{"id":"vidhyamitra:city-day:vrindavan:2031-05-11:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/2031-05-11","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2031-05-11","date_display":"May 11, 2031 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":2031,"month":5,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462997.770833,"kali_year":5133,"ahargana":1874532.2708,"sun":{"sidereal_longitude":25.8285,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":256.5362,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":230.7076,"elapsed_within_tithi_degrees":2.7076},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1,"moon_longitude":256.5362,"elapsed_within_degrees":3.2028},"yoga":{"number":22,"name":"Sādhya","sum_longitude":282.3647},"karana":{"half_tithi_index":38,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":2031,"month":5,"day":11,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2462997.770833,"ahargana":1874532.2708,"kali_year":5133,"ayanamsa_lahiri":24.291,"grahas":{"sun":{"sidereal_longitude":25.891830000000027,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":259.19192999999996,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false,"latitude":2.7858},"mars":{"sidereal_longitude":196.68732999999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":true},"mercury":{"sidereal_longitude":0.1471300000000042,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":243.70103000000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":true},"venus":{"sidereal_longitude":69.40352999999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":44.992230000000006,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":218.2594,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":38.2594,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","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":2031,"month":5,"day":11,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462997.770833,"kali_year":5133,"ahargana":1874532.2708,"sun":{"sidereal_longitude":25.8285,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":256.5362,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":230.7076,"elapsed_within_tithi_degrees":2.7076},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1,"moon_longitude":256.5362,"elapsed_within_degrees":3.2028},"yoga":{"number":22,"name":"Sādhya","sum_longitude":282.3647},"karana":{"half_tithi_index":38,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.786,"elongation":129.292},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.786,"opposition_distance":50.708}},"eclipse_window_40days":[{"offset_days":-4,"type":"lunar","occurs":true,"moon_latitude":-1.488,"opposition_distance":2.834},{"offset_days":10,"type":"solar","occurs":true,"moon_latitude":0.298,"elongation":1.486}]},"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":"05:33","sunsetLocal":"18:58","solarNoonLocal":"12:16","dayLengthHours":13.419159387728456,"dayLengthDisplay":"13 Hours 25 Mins 09 Secs","nightLengthDisplay":"10 Hours 34 Mins 51 Secs","moonriseLocal":"22:37","moonsetLocal":"09:01","rahuKala":{"name":"Rāhu Kāla","start":"17:18","end":"18:58","startHours":17.293031609333028,"endHours":18.970426532799085,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:16","end":"13:56","startHours":12.260846838934857,"endHours":13.938241762400914,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:37","end":"17:18","startHours":15.61563668586697,"endHours":17.293031609333028,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:41","end":"09:08","startHours":8.682404335540602,"endHours":9.129709648464884,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:07","end":"06:28","startHours":6.110398786225981,"endHours":6.468243036565407,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:49","end":"12:42","startHours":11.813541526010575,"endHours":12.708152151859139,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:46","end":"04:39","startHours":3.762045893373501,"endHours":4.656656519222064,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:26","end":"05:33","startHours":4.433003862759923,"endHours":5.551267145070629,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:30","end":"15:24","startHours":14.497373403556267,"endHours":15.391984029404831,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:46","end":"19:10","startHours":18.770426532799085,"endHours":19.170426532799084,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:58","end":"19:32","startHours":18.970426532799085,"endHours":19.529558173954438,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:43","end":"20:28","startHours":18.720426532799085,"endHours":20.470426532799085,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:49","end":"00:42","startHours":23.813541526010575,"endHours":24.70815215185914,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:33","end":"07:14","startHours":5.551267145070629,"endHours":7.228662068536686,"quality":"inauspicious"},{"name":"Chala","start":"07:14","end":"08:54","startHours":7.228662068536686,"endHours":8.906056992002743,"quality":"neutral"},{"name":"Labha","start":"08:54","end":"10:35","startHours":8.906056992002743,"endHours":10.5834519154688,"quality":"auspicious"},{"name":"Amṛta","start":"10:35","end":"12:16","startHours":10.5834519154688,"endHours":12.260846838934857,"quality":"auspicious"},{"name":"Kāla","start":"12:16","end":"13:56","startHours":12.260846838934857,"endHours":13.938241762400914,"quality":"inauspicious"},{"name":"Śubha","start":"13:56","end":"15:37","startHours":13.938241762400914,"endHours":15.61563668586697,"quality":"auspicious"},{"name":"Roga","start":"15:37","end":"17:18","startHours":15.61563668586697,"endHours":17.293031609333028,"quality":"inauspicious"},{"name":"Udveg","start":"17:18","end":"18:58","startHours":17.293031609333028,"endHours":18.970426532799085,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:58","end":"20:18","startHours":18.970426532799085,"endHours":20.293031609333028,"quality":"auspicious"},{"name":"Roga","start":"20:18","end":"21:37","startHours":20.293031609333028,"endHours":21.61563668586697,"quality":"inauspicious"},{"name":"Udveg","start":"21:37","end":"22:56","startHours":21.61563668586697,"endHours":22.938241762400914,"quality":"inauspicious"},{"name":"Chala","start":"22:56","end":"00:16","startHours":22.938241762400914,"endHours":24.260846838934857,"quality":"neutral"},{"name":"Labha","start":"00:16","end":"01:35","startHours":24.260846838934857,"endHours":25.5834519154688,"quality":"auspicious"},{"name":"Amṛta","start":"01:35","end":"02:54","startHours":25.5834519154688,"endHours":26.906056992002743,"quality":"auspicious"},{"name":"Kāla","start":"02:54","end":"04:14","startHours":26.906056992002743,"endHours":28.228662068536686,"quality":"inauspicious"},{"name":"Śubha","start":"04:14","end":"05:33","startHours":28.228662068536686,"endHours":29.55126714507063,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:33","end":"06:33","startHours":5.551267145070629,"endHours":6.551267145070629,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:33","end":"07:33","startHours":6.551267145070629,"endHours":7.551267145070629,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:33","end":"08:33","startHours":7.551267145070629,"endHours":8.551267145070629,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:33","end":"09:33","startHours":8.551267145070629,"endHours":9.551267145070629,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:33","end":"10:33","startHours":9.551267145070629,"endHours":10.551267145070629,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:33","end":"11:33","startHours":10.551267145070629,"endHours":11.551267145070629,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:33","end":"12:33","startHours":11.551267145070629,"endHours":12.551267145070629,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:33","end":"13:33","startHours":12.551267145070629,"endHours":13.551267145070629,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:33","end":"14:33","startHours":13.551267145070629,"endHours":14.551267145070629,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:33","end":"15:33","startHours":14.551267145070629,"endHours":15.551267145070629,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:33","end":"16:33","startHours":15.551267145070629,"endHours":16.55126714507063,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:33","end":"17:33","startHours":16.55126714507063,"endHours":17.55126714507063,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:33","end":"18:33","startHours":17.55126714507063,"endHours":18.55126714507063,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:33","end":"19:33","startHours":18.55126714507063,"endHours":19.55126714507063,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:33","end":"20:33","startHours":19.55126714507063,"endHours":20.55126714507063,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:33","end":"21:33","startHours":20.55126714507063,"endHours":21.55126714507063,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:33","end":"22:33","startHours":21.55126714507063,"endHours":22.55126714507063,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:33","end":"23:33","startHours":22.55126714507063,"endHours":23.55126714507063,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:33","end":"00:33","startHours":23.55126714507063,"endHours":24.55126714507063,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:33","end":"01:33","startHours":24.55126714507063,"endHours":25.55126714507063,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:33","end":"02:33","startHours":25.55126714507063,"endHours":26.55126714507063,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:33","end":"03:33","startHours":26.55126714507063,"endHours":27.55126714507063,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:33","end":"04:33","startHours":27.55126714507063,"endHours":28.55126714507063,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:33","end":"05:33","startHours":28.55126714507063,"endHours":29.55126714507063,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"East","rahuVasa":"North-East","anandadiYoga":{"name":"Śubha","quality":"Auspicious"},"drikRitu":"Vasanta (Spring) (Drik)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":17.787946071581825,"eotMinutes":3.71198966390865,"ayanamsa":24.291}},"calendars":{"vikram_samvat":2088,"vikram_samvatsara":"Raktākṣī","saka_samvat":1953,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1438,"malayalam_era":1207,"nanakshahi_year":562,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Kṛṣṇa Pakṣa","solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Kṛṣṇa Pañcamī · Vikram 2088 Raktākṣī · Śaka 1953 Virodhakṛt"},"festivals":[{"id":"mesha-sankranti","name":"Meṣa Saṅkrānti (Vaiśākhī / Vishu / Pohelā Boishākh / Bihu)","name_sanskrit":"मेष सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aries; solar new year. Regional: Vaiśākhī (Punjab) · Vishu (Kerala) · Pohelā Boishākh (Bengal) · Bihu (Assam) · Tamil Puthāṇḍu.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":1},{"id":"baisakhi","name":"Baisakhi (Vaiśākhī)","name_sanskrit":"वैशाखी","tradition":"Regional","associated_deity":"Sūrya + Khalsa Pantha (Sikh)","significance":"Punjab New Year + Sikh Khalsa founding day.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":2}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 11, 2031 CE · Vṛndāvana · Vidhyamitra","description":"May 11, 2031 CE for Vṛndāvana: Kṛṣṇa Pañcamī, sūryodaya 05:33, sūryāsta 18:58.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/2031-05-11","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/2031-05-11","sa":"https://sa.vidhyamitra.com/city/vrindavan/2031-05-11","hi":"https://hi.vidhyamitra.com/city/vrindavan/2031-05-11","x-default":"https://vidhyamitra.com/city/vrindavan/2031-05-11"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T00:30:12.607Z","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":"2026-05-15T00:30:12.607Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T00:30:12.607Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}