{"id":"vidhyamitra:city-day:dwarka:1981-07-29:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/dwarka/1981-07-29","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-07-29","date_display":"July 29, 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":7,"day":29,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444814.770833,"kali_year":5083,"ahargana":1856349.2708,"sun":{"sidereal_longitude":101.776,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":75.6336,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":333.8576,"elapsed_within_tithi_degrees":9.8576},"nakshatra":{"number":6,"name":"Ārdrā","pada":3,"moon_longitude":75.6336,"elapsed_within_degrees":8.9669},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":177.4096},"karana":{"half_tithi_index":55,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":7,"day":29,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444814.770833,"ahargana":1856349.2708,"kali_year":5083,"ayanamsa_lahiri":23.5956,"grahas":{"sun":{"sidereal_longitude":102.250855,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"moon":{"sidereal_longitude":74.35295500000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false,"latitude":-1.9745},"mars":{"sidereal_longitude":73.81735500000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":89.28285499999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":162.33625499999994,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"venus":{"sidereal_longitude":132.055255,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":161.432055,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":101.6823,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":281.6823,"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":7,"day":29,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444814.770833,"kali_year":5083,"ahargana":1856349.2708,"sun":{"sidereal_longitude":101.776,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":75.6336,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":333.8576,"elapsed_within_tithi_degrees":9.8576},"nakshatra":{"number":6,"name":"Ārdrā","pada":3,"moon_longitude":75.6336,"elapsed_within_degrees":8.9669},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":177.4096},"karana":{"half_tithi_index":55,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.974,"elongation":26.142},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.974,"opposition_distance":153.858}},"eclipse_window_40days":[{"offset_days":-12,"type":"lunar","occurs":true,"moon_latitude":1.092,"opposition_distance":2.128},{"offset_days":2,"type":"solar","occurs":true,"moon_latitude":0.181,"elongation":0.207}]},"city":{"slug":"dwarka","name":"Dvārakā","lat":22.2393,"lon":68.9686,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"dwarka","name":"Dvārakā","lat":22.2393,"lon":68.9686,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tirtha"},"sunriseLocal":"06:24","sunsetLocal":"19:36","solarNoonLocal":"13:00","dayLengthHours":13.195514458118273,"dayLengthDisplay":"13 Hours 11 Mins 44 Secs","nightLengthDisplay":"10 Hours 48 Mins 16 Secs","moonriseLocal":"04:26","moonsetLocal":"17:52","rahuKala":{"name":"Rāhu Kāla","start":"13:00","end":"14:39","startHours":13.004554273425772,"endHours":14.653993580690557,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:03","end":"09:42","startHours":8.05623635163142,"endHours":9.705675658896205,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:21","end":"13:00","startHours":11.355114966160988,"endHours":13.004554273425772,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:29","end":"09:56","startHours":9.485750417927566,"endHours":9.925600899864842,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:57","end":"07:19","startHours":6.956610146788231,"endHours":7.308490532338052,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:34","end":"13:27","startHours":12.564703791488496,"endHours":13.444404755363047,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:39","end":"05:32","startHours":4.647395116617533,"endHours":5.527096080492084,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:18","end":"06:24","startHours":5.3071708395234465,"endHours":6.406797044366636,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"15:12","end":"16:05","startHours":15.203806683112152,"endHours":16.083507646986703,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:24","end":"19:48","startHours":19.40231150248491,"endHours":19.80231150248491,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:36","end":"20:09","startHours":19.60231150248491,"endHours":20.152124604906504,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:21","end":"21:06","startHours":19.35231150248491,"endHours":21.10231150248491,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:34","end":"01:27","startHours":24.564703791488494,"endHours":25.44440475536305,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:24","end":"08:03","startHours":6.406797044366636,"endHours":8.05623635163142,"quality":"auspicious"},{"name":"Amṛta","start":"08:03","end":"09:42","startHours":8.05623635163142,"endHours":9.705675658896205,"quality":"auspicious"},{"name":"Kāla","start":"09:42","end":"11:21","startHours":9.705675658896205,"endHours":11.355114966160988,"quality":"inauspicious"},{"name":"Śubha","start":"11:21","end":"13:00","startHours":11.355114966160988,"endHours":13.004554273425772,"quality":"auspicious"},{"name":"Roga","start":"13:00","end":"14:39","startHours":13.004554273425772,"endHours":14.653993580690557,"quality":"inauspicious"},{"name":"Udveg","start":"14:39","end":"16:18","startHours":14.653993580690557,"endHours":16.30343288795534,"quality":"inauspicious"},{"name":"Chala","start":"16:18","end":"17:57","startHours":16.30343288795534,"endHours":17.952872195220124,"quality":"neutral"},{"name":"Labha","start":"17:57","end":"19:36","startHours":17.952872195220124,"endHours":19.60231150248491,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"19:36","end":"20:57","startHours":19.60231150248491,"endHours":20.952872195220124,"quality":"inauspicious"},{"name":"Chala","start":"20:57","end":"22:18","startHours":20.952872195220124,"endHours":22.303432887955342,"quality":"neutral"},{"name":"Labha","start":"22:18","end":"23:39","startHours":22.303432887955342,"endHours":23.653993580690557,"quality":"auspicious"},{"name":"Amṛta","start":"23:39","end":"01:00","startHours":23.653993580690557,"endHours":25.00455427342577,"quality":"auspicious"},{"name":"Kāla","start":"01:00","end":"02:21","startHours":25.00455427342577,"endHours":26.35511496616099,"quality":"inauspicious"},{"name":"Śubha","start":"02:21","end":"03:42","startHours":26.35511496616099,"endHours":27.705675658896205,"quality":"auspicious"},{"name":"Roga","start":"03:42","end":"05:03","startHours":27.705675658896205,"endHours":29.05623635163142,"quality":"inauspicious"},{"name":"Udveg","start":"05:03","end":"06:24","startHours":29.05623635163142,"endHours":30.406797044366634,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:24","end":"07:24","startHours":6.406797044366636,"endHours":7.406797044366636,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:24","end":"08:24","startHours":7.406797044366636,"endHours":8.406797044366636,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:24","end":"09:24","startHours":8.406797044366636,"endHours":9.406797044366636,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:24","end":"10:24","startHours":9.406797044366636,"endHours":10.406797044366636,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:24","end":"11:24","startHours":10.406797044366636,"endHours":11.406797044366636,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:24","end":"12:24","startHours":11.406797044366636,"endHours":12.406797044366636,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:24","end":"13:24","startHours":12.406797044366636,"endHours":13.406797044366636,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:24","end":"14:24","startHours":13.406797044366636,"endHours":14.406797044366636,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:24","end":"15:24","startHours":14.406797044366636,"endHours":15.406797044366636,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:24","end":"16:24","startHours":15.406797044366636,"endHours":16.406797044366634,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:24","end":"17:24","startHours":16.406797044366634,"endHours":17.406797044366634,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:24","end":"18:24","startHours":17.406797044366634,"endHours":18.406797044366634,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:24","end":"19:24","startHours":18.406797044366634,"endHours":19.406797044366634,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:24","end":"20:24","startHours":19.406797044366634,"endHours":20.406797044366634,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:24","end":"21:24","startHours":20.406797044366634,"endHours":21.406797044366634,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:24","end":"22:24","startHours":21.406797044366634,"endHours":22.406797044366634,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:24","end":"23:24","startHours":22.406797044366634,"endHours":23.406797044366634,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:24","end":"00:24","startHours":23.406797044366634,"endHours":24.406797044366634,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:24","end":"01:24","startHours":24.406797044366634,"endHours":25.406797044366634,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:24","end":"02:24","startHours":25.406797044366634,"endHours":26.406797044366634,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:24","end":"03:24","startHours":26.406797044366634,"endHours":27.406797044366634,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:24","end":"04:24","startHours":27.406797044366634,"endHours":28.406797044366634,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:24","end":"05:24","startHours":28.406797044366634,"endHours":29.406797044366634,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:24","end":"06:24","startHours":29.406797044366634,"endHours":30.406797044366634,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South","rahuVasa":"South-West","anandadiYoga":{"name":"Kāṇa","quality":"Inauspicious"},"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":18.80798773100124,"eotMinutes":-6.147656405546237,"ayanamsa":23.5956}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Śrāvaṇa","lunar_month_paksha_full":"Śrāvaṇa Kṛṣṇa Pakṣa","solar_month":"Karkaṭa (Āḍi)","ritu":"Varṣā (Monsoon)","display_summary":"Śrāvaṇa Kṛṣṇa Trayodaśī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"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":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"dwarka"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga July 29, 1981 CE · Dvārakā · Vidhyamitra","description":"July 29, 1981 CE for Dvārakā: Kṛṣṇa Trayodaśī, sūryodaya 06:24, sūryāsta 19:36.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/dwarka/1981-07-29","hreflang_alternates":{"en":"https://vidhyamitra.com/city/dwarka/1981-07-29","sa":"https://sa.vidhyamitra.com/city/dwarka/1981-07-29","hi":"https://hi.vidhyamitra.com/city/dwarka/1981-07-29","x-default":"https://vidhyamitra.com/city/dwarka/1981-07-29"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T14:16:54.875Z","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":"2026-05-18T14:16:54.875Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T14:16:54.875Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}