name":"Chala","start":"00:39","end":"02:02","startHours":24.644634295348506,"endHours":26.02633484289771,"quality":"neutral"},{"name":"Labha","start":"02:02","end":"03:24","startHours":26.02633484289771,"endHours":27.408035390446912,"quality":"auspicious"},{"name":"Amṛta","start":"03:24","end":"04:47","startHours":27.408035390446912,"endHours":28.789735937996113,"quality":"auspicious"},{"name":"Kāla","start":"04:47","end":"06:10","startHours":28.789735937996113,"endHours":30.171436485545314,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:10","end":"07:10","startHours":6.171436485545316,"endHours":7.171436485545316,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:10","end":"08:10","startHours":7.171436485545316,"endHours":8.171436485545316,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:10","end":"09:10","startHours":8.171436485545316,"endHours":9.171436485545316,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:10","end":"10:10","startHours":9.171436485545316,"endHours":10.171436485545316,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:10","end":"11:10","startHours":10.171436485545316,"endHours":11.171436485545316,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:10","end":"12:10","startHours":11.171436485545316,"endHours":12.171436485545316,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:10","end":"13:10","startHours":12.171436485545316,"endHours":13.171436485545316,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:10","end":"14:10","startHours":13.171436485545316,"endHours":14.171436485545316,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:10","end":"15:10","startHours":14.171436485545316,"endHours":15.171436485545316,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:10","end":"16:10","startHours":15.171436485545316,"endHours":16.171436485545314,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:10","end":"17:10","startHours":16.171436485545314,"endHours":17.171436485545314,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:10","end":"18:10","startHours":17.171436485545314,"endHours":18.171436485545314,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:10","end":"19:10","startHours":18.171436485545314,"endHours":19.171436485545314,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:10","end":"20:10","startHours":19.171436485545314,"endHours":20.171436485545314,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:10","end":"21:10","startHours":20.171436485545314,"endHours":21.171436485545314,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:10","end":"22:10","startHours":21.171436485545314,"endHours":22.171436485545314,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:10","end":"23:10","startHours":22.171436485545314,"endHours":23.171436485545314,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:10","end":"00:10","startHours":23.171436485545314,"endHours":24.171436485545314,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:10","end":"01:10","startHours":24.171436485545314,"endHours":25.171436485545314,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:10","end":"02:10","startHours":25.171436485545314,"endHours":26.171436485545314,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:10","end":"03:10","startHours":26.171436485545314,"endHours":27.171436485545314,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:10","end":"04:10","startHours":27.171436485545314,"endHours":28.171436485545314,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:10","end":"05:10","startHours":28.171436485545314,"endHours":29.171436485545314,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:10","end":"06:10","startHours":29.171436485545314,"endHours":30.171436485545314,"planetary_lord":"Saturn"}],"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":["Vṛṣabha","Siṃha","Kanyā","Dhanu","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Karka","Tulā","Vṛścika","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"North","anandadiYoga":{"name":"Saumya","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":13.180310164615495,"eotMinutes":-3.5280577209103767,"ayanamsa":23.5964}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Śrāvaṇa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Kṛṣṇa Tṛtīyā · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[],"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":[]},"validity":{"eternal":false,"location_specific":"udaipur"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga August 18, 1981 CE · Udaipur, Rajasthan · Vidhyamitra","description":"August 18, 1981 CE for Udaipur, Rajasthan: Kṛṣṇa Tṛtīyā, sūryodaya 06:10, sūryāsta 19:07.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/udaipur/1981-08-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/udaipur/1981-08-18","sa":"https://sa.vidhyamitra.com/city/udaipur/1981-08-18","hi":"https://hi.vidhyamitra.com/city/udaipur/1981-08-18","x-default":"https://vidhyamitra.com/city/udaipur/1981-08-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T14:02:44.748Z","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":"2026-06-02T14:02:44.748Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T14:02:44.748Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}