{"id":"vidhyamitra:city-day:rishikesh:1966-06-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1966-06-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1966-06-20","date_display":"June 20, 1966 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":1966,"month":6,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2439296.770833,"kali_year":5068,"ahargana":1850831.2708,"sun":{"sidereal_longitude":64.7179,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":79.2041,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":14.4863,"elapsed_within_tithi_degrees":2.4863},"nakshatra":{"number":6,"name":"Ārdrā","pada":4,"moon_longitude":79.2041,"elapsed_within_degrees":12.5375},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":143.922},"karana":{"half_tithi_index":2,"name":"Bālava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1966,"month":6,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2439296.770833,"ahargana":1850831.2708,"kali_year":5068,"ayanamsa_lahiri":23.3846,"grahas":{"sun":{"sidereal_longitude":64.895983,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":80.81098299999996,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false,"latitude":3.1888},"mars":{"sidereal_longitude":52.70008300000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":88.27108299999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":76.79578300000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":29.503382999999985,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":336.576583,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":34.0524,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":214.0524,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","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":1966,"month":6,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2439296.770833,"kali_year":5068,"ahargana":1850831.2708,"sun":{"sidereal_longitude":64.7179,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":79.2041,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":14.4863,"elapsed_within_tithi_degrees":2.4863},"nakshatra":{"number":6,"name":"Ārdrā","pada":4,"moon_longitude":79.2041,"elapsed_within_degrees":12.5375},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":143.922},"karana":{"half_tithi_index":2,"name":"Bālava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.189,"elongation":14.486},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.189,"opposition_distance":165.514}},"eclipse_window_40days":[{"offset_days":-17,"type":"lunar","occurs":true,"moon_latitude":-0.941,"opposition_distance":1.55}]},"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"sunriseLocal":"05:16","sunsetLocal":"19:21","solarNoonLocal":"12:18","dayLengthHours":14.083275261642717,"dayLengthDisplay":"14 Hours 05 Mins 00 Secs","nightLengthDisplay":"9 Hours 55 Mins 00 Secs","moonriseLocal":"06:23","moonsetLocal":"20:21","rahuKala":{"name":"Rāhu Kāla","start":"07:01","end":"08:47","startHours":7.021549102332481,"endHours":8.781958510037821,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:33","end":"12:18","startHours":10.54236791774316,"endHours":12.3027773254485,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:04","end":"15:49","startHours":14.06318673315384,"endHours":15.823596140859179,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:33","end":"09:01","startHours":8.547237255677109,"endHours":9.016679764398532,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:51","end":"06:13","startHours":5.847942830528922,"endHours":6.223496837506061,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:46","startHours":11.833334816727076,"endHours":12.772219834169922,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:23","end":"04:19","startHours":3.383369659741446,"endHours":4.322254677184294,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:05","end":"05:16","startHours":4.087533422823582,"endHours":5.261139694627142,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:39","end":"15:35","startHours":14.64998986905562,"endHours":15.588874886498468,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:09","end":"19:33","startHours":19.14441495626986,"endHours":19.544414956269858,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:21","end":"19:56","startHours":19.34441495626986,"endHours":19.931218092171637,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:06","end":"20:51","startHours":19.09441495626986,"endHours":20.84441495626986,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:46","startHours":23.833334816727074,"endHours":24.772219834169924,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:16","end":"07:01","startHours":5.261139694627142,"endHours":7.021549102332481,"quality":"auspicious"},{"name":"Kāla","start":"07:01","end":"08:47","startHours":7.021549102332481,"endHours":8.781958510037821,"quality":"inauspicious"},{"name":"Śubha","start":"08:47","end":"10:33","startHours":8.781958510037821,"endHours":10.54236791774316,"quality":"auspicious"},{"name":"Roga","start":"10:33","end":"12:18","startHours":10.54236791774316,"endHours":12.3027773254485,"quality":"inauspicious"},{"name":"Udveg","start":"12:18","end":"14:04","startHours":12.3027773254485,"endHours":14.06318673315384,"quality":"inauspicious"},{"name":"Chala","start":"14:04","end":"15:49","startHours":14.06318673315384,"endHours":15.823596140859179,"quality":"neutral"},{"name":"Labha","start":"15:49","end":"17:35","startHours":15.823596140859179,"endHours":17.58400554856452,"quality":"auspicious"},{"name":"Amṛta","start":"17:35","end":"19:21","startHours":17.58400554856452,"endHours":19.34441495626986,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"19:21","end":"20:35","startHours":19.34441495626986,"endHours":20.58400554856452,"quality":"neutral"},{"name":"Labha","start":"20:35","end":"21:49","startHours":20.58400554856452,"endHours":21.82359614085918,"quality":"auspicious"},{"name":"Amṛta","start":"21:49","end":"23:04","startHours":21.82359614085918,"endHours":23.06318673315384,"quality":"auspicious"},{"name":"Kāla","start":"23:04","end":"00:18","startHours":23.06318673315384,"endHours":24.3027773254485,"quality":"inauspicious"},{"name":"Śubha","start":"00:18","end":"01:33","startHours":24.3027773254485,"endHours":25.54236791774316,"quality":"auspicious"},{"name":"Roga","start":"01:33","end":"02:47","startHours":25.54236791774316,"endHours":26.78195851003782,"quality":"inauspicious"},{"name":"Udveg","start":"02:47","end":"04:01","startHours":26.78195851003782,"endHours":28.02154910233248,"quality":"inauspicious"},{"name":"Chala","start":"04:01","end":"05:16","startHours":28.02154910233248,"endHours":29.26113969462714,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:16","end":"06:16","startHours":5.261139694627142,"endHours":6.261139694627142,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:16","end":"07:16","startHours":6.261139694627142,"endHours":7.261139694627142,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:16","end":"08:16","startHours":7.261139694627142,"endHours":8.261139694627142,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:16","end":"09:16","startHours":8.261139694627142,"endHours":9.261139694627142,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:16","end":"10:16","startHours":9.261139694627142,"endHours":10.261139694627142,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:16","end":"11:16","startHours":10.261139694627142,"endHours":11.261139694627142,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:16","end":"12:16","startHours":11.261139694627142,"endHours":12.261139694627142,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:16","end":"13:16","startHours":12.261139694627142,"endHours":13.261139694627142,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:16","end":"14:16","startHours":13.261139694627142,"endHours":14.261139694627142,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:16","end":"15:16","startHours":14.261139694627142,"endHours":15.261139694627142,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:16","end":"16:16","startHours":15.261139694627142,"endHours":16.26113969462714,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:16","end":"17:16","startHours":16.26113969462714,"endHours":17.26113969462714,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:16","end":"18:16","startHours":17.26113969462714,"endHours":18.26113969462714,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:16","end":"19:16","startHours":18.26113969462714,"endHours":19.26113969462714,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:16","end":"20:16","startHours":19.26113969462714,"endHours":20.26113969462714,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:16","end":"21:16","startHours":20.26113969462714,"endHours":21.26113969462714,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:16","end":"22:16","startHours":21.26113969462714,"endHours":22.26113969462714,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:16","end":"23:16","startHours":22.26113969462714,"endHours":23.26113969462714,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:16","end":"00:16","startHours":23.26113969462714,"endHours":24.26113969462714,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:16","end":"01:16","startHours":24.26113969462714,"endHours":25.26113969462714,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:16","end":"02:16","startHours":25.26113969462714,"endHours":26.26113969462714,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:16","end":"03:16","startHours":26.26113969462714,"endHours":27.26113969462714,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:16","end":"04:16","startHours":27.26113969462714,"endHours":28.26113969462714,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:16","end":"05:16","startHours":28.26113969462714,"endHours":29.26113969462714,"planetary_lord":"Venus"}],"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":"East (Pūrva)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"drikRitu":"Grīṣma (Summer)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":23.425317391347665,"eotMinutes":-1.2370395269098728,"ayanamsa":23.3846}},"calendars":{"vikram_samvat":2023,"vikram_samvatsara":"Siddhārthī","saka_samvat":1888,"saka_samvatsara":"Parābhava","bengali_samvat":1373,"malayalam_era":1142,"nanakshahi_year":497,"lunar_month":"Āṣāḍha","lunar_month_paksha_full":"Āṣāḍha Śukla Pakṣa","solar_month":"Mithuna (Āni)","ritu":"Grīṣma (Summer)","display_summary":"Āṣāḍha Śukla Dvitīyā · Vikram 2023 Siddhārthī · Śaka 1888 Parābhava"},"festivals":[{"id":"ratha-yatra","name":"Ratha-Yātrā (Jagannātha Puri)","name_sanskrit":"रथ यात्रा","tradition":"Vaishnava","associated_deity":"Jagannātha (Krishna) + Balarāma + Subhadrā","significance":"Jagannātha's annual ratha-yātrā at Puri.","vrata":false,"detection":{"tithi_number":2,"tithi_paksha":"Śukla","lunar_month":"Āṣāḍha"},"precedence":2},{"id":"mithuna-sankranti","name":"Mithuna Saṅkrānti","name_sanskrit":"मिथुन सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Gemini.","vrata":false,"detection":{"sun_rashi":"Mithuna"},"precedence":5}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"rishikesh"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga June 20, 1966 CE · Ṛṣikeśa · Vidhyamitra","description":"June 20, 1966 CE for Ṛṣikeśa: Śukla Dvitīyā, sūryodaya 05:16, sūryāsta 19:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1966-06-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1966-06-20","sa":"https://sa.vidhyamitra.com/city/rishikesh/1966-06-20","hi":"https://hi.vidhyamitra.com/city/rishikesh/1966-06-20","x-default":"https://vidhyamitra.com/city/rishikesh/1966-06-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-19T20:21:57.708Z","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":"2026-05-19T20:21:57.708Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-19T20:21:57.708Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}