{"id":"vidhyamitra:city-day:rishikesh:1964-05-22:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/1964-05-22","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1964-05-22","date_display":"May 22, 1964 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":1964,"month":5,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438537.770833,"kali_year":5066,"ahargana":1850072.2708,"sun":{"sidereal_longitude":37.6442,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":167.4074,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":129.7631,"elapsed_within_tithi_degrees":9.7631},"nakshatra":{"number":13,"name":"Hasta","pada":3,"moon_longitude":167.4074,"elapsed_within_degrees":7.4074},"yoga":{"number":16,"name":"Siddhi","sum_longitude":205.0516},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"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":1964,"month":5,"day":22,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2438537.770833,"ahargana":1850072.2708,"kali_year":5066,"ayanamsa_lahiri":23.3555,"grahas":{"sun":{"sidereal_longitude":37.62468200000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":169.32178199999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false,"latitude":4.4932},"mars":{"sidereal_longitude":17.908481999999992,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":13.243082000000015,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":16.84648199999998,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":73.06078200000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":true},"saturn":{"sidereal_longitude":311.897782,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":74.2679,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":254.2679,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","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":1964,"month":5,"day":22,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438537.770833,"kali_year":5066,"ahargana":1850072.2708,"sun":{"sidereal_longitude":37.6442,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":167.4074,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":129.7631,"elapsed_within_tithi_degrees":9.7631},"nakshatra":{"number":13,"name":"Hasta","pada":3,"moon_longitude":167.4074,"elapsed_within_degrees":7.4074},"yoga":{"number":16,"name":"Siddhi","sum_longitude":205.0516},"karana":{"half_tithi_index":21,"name":"Viṣṭi"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.493,"elongation":129.763},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.493,"opposition_distance":50.237}},"eclipse_window_40days":[]},"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":"05:20","sunsetLocal":"19:07","solarNoonLocal":"12:13","dayLengthHours":13.795272439265256,"dayLengthDisplay":"13 Hours 47 Mins 43 Secs","nightLengthDisplay":"10 Hours 12 Mins 17 Secs","moonriseLocal":"15:09","moonsetLocal":"02:51","rahuKala":{"name":"Rāhu Kāla","start":"10:30","end":"12:13","startHours":10.499888391653723,"endHours":12.22429744656188,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:40","end":"17:24","startHours":15.673115556378194,"endHours":17.39752461128635,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:03","end":"08:47","startHours":7.051070281837409,"endHours":8.775479336745565,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:33","end":"09:00","startHours":8.545558129424478,"endHours":9.005400544066653,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:54","end":"06:16","startHours":5.9014642452319706,"endHours":6.269338176945711,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:46","end":"12:41","startHours":11.764455031919706,"endHours":12.684139861204056,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:29","end":"04:24","startHours":3.4872915683605514,"endHours":4.406976397644901,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:11","end":"05:20","startHours":4.177055190323814,"endHours":5.326661226929252,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:31","end":"15:27","startHours":14.523509519772755,"endHours":15.443194349057105,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:55","end":"19:19","startHours":18.92193366619451,"endHours":19.321933666194507,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:07","end":"19:42","startHours":19.121933666194508,"endHours":19.69673668449723,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:52","end":"20:37","startHours":18.871933666194508,"endHours":20.621933666194508,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:46","end":"00:41","startHours":23.764455031919706,"endHours":24.684139861204056,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:20","end":"07:03","startHours":5.326661226929252,"endHours":7.051070281837409,"quality":"neutral"},{"name":"Labha","start":"07:03","end":"08:47","startHours":7.051070281837409,"endHours":8.775479336745565,"quality":"auspicious"},{"name":"Amṛta","start":"08:47","end":"10:30","startHours":8.775479336745565,"endHours":10.499888391653723,"quality":"auspicious"},{"name":"Kāla","start":"10:30","end":"12:13","startHours":10.499888391653723,"endHours":12.22429744656188,"quality":"inauspicious"},{"name":"Śubha","start":"12:13","end":"13:57","startHours":12.22429744656188,"endHours":13.948706501470037,"quality":"auspicious"},{"name":"Roga","start":"13:57","end":"15:40","startHours":13.948706501470037,"endHours":15.673115556378194,"quality":"inauspicious"},{"name":"Udveg","start":"15:40","end":"17:24","startHours":15.673115556378194,"endHours":17.39752461128635,"quality":"inauspicious"},{"name":"Chala","start":"17:24","end":"19:07","startHours":17.39752461128635,"endHours":19.121933666194508,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"19:07","end":"20:24","startHours":19.121933666194508,"endHours":20.39752461128635,"quality":"inauspicious"},{"name":"Udveg","start":"20:24","end":"21:40","startHours":20.39752461128635,"endHours":21.673115556378193,"quality":"inauspicious"},{"name":"Chala","start":"21:40","end":"22:57","startHours":21.673115556378193,"endHours":22.948706501470035,"quality":"neutral"},{"name":"Labha","start":"22:57","end":"00:13","startHours":22.948706501470035,"endHours":24.22429744656188,"quality":"auspicious"},{"name":"Amṛta","start":"00:13","end":"01:30","startHours":24.22429744656188,"endHours":25.499888391653723,"quality":"auspicious"},{"name":"Kāla","start":"01:30","end":"02:47","startHours":25.499888391653723,"endHours":26.775479336745565,"quality":"inauspicious"},{"name":"Śubha","start":"02:47","end":"04:03","startHours":26.775479336745565,"endHours":28.05107028183741,"quality":"auspicious"},{"name":"Roga","start":"04:03","end":"05:20","startHours":28.05107028183741,"endHours":29.326661226929254,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:20","end":"06:20","startHours":5.326661226929252,"endHours":6.326661226929252,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:20","end":"07:20","startHours":6.326661226929252,"endHours":7.326661226929252,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:20","end":"08:20","startHours":7.326661226929252,"endHours":8.326661226929252,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:20","end":"09:20","startHours":8.326661226929252,"endHours":9.326661226929252,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:20","end":"10:20","startHours":9.326661226929252,"endHours":10.326661226929252,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:20","end":"11:20","startHours":10.326661226929252,"endHours":11.326661226929252,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:20","end":"12:20","startHours":11.326661226929252,"endHours":12.326661226929252,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:20","end":"13:20","startHours":12.326661226929252,"endHours":13.326661226929252,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:20","end":"14:20","startHours":13.326661226929252,"endHours":14.326661226929252,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:20","end":"15:20","startHours":14.326661226929252,"endHours":15.326661226929252,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:20","end":"16:20","startHours":15.326661226929252,"endHours":16.326661226929254,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:20","end":"17:20","startHours":16.326661226929254,"endHours":17.326661226929254,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:20","end":"18:20","startHours":17.326661226929254,"endHours":18.326661226929254,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:20","end":"19:20","startHours":18.326661226929254,"endHours":19.326661226929254,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:20","end":"20:20","startHours":19.326661226929254,"endHours":20.326661226929254,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:20","end":"21:20","startHours":20.326661226929254,"endHours":21.326661226929254,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:20","end":"22:20","startHours":21.326661226929254,"endHours":22.326661226929254,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:20","end":"23:20","startHours":22.326661226929254,"endHours":23.326661226929254,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:20","end":"00:20","startHours":23.326661226929254,"endHours":24.326661226929254,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:20","end":"01:20","startHours":24.326661226929254,"endHours":25.326661226929254,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:20","end":"02:20","startHours":25.326661226929254,"endHours":26.326661226929254,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:20","end":"03:20","startHours":26.326661226929254,"endHours":27.326661226929254,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:20","end":"04:20","startHours":27.326661226929254,"endHours":28.326661226929254,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:20","end":"05:20","startHours":28.326661226929254,"endHours":29.326661226929254,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"North-West","rahuVasa":"South-East","anandadiYoga":{"name":"Saumya","quality":"Auspicious"},"drikRitu":"Grīṣma (Summer) (Drik)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":20.35268580887853,"eotMinutes":3.4717532062871586,"ayanamsa":23.3555}},"calendars":{"vikram_samvat":2021,"vikram_samvatsara":"Piṅgala","saka_samvat":1886,"saka_samvatsara":"Krodhi","bengali_samvat":1371,"malayalam_era":1140,"nanakshahi_year":495,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Śukla Pakṣa","solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Śukla Ekādaśī · Vikram 2021 Piṅgala · Śaka 1886 Krodhi"},"festivals":[{"id":"nirjala-ekadashi","name":"Nirjalā Ekādaśī","name_sanskrit":"निर्जला एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Strictest Ekādaśī (no water for 24 hours); Bhīma's vrata. Confers fruit of all 24 Ekādaśīs.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Jyeṣṭha"},"precedence":1,"sources":["Mahābhārata, Anuśāsana Parva"]},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5},{"id":"vrishabha-sankranti","name":"Vṛṣabha Saṅkrānti","name_sanskrit":"वृषभ सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Taurus.","vrata":false,"detection":{"sun_rashi":"Vṛṣabha"},"precedence":5}],"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":"rishikesh"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga May 22, 1964 CE · Ṛṣikeśa · Vidhyamitra","description":"May 22, 1964 CE for Ṛṣikeśa: Śukla Ekādaśī, sūryodaya 05:20, sūryāsta 19:07.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/1964-05-22","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/1964-05-22","sa":"https://sa.vidhyamitra.com/city/rishikesh/1964-05-22","hi":"https://hi.vidhyamitra.com/city/rishikesh/1964-05-22","x-default":"https://vidhyamitra.com/city/rishikesh/1964-05-22"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-20T05:20:23.976Z","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":"2026-05-20T05:20:23.976Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-20T05:20:23.976Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}