{"id":"vidhyamitra:city-day:vrindavan:2137-04-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/vrindavan/2137-04-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2137-04-04","date_display":"April 4, 2137 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":2137,"month":4,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2501676.770833,"kali_year":5238,"ahargana":1913211.2708,"sun":{"sidereal_longitude":348.4765,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":139.0826,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":150.606,"elapsed_within_tithi_degrees":6.606},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2,"moon_longitude":139.0826,"elapsed_within_degrees":5.7492},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":127.5591},"karana":{"half_tithi_index":25,"name":"Taitila"},"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":2137,"month":4,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2501676.770833,"ahargana":1913211.2708,"kali_year":5238,"ayanamsa_lahiri":25.7704,"grahas":{"sun":{"sidereal_longitude":348.630708,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":139.767308,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false,"latitude":0.7634},"mars":{"sidereal_longitude":332.472308,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":326.643608,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":218.75870800000007,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":303.673008,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":266.76590799999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":328.8599,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":148.8599,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","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":2137,"month":4,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2501676.770833,"kali_year":5238,"ahargana":1913211.2708,"sun":{"sidereal_longitude":348.4765,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":139.0826,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":150.606,"elapsed_within_tithi_degrees":6.606},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2,"moon_longitude":139.0826,"elapsed_within_degrees":5.7492},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":127.5591},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.763,"elongation":150.606},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.763,"opposition_distance":29.394}},"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":"06:07","sunsetLocal":"18:38","solarNoonLocal":"12:23","dayLengthHours":12.522730977048138,"dayLengthDisplay":"12 Hours 31 Mins 22 Secs","nightLengthDisplay":"11 Hours 28 Mins 38 Secs","moonriseLocal":"16:13","moonsetLocal":"04:42","rahuKala":{"name":"Rāhu Kāla","start":"13:57","end":"15:31","startHours":13.944781757113187,"endHours":15.510123129244203,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:07","end":"07:41","startHours":6.1180748964581015,"endHours":7.683416268589118,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:15","end":"10:49","startHours":9.248757640720136,"endHours":10.814099012851152,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:02","end":"09:27","startHours":9.040045457769335,"endHours":9.457469823670937,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:38","end":"06:58","startHours":6.639855353835108,"endHours":6.973794846556391,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:58","end":"12:48","startHours":11.962016019080565,"endHours":12.796864750883774,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:27","end":"05:17","startHours":4.448377432851683,"endHours":5.283226164654892,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:04","end":"06:07","startHours":5.07451398170409,"endHours":6.1180748964581015,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:28","end":"15:18","startHours":14.466562214490192,"endHours":15.301410946293402,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:26","end":"18:50","startHours":18.44080587350624,"endHours":18.840805873506238,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:38","end":"19:10","startHours":18.64080587350624,"endHours":19.162586330883244,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:23","end":"20:08","startHours":18.39080587350624,"endHours":20.14080587350624,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:58","end":"00:48","startHours":23.962016019080565,"endHours":24.79686475088377,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:07","end":"07:41","startHours":6.1180748964581015,"endHours":7.683416268589118,"quality":"auspicious"},{"name":"Roga","start":"07:41","end":"09:15","startHours":7.683416268589118,"endHours":9.248757640720136,"quality":"inauspicious"},{"name":"Udveg","start":"09:15","end":"10:49","startHours":9.248757640720136,"endHours":10.814099012851152,"quality":"inauspicious"},{"name":"Chala","start":"10:49","end":"12:23","startHours":10.814099012851152,"endHours":12.379440384982171,"quality":"neutral"},{"name":"Labha","start":"12:23","end":"13:57","startHours":12.379440384982171,"endHours":13.944781757113187,"quality":"auspicious"},{"name":"Amṛta","start":"13:57","end":"15:31","startHours":13.944781757113187,"endHours":15.510123129244203,"quality":"auspicious"},{"name":"Kāla","start":"15:31","end":"17:05","startHours":15.510123129244203,"endHours":17.075464501375222,"quality":"inauspicious"},{"name":"Śubha","start":"17:05","end":"18:38","startHours":17.075464501375222,"endHours":18.64080587350624,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:38","end":"20:05","startHours":18.64080587350624,"endHours":20.075464501375222,"quality":"auspicious"},{"name":"Kāla","start":"20:05","end":"21:31","startHours":20.075464501375222,"endHours":21.510123129244203,"quality":"inauspicious"},{"name":"Śubha","start":"21:31","end":"22:57","startHours":21.510123129244203,"endHours":22.944781757113187,"quality":"auspicious"},{"name":"Roga","start":"22:57","end":"00:23","startHours":22.944781757113187,"endHours":24.379440384982168,"quality":"inauspicious"},{"name":"Udveg","start":"00:23","end":"01:49","startHours":24.379440384982168,"endHours":25.814099012851152,"quality":"inauspicious"},{"name":"Chala","start":"01:49","end":"03:15","startHours":25.814099012851152,"endHours":27.248757640720136,"quality":"neutral"},{"name":"Labha","start":"03:15","end":"04:41","startHours":27.248757640720136,"endHours":28.68341626858912,"quality":"auspicious"},{"name":"Amṛta","start":"04:41","end":"06:07","startHours":28.68341626858912,"endHours":30.1180748964581,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:07","end":"07:07","startHours":6.1180748964581015,"endHours":7.1180748964581015,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:07","end":"08:07","startHours":7.1180748964581015,"endHours":8.1180748964581,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:07","end":"09:07","startHours":8.1180748964581,"endHours":9.1180748964581,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:07","end":"10:07","startHours":9.1180748964581,"endHours":10.1180748964581,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:07","end":"11:07","startHours":10.1180748964581,"endHours":11.1180748964581,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:07","end":"12:07","startHours":11.1180748964581,"endHours":12.1180748964581,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:07","end":"13:07","startHours":12.1180748964581,"endHours":13.1180748964581,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:07","end":"14:07","startHours":13.1180748964581,"endHours":14.1180748964581,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:07","end":"15:07","startHours":14.1180748964581,"endHours":15.1180748964581,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:07","end":"16:07","startHours":15.1180748964581,"endHours":16.1180748964581,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:07","end":"17:07","startHours":16.1180748964581,"endHours":17.1180748964581,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:07","end":"18:07","startHours":17.1180748964581,"endHours":18.1180748964581,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:07","end":"19:07","startHours":18.1180748964581,"endHours":19.1180748964581,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:07","end":"20:07","startHours":19.1180748964581,"endHours":20.1180748964581,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:07","end":"21:07","startHours":20.1180748964581,"endHours":21.1180748964581,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:07","end":"22:07","startHours":21.1180748964581,"endHours":22.1180748964581,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:07","end":"23:07","startHours":22.1180748964581,"endHours":23.1180748964581,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:07","end":"00:07","startHours":23.1180748964581,"endHours":24.1180748964581,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:07","end":"01:07","startHours":24.1180748964581,"endHours":25.1180748964581,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:07","end":"02:07","startHours":25.1180748964581,"endHours":26.1180748964581,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:07","end":"03:07","startHours":26.1180748964581,"endHours":27.1180748964581,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:07","end":"04:07","startHours":27.1180748964581,"endHours":28.1180748964581,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:07","end":"05:07","startHours":28.1180748964581,"endHours":29.1180748964581,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:07","end":"06:07","startHours":29.1180748964581,"endHours":30.1180748964581,"planetary_lord":"Moon"}],"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","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"West","rahuVasa":"North-West","anandadiYoga":{"name":"Sushira","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":5.676953352078794,"eotMinutes":-3.4036230989301703,"ayanamsa":25.7704}},"calendars":{"vikram_samvat":2194,"vikram_samvatsara":"Sādhāraṇa","saka_samvat":2059,"saka_samvatsara":"Hemalambī","bengali_samvat":1544,"malayalam_era":1313,"nanakshahi_year":668,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Trayodaśī · Vikram 2194 Sādhāraṇa · Śaka 2059 Hemalambī"},"festivals":[{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"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":[]},"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 April 4, 2137 CE · Vṛndāvana · Vidhyamitra","description":"April 4, 2137 CE for Vṛndāvana: Śukla Trayodaśī, sūryodaya 06:07, sūryāsta 18:38.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/vrindavan/2137-04-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/vrindavan/2137-04-04","sa":"https://sa.vidhyamitra.com/city/vrindavan/2137-04-04","hi":"https://hi.vidhyamitra.com/city/vrindavan/2137-04-04","x-default":"https://vidhyamitra.com/city/vrindavan/2137-04-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T21:36:59.848Z","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":"2026-05-31T21:36:59.848Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T21:36:59.848Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}