{"id":"vidhyamitra:city-day:vrindavan:1961-05-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/1961-05-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1961-05-01","date_display":"May 1, 1961 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":1961,"month":5,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2437420.770833,"kali_year":5063,"ahargana":1848955.2708,"sun":{"sidereal_longitude":17.27,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":199.6876,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":182.4176,"elapsed_within_tithi_degrees":2.4176},"nakshatra":{"number":15,"name":"Svātī","pada":4,"moon_longitude":199.6876,"elapsed_within_degrees":13.0209},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":216.9576},"karana":{"half_tithi_index":30,"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":1961,"month":5,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2437420.770833,"ahargana":1848955.2708,"kali_year":5063,"ayanamsa_lahiri":23.3128,"grahas":{"sun":{"sidereal_longitude":17.120659999999987,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":200.44636000000003,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false,"latitude":4.1178},"mars":{"sidereal_longitude":94.65055999999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":16.428260000000023,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":283.60276,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"venus":{"sidereal_longitude":350.00696,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":277.10126,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":133.452,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":313.452,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"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":1961,"month":5,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2437420.770833,"kali_year":5063,"ahargana":1848955.2708,"sun":{"sidereal_longitude":17.27,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":199.6876,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":182.4176,"elapsed_within_tithi_degrees":2.4176},"nakshatra":{"number":15,"name":"Svātī","pada":4,"moon_longitude":199.6876,"elapsed_within_degrees":13.0209},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":216.9576},"karana":{"half_tithi_index":30,"name":"Bālava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.118,"elongation":177.582},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.118,"opposition_distance":2.418}},"eclipse_window_40days":[]},"city":{"slug":"vrindavan","name":"Vṛndāvana","lat":27.565,"lon":77.6593,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"vrindavan","name":"Vṛndāvana","lat":27.565,"lon":77.6593,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"05:40","sunsetLocal":"18:52","solarNoonLocal":"12:16","dayLengthHours":13.199315931797512,"dayLengthDisplay":"13 Hours 11 Mins 58 Secs","nightLengthDisplay":"10 Hours 48 Mins 02 Secs","moonriseLocal":"19:01","moonsetLocal":"05:58","rahuKala":{"name":"Rāhu Kāla","start":"07:19","end":"08:58","startHours":7.3243364034264875,"endHours":8.974250894901177,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:37","end":"12:16","startHours":10.624165386375864,"endHours":12.274079877850554,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:55","end":"15:34","startHours":13.923994369325243,"endHours":15.573908860799932,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:45","end":"09:12","startHours":8.754262296037885,"endHours":9.194239493764467,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:13","end":"06:35","startHours":6.224393409110028,"endHours":6.576375167291294,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:43","startHours":11.83410268012397,"endHours":12.714057075577138,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:55","end":"04:48","startHours":3.9145131210454633,"endHours":4.794467516498631,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:34","end":"05:40","startHours":4.574478917635339,"endHours":5.674421911951798,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:28","end":"15:21","startHours":14.473965866483473,"endHours":15.35392026193664,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:40","end":"19:04","startHours":18.67373784374931,"endHours":19.07373784374931,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:52","end":"19:25","startHours":18.87373784374931,"endHours":19.42370934090754,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:37","end":"20:22","startHours":18.62373784374931,"endHours":20.37373784374931,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:43","startHours":23.83410268012397,"endHours":24.714057075577138,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:40","end":"07:19","startHours":5.674421911951798,"endHours":7.3243364034264875,"quality":"auspicious"},{"name":"Kāla","start":"07:19","end":"08:58","startHours":7.3243364034264875,"endHours":8.974250894901177,"quality":"inauspicious"},{"name":"Śubha","start":"08:58","end":"10:37","startHours":8.974250894901177,"endHours":10.624165386375864,"quality":"auspicious"},{"name":"Roga","start":"10:37","end":"12:16","startHours":10.624165386375864,"endHours":12.274079877850554,"quality":"inauspicious"},{"name":"Udveg","start":"12:16","end":"13:55","startHours":12.274079877850554,"endHours":13.923994369325243,"quality":"inauspicious"},{"name":"Chala","start":"13:55","end":"15:34","startHours":13.923994369325243,"endHours":15.573908860799932,"quality":"neutral"},{"name":"Labha","start":"15:34","end":"17:13","startHours":15.573908860799932,"endHours":17.22382335227462,"quality":"auspicious"},{"name":"Amṛta","start":"17:13","end":"18:52","startHours":17.22382335227462,"endHours":18.87373784374931,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:52","end":"20:13","startHours":18.87373784374931,"endHours":20.22382335227462,"quality":"neutral"},{"name":"Labha","start":"20:13","end":"21:34","startHours":20.22382335227462,"endHours":21.573908860799932,"quality":"auspicious"},{"name":"Amṛta","start":"21:34","end":"22:55","startHours":21.573908860799932,"endHours":22.923994369325243,"quality":"auspicious"},{"name":"Kāla","start":"22:55","end":"00:16","startHours":22.923994369325243,"endHours":24.274079877850554,"quality":"inauspicious"},{"name":"Śubha","start":"00:16","end":"01:37","startHours":24.274079877850554,"endHours":25.624165386375864,"quality":"auspicious"},{"name":"Roga","start":"01:37","end":"02:58","startHours":25.624165386375864,"endHours":26.974250894901175,"quality":"inauspicious"},{"name":"Udveg","start":"02:58","end":"04:19","startHours":26.974250894901175,"endHours":28.324336403426486,"quality":"inauspicious"},{"name":"Chala","start":"04:19","end":"05:40","startHours":28.324336403426486,"endHours":29.674421911951796,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:40","end":"06:40","startHours":5.674421911951798,"endHours":6.674421911951798,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:40","end":"07:40","startHours":6.674421911951798,"endHours":7.674421911951798,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:40","end":"08:40","startHours":7.674421911951798,"endHours":8.674421911951798,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:40","end":"09:40","startHours":8.674421911951798,"endHours":9.674421911951798,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:40","end":"10:40","startHours":9.674421911951798,"endHours":10.674421911951798,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:40","end":"11:40","startHours":10.674421911951798,"endHours":11.674421911951798,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:40","end":"12:40","startHours":11.674421911951798,"endHours":12.674421911951798,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:40","end":"13:40","startHours":12.674421911951798,"endHours":13.674421911951798,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:40","end":"14:40","startHours":13.674421911951798,"endHours":14.674421911951798,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:40","end":"15:40","startHours":14.674421911951798,"endHours":15.674421911951798,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:40","end":"16:40","startHours":15.674421911951798,"endHours":16.674421911951796,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:40","end":"17:40","startHours":16.674421911951796,"endHours":17.674421911951796,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:40","end":"18:40","startHours":17.674421911951796,"endHours":18.674421911951796,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:40","end":"19:40","startHours":18.674421911951796,"endHours":19.674421911951796,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:40","end":"20:40","startHours":19.674421911951796,"endHours":20.674421911951796,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:40","end":"21:40","startHours":20.674421911951796,"endHours":21.674421911951796,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:40","end":"22:40","startHours":21.674421911951796,"endHours":22.674421911951796,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:40","end":"23:40","startHours":22.674421911951796,"endHours":23.674421911951796,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:40","end":"00:40","startHours":23.674421911951796,"endHours":24.674421911951796,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:40","end":"01:40","startHours":24.674421911951796,"endHours":25.674421911951796,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:40","end":"02:40","startHours":25.674421911951796,"endHours":26.674421911951796,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:40","end":"03:40","startHours":26.674421911951796,"endHours":27.674421911951796,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:40","end":"04:40","startHours":27.674421911951796,"endHours":28.674421911951796,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:40","end":"05:40","startHours":28.674421911951796,"endHours":29.674421911951796,"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","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"North","rahuVasa":"North-East","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":14.948763240501544,"eotMinutes":2.918007328966811,"ayanamsa":23.3128}},"calendars":{"vikram_samvat":2018,"vikram_samvatsara":"Ānanda","saka_samvat":1883,"saka_samvatsara":"Plava","bengali_samvat":1368,"malayalam_era":1137,"nanakshahi_year":492,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Jyeṣṭha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Kṛṣṇa Pratipada · Vikram 2018 Ānanda · Śaka 1883 Plava"},"festivals":[{"id":"narada-jayanti","name":"Bhagavān Nārada Jayantī","name_sanskrit":"भगवान् नारद जयन्ती","tradition":"Vaishnava","associated_deity":"Devarṣi Nārada (ādi-bhakta · Vyāsa's guru)","significance":"Manifestation of Devarṣi Nārada — ādi-bhakta and tri-loka-saṅcāri who instructed Vyāsa to compose Śrīmad Bhāgavata. Without Nārada, no Bhāgavata; without Bhāgavata, no Krishna-tattva-pratiṣṭhā in Kali Yuga. Falls on Vaiśākha Kṛṣṇa Pratipadā (day after Buddha Pūrṇimā).","vrata":true,"primary_observance":"Recitation of Nārada-Bhakti-Sūtra; meditation on Krishna as taught by Nārada to Vyāsa (Bhāgavata 1.5)","detection":{"tithi_number":16,"tithi_paksha":"Kṛṣṇa","lunar_month":"Vaiśākha","lunar_month_system":"amanta"},"precedence":1,"sources":["Bhāgavata Purāṇa 1.5-6 (Nārada-Vyāsa-saṁvāda)","Nārada-Bhakti-Sūtra"]}],"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":"vrindavan"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga May 1, 1961 CE · Vṛndāvana · Vidhyamitra","description":"May 1, 1961 CE for Vṛndāvana: Kṛṣṇa Pratipada, sūryodaya 05:40, sūryāsta 18:52.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/1961-05-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/1961-05-01","sa":"https://sa.vidhyamitra.com/city/vrindavan/1961-05-01","hi":"https://hi.vidhyamitra.com/city/vrindavan/1961-05-01","x-default":"https://vidhyamitra.com/city/vrindavan/1961-05-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T16:37:58.952Z","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":"2026-05-31T16:37:58.952Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T16:37:58.952Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}