{"id":"vidhyamitra:city-day:dwarka:1986-07-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/dwarka/1986-07-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1986-07-18","date_display":"July 18, 1986 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":1986,"month":7,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446629.770833,"kali_year":5088,"ahargana":1858164.2708,"sun":{"sidereal_longitude":91.0621,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":226.2259,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":135.1638,"elapsed_within_tithi_degrees":3.1638},"nakshatra":{"number":17,"name":"Anurādhā","pada":4,"moon_longitude":226.2259,"elapsed_within_degrees":12.8926},"yoga":{"number":24,"name":"Śukla","sum_longitude":317.2881},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":1986,"month":7,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2446629.770833,"ahargana":1858164.2708,"kali_year":5088,"ayanamsa_lahiri":23.665,"grahas":{"sun":{"sidereal_longitude":91.47870799999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false},"moon":{"sidereal_longitude":223.966408,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false,"latitude":-2.9334},"mars":{"sidereal_longitude":261.960608,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":true},"mercury":{"sidereal_longitude":100.41490799999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":329.966908,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":133.694908,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":219.386708,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":5.5148,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":185.5148,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"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":1986,"month":7,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2446629.770833,"kali_year":5088,"ahargana":1858164.2708,"sun":{"sidereal_longitude":91.0621,"rashi":4,"rashi_name":"Karka"},"moon":{"sidereal_longitude":226.2259,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":135.1638,"elapsed_within_tithi_degrees":3.1638},"nakshatra":{"number":17,"name":"Anurādhā","pada":4,"moon_longitude":226.2259,"elapsed_within_degrees":12.8926},"yoga":{"number":24,"name":"Śukla","sum_longitude":317.2881},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.933,"elongation":135.164},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.933,"opposition_distance":44.836}},"eclipse_window_40days":[]},"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":"06:20","sunsetLocal":"19:40","solarNoonLocal":"13:00","dayLengthHours":13.341016736788909,"dayLengthDisplay":"13 Hours 20 Mins 28 Secs","nightLengthDisplay":"10 Hours 39 Mins 32 Secs","moonriseLocal":"16:24","moonsetLocal":"03:15","rahuKala":{"name":"Rāhu Kāla","start":"11:20","end":"13:00","startHours":11.332064843243206,"endHours":12.999691935341819,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"16:20","end":"18:00","startHours":16.334946119539048,"endHours":18.00257321163766,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:00","end":"09:40","startHours":7.996810659045978,"endHours":9.664437751144591,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:27","end":"09:53","startHours":9.44208747219811,"endHours":9.886788030091074,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:53","end":"07:14","startHours":6.885059264313568,"endHours":7.24081971062794,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:33","end":"13:27","startHours":12.554991377448856,"endHours":13.444392493234782,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:33","end":"05:26","startHours":4.550381335375509,"endHours":5.439782451161437,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:13","end":"06:20","startHours":5.217432172214955,"endHours":6.329183566947364,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"15:13","end":"16:07","startHours":15.223194724806637,"endHours":16.112595840592565,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:28","end":"19:52","startHours":19.470200303736274,"endHours":19.870200303736272,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:40","end":"20:14","startHours":19.670200303736273,"endHours":20.226076001102477,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:25","end":"21:10","startHours":19.420200303736273,"endHours":21.170200303736273,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:33","end":"01:27","startHours":24.554991377448854,"endHours":25.444392493234783,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:20","end":"08:00","startHours":6.329183566947364,"endHours":7.996810659045978,"quality":"neutral"},{"name":"Labha","start":"08:00","end":"09:40","startHours":7.996810659045978,"endHours":9.664437751144591,"quality":"auspicious"},{"name":"Amṛta","start":"09:40","end":"11:20","startHours":9.664437751144591,"endHours":11.332064843243206,"quality":"auspicious"},{"name":"Kāla","start":"11:20","end":"13:00","startHours":11.332064843243206,"endHours":12.999691935341819,"quality":"inauspicious"},{"name":"Śubha","start":"13:00","end":"14:40","startHours":12.999691935341819,"endHours":14.667319027440431,"quality":"auspicious"},{"name":"Roga","start":"14:40","end":"16:20","startHours":14.667319027440431,"endHours":16.334946119539048,"quality":"inauspicious"},{"name":"Udveg","start":"16:20","end":"18:00","startHours":16.334946119539048,"endHours":18.00257321163766,"quality":"inauspicious"},{"name":"Chala","start":"18:00","end":"19:40","startHours":18.00257321163766,"endHours":19.670200303736273,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"19:40","end":"21:00","startHours":19.670200303736273,"endHours":21.00257321163766,"quality":"inauspicious"},{"name":"Udveg","start":"21:00","end":"22:20","startHours":21.00257321163766,"endHours":22.334946119539048,"quality":"inauspicious"},{"name":"Chala","start":"22:20","end":"23:40","startHours":22.334946119539048,"endHours":23.66731902744043,"quality":"neutral"},{"name":"Labha","start":"23:40","end":"01:00","startHours":23.66731902744043,"endHours":24.99969193534182,"quality":"auspicious"},{"name":"Amṛta","start":"01:00","end":"02:20","startHours":24.99969193534182,"endHours":26.332064843243206,"quality":"auspicious"},{"name":"Kāla","start":"02:20","end":"03:40","startHours":26.332064843243206,"endHours":27.66443775114459,"quality":"inauspicious"},{"name":"Śubha","start":"03:40","end":"05:00","startHours":27.66443775114459,"endHours":28.996810659045977,"quality":"auspicious"},{"name":"Roga","start":"05:00","end":"06:20","startHours":28.996810659045977,"endHours":30.329183566947364,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:20","end":"07:20","startHours":6.329183566947364,"endHours":7.329183566947364,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:20","end":"08:20","startHours":7.329183566947364,"endHours":8.329183566947364,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:20","end":"09:20","startHours":8.329183566947364,"endHours":9.329183566947364,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:20","end":"10:20","startHours":9.329183566947364,"endHours":10.329183566947364,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:20","end":"11:20","startHours":10.329183566947364,"endHours":11.329183566947364,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:20","end":"12:20","startHours":11.329183566947364,"endHours":12.329183566947364,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:20","end":"13:20","startHours":12.329183566947364,"endHours":13.329183566947364,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:20","end":"14:20","startHours":13.329183566947364,"endHours":14.329183566947364,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:20","end":"15:20","startHours":14.329183566947364,"endHours":15.329183566947364,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:20","end":"16:20","startHours":15.329183566947364,"endHours":16.329183566947364,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:20","end":"17:20","startHours":16.329183566947364,"endHours":17.329183566947364,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:20","end":"18:20","startHours":17.329183566947364,"endHours":18.329183566947364,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:20","end":"19:20","startHours":18.329183566947364,"endHours":19.329183566947364,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:20","end":"20:20","startHours":19.329183566947364,"endHours":20.329183566947364,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:20","end":"21:20","startHours":20.329183566947364,"endHours":21.329183566947364,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:20","end":"22:20","startHours":21.329183566947364,"endHours":22.329183566947364,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:20","end":"23:20","startHours":22.329183566947364,"endHours":23.329183566947364,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:20","end":"00:20","startHours":23.329183566947364,"endHours":24.329183566947364,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:20","end":"01:20","startHours":24.329183566947364,"endHours":25.329183566947364,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:20","end":"02:20","startHours":25.329183566947364,"endHours":26.329183566947364,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:20","end":"03:20","startHours":26.329183566947364,"endHours":27.329183566947364,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:20","end":"04:20","startHours":27.329183566947364,"endHours":28.329183566947364,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:20","end":"05:20","startHours":28.329183566947364,"endHours":29.329183566947364,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:20","end":"06:20","startHours":29.329183566947364,"endHours":30.329183566947364,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Revatī"],"unfavorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Citrā","Svātī","Viśākhā","Anurādhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"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":"West (Paścim)","chandraVasa":"North-East","rahuVasa":"South-East","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"tropicalRitu":"Grīṣma (Summer)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":21.10297784508873,"eotMinutes":-5.85591612050904,"ayanamsa":23.665}},"calendars":{"vikram_samvat":2043,"vikram_samvatsara":"Pramāthi","saka_samvat":1908,"saka_samvatsara":"Akṣaya","bengali_samvat":1393,"malayalam_era":1162,"nanakshahi_year":517,"lunar_month":"Āṣāḍha","lunar_month_paksha_full":"Āṣāḍha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āṣāḍha","lunar_month_amanta":"Āṣāḍha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Karkaṭa (Āḍi)","ritu":"Grīṣma (Summer)","display_summary":"Āṣāḍha Śukla Dvādaśī · Vikram 2043 Pramāthi · Śaka 1908 Akṣaya"},"festivals":[],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — 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 18, 1986 CE · Dvārakā · Vidhyamitra","description":"July 18, 1986 CE for Dvārakā: Śukla Dvādaśī, sūryodaya 06:20, sūryāsta 19:40.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/dwarka/1986-07-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/dwarka/1986-07-18","sa":"https://sa.vidhyamitra.com/city/dwarka/1986-07-18","hi":"https://hi.vidhyamitra.com/city/dwarka/1986-07-18","x-default":"https://vidhyamitra.com/city/dwarka/1986-07-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T16:42:21.527Z","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":"2026-05-31T16:42:21.527Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T16:42:21.527Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}