{"id":"vidhyamitra:city-day:vrindavan:1931-10-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/1931-10-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1931-10-01","date_display":"October 1, 1931 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":1931,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2426615.770833,"kali_year":5033,"ahargana":1838150.2708,"sun":{"sidereal_longitude":163.4211,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":33.1472,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":229.7261,"elapsed_within_tithi_degrees":1.7261},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2,"moon_longitude":33.1472,"elapsed_within_degrees":6.4805},"yoga":{"number":15,"name":"Vajra","sum_longitude":196.5683},"karana":{"half_tithi_index":38,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":1931,"month":10,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2426615.770833,"ahargana":1838150.2708,"kali_year":5033,"ayanamsa_lahiri":22.8996,"grahas":{"sun":{"sidereal_longitude":164.00089000000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"moon":{"sidereal_longitude":29.948590000000024,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false,"latitude":3.2999},"mars":{"sidereal_longitude":197.32358999999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":151.57268999999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":113.44308999999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":171.08869000000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":264.24719000000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":345.9529,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":165.9529,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"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":1931,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2426615.770833,"kali_year":5033,"ahargana":1838150.2708,"sun":{"sidereal_longitude":163.4211,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":33.1472,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":229.7261,"elapsed_within_tithi_degrees":1.7261},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2,"moon_longitude":33.1472,"elapsed_within_degrees":6.4805},"yoga":{"number":15,"name":"Vajra","sum_longitude":196.5683},"karana":{"half_tithi_index":38,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.3,"elongation":130.274},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.3,"opposition_distance":49.726}},"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":"06:10","sunsetLocal":"18:06","solarNoonLocal":"12:08","dayLengthHours":11.934646033750646,"dayLengthDisplay":"11 Hours 56 Mins 05 Secs","nightLengthDisplay":"12 Hours 03 Mins 55 Secs","moonriseLocal":"20:29","moonsetLocal":"09:55","rahuKala":{"name":"Rāhu Kāla","start":"13:38","end":"15:07","startHours":13.628414684442424,"endHours":15.120245438661254,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:10","end":"07:40","startHours":6.16926091334827,"endHours":7.661091667567101,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:09","end":"10:39","startHours":9.15292242178593,"endHours":10.644753176004762,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:57","end":"09:21","startHours":8.954011654556755,"endHours":9.351833189015109,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:40","end":"06:59","startHours":6.666537831421214,"endHours":6.984795058987897,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:44","end":"12:32","startHours":11.738762395765239,"endHours":12.53440546468195,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:35","end":"05:22","startHours":4.577974775514851,"endHours":5.3736178444315605,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:10","end":"06:10","startHours":5.174707077202383,"endHours":6.16926091334827,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:08","end":"14:55","startHours":14.125691602515367,"endHours":14.921334671432076,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:54","end":"18:18","startHours":17.903906947098918,"endHours":18.303906947098916,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:06","end":"18:36","startHours":18.103906947098917,"endHours":18.601183865171862,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:51","end":"19:36","startHours":17.853906947098917,"endHours":19.603906947098917,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:44","end":"00:32","startHours":23.73876239576524,"endHours":24.53440546468195,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:10","end":"07:40","startHours":6.16926091334827,"endHours":7.661091667567101,"quality":"auspicious"},{"name":"Roga","start":"07:40","end":"09:09","startHours":7.661091667567101,"endHours":9.15292242178593,"quality":"inauspicious"},{"name":"Udveg","start":"09:09","end":"10:39","startHours":9.15292242178593,"endHours":10.644753176004762,"quality":"inauspicious"},{"name":"Chala","start":"10:39","end":"12:08","startHours":10.644753176004762,"endHours":12.136583930223594,"quality":"neutral"},{"name":"Labha","start":"12:08","end":"13:38","startHours":12.136583930223594,"endHours":13.628414684442424,"quality":"auspicious"},{"name":"Amṛta","start":"13:38","end":"15:07","startHours":13.628414684442424,"endHours":15.120245438661254,"quality":"auspicious"},{"name":"Kāla","start":"15:07","end":"16:37","startHours":15.120245438661254,"endHours":16.612076192880085,"quality":"inauspicious"},{"name":"Śubha","start":"16:37","end":"18:06","startHours":16.612076192880085,"endHours":18.103906947098917,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:06","end":"19:37","startHours":18.103906947098917,"endHours":19.612076192880085,"quality":"auspicious"},{"name":"Kāla","start":"19:37","end":"21:07","startHours":19.612076192880085,"endHours":21.120245438661257,"quality":"inauspicious"},{"name":"Śubha","start":"21:07","end":"22:38","startHours":21.120245438661257,"endHours":22.628414684442426,"quality":"auspicious"},{"name":"Roga","start":"22:38","end":"00:08","startHours":22.628414684442426,"endHours":24.136583930223594,"quality":"inauspicious"},{"name":"Udveg","start":"00:08","end":"01:39","startHours":24.136583930223594,"endHours":25.644753176004762,"quality":"inauspicious"},{"name":"Chala","start":"01:39","end":"03:09","startHours":25.644753176004762,"endHours":27.15292242178593,"quality":"neutral"},{"name":"Labha","start":"03:09","end":"04:40","startHours":27.15292242178593,"endHours":28.661091667567103,"quality":"auspicious"},{"name":"Amṛta","start":"04:40","end":"06:10","startHours":28.661091667567103,"endHours":30.16926091334827,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:10","end":"07:10","startHours":6.16926091334827,"endHours":7.16926091334827,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:10","end":"08:10","startHours":7.16926091334827,"endHours":8.169260913348271,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:10","end":"09:10","startHours":8.169260913348271,"endHours":9.169260913348271,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:10","end":"10:10","startHours":9.169260913348271,"endHours":10.169260913348271,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:10","end":"11:10","startHours":10.169260913348271,"endHours":11.169260913348271,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:10","end":"12:10","startHours":11.169260913348271,"endHours":12.169260913348271,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:10","end":"13:10","startHours":12.169260913348271,"endHours":13.169260913348271,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:10","end":"14:10","startHours":13.169260913348271,"endHours":14.169260913348271,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:10","end":"15:10","startHours":14.169260913348271,"endHours":15.169260913348271,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:10","end":"16:10","startHours":15.169260913348271,"endHours":16.16926091334827,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:10","end":"17:10","startHours":16.16926091334827,"endHours":17.16926091334827,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:10","end":"18:10","startHours":17.16926091334827,"endHours":18.16926091334827,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:10","end":"19:10","startHours":18.16926091334827,"endHours":19.16926091334827,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:10","end":"20:10","startHours":19.16926091334827,"endHours":20.16926091334827,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:10","end":"21:10","startHours":20.16926091334827,"endHours":21.16926091334827,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:10","end":"22:10","startHours":21.16926091334827,"endHours":22.16926091334827,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:10","end":"23:10","startHours":22.16926091334827,"endHours":23.16926091334827,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:10","end":"00:10","startHours":23.16926091334827,"endHours":24.16926091334827,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:10","end":"01:10","startHours":24.16926091334827,"endHours":25.16926091334827,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:10","end":"02:10","startHours":25.16926091334827,"endHours":26.16926091334827,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:10","end":"03:10","startHours":26.16926091334827,"endHours":27.16926091334827,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:10","end":"04:10","startHours":27.16926091334827,"endHours":28.16926091334827,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:10","end":"05:10","startHours":28.16926091334827,"endHours":29.16926091334827,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:10","end":"06:10","startHours":29.16926091334827,"endHours":30.16926091334827,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"East","rahuVasa":"North-West","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-2.738961848289642,"eotMinutes":11.167764186584405,"ayanamsa":22.8996}},"calendars":{"vikram_samvat":1988,"vikram_samvatsara":"Tāraṇa","saka_samvat":1853,"saka_samvatsara":"Prajāpati","bengali_samvat":1338,"malayalam_era":1107,"nanakshahi_year":462,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Pañcamī · Vikram 1988 Tāraṇa · Śaka 1853 Prajāpati"},"festivals":[],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","url":"/day/-3137-12-25","relevance":0.5}]},"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 October 1, 1931 CE · Vṛndāvana · Vidhyamitra","description":"October 1, 1931 CE for Vṛndāvana: Kṛṣṇa Pañcamī, sūryodaya 06:10, sūryāsta 18:06.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/1931-10-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/1931-10-01","sa":"https://sa.vidhyamitra.com/city/vrindavan/1931-10-01","hi":"https://hi.vidhyamitra.com/city/vrindavan/1931-10-01","x-default":"https://vidhyamitra.com/city/vrindavan/1931-10-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T03:31:02.484Z","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":"2026-05-31T03:31:02.484Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T03:31:02.484Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}