{"id":"vidhyamitra:city-day:colombo:2001-04-07:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/colombo/2001-04-07","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2001-04-07","date_display":"April 7, 2001 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":2001,"month":4,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2452006.770833,"kali_year":5102,"ahargana":1863541.2708,"sun":{"sidereal_longitude":353.5779,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":160.6492,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":167.0714,"elapsed_within_tithi_degrees":11.0714},"nakshatra":{"number":13,"name":"Hasta","pada":1,"moon_longitude":160.6492,"elapsed_within_degrees":0.6492},"yoga":{"number":12,"name":"Dhruva","sum_longitude":154.2271},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2001,"month":4,"day":7,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2452006.770833,"ahargana":1863541.2708,"kali_year":5102,"ayanamsa_lahiri":23.8707,"grahas":{"sun":{"sidereal_longitude":353.426967,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":158.64946699999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false,"latitude":4.432},"mars":{"sidereal_longitude":238.84746700000005,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":337.331967,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":44.785866999999996,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":341.082967,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":34.48976700000003,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":80.6155,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":260.6155,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","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":2001,"month":4,"day":7,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2452006.770833,"kali_year":5102,"ahargana":1863541.2708,"sun":{"sidereal_longitude":353.5779,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":160.6492,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":167.0714,"elapsed_within_tithi_degrees":11.0714},"nakshatra":{"number":13,"name":"Hasta","pada":1,"moon_longitude":160.6492,"elapsed_within_degrees":0.6492},"yoga":{"number":12,"name":"Dhruva","sum_longitude":154.2271},"karana":{"half_tithi_index":27,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.432,"elongation":167.071},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.432,"opposition_distance":12.929}},"eclipse_window_40days":[]},"city":{"slug":"colombo","name":"Colombo, Sri Lanka","lat":6.9271,"lon":79.8612,"tz_offset_hours":5.5,"country":"LK","tier":"diaspora"},"tier2":{"city":{"slug":"colombo","name":"Colombo, Sri Lanka","lat":6.9271,"lon":79.8612,"tz_offset_hours":5.5,"country":"LK","tier":"diaspora"},"sunriseLocal":"06:06","sunsetLocal":"18:20","solarNoonLocal":"12:13","dayLengthHours":12.223239522190056,"dayLengthDisplay":"12 Hours 13 Mins 24 Secs","nightLengthDisplay":"11 Hours 46 Mins 36 Secs","moonriseLocal":"17:12","moonsetLocal":"05:16","rahuKala":{"name":"Rāhu Kāla","start":"09:10","end":"10:41","startHours":9.161576995199702,"endHours":10.68948193547346,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:45","end":"15:16","startHours":13.745291816020973,"endHours":15.27319675629473,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:06","end":"07:38","startHours":6.105767114652189,"endHours":7.633672054925946,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:57","end":"09:22","startHours":8.957856336496535,"endHours":9.365297653902871,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:37","end":"06:56","startHours":6.615068761410108,"endHours":6.941021815335176,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:49","end":"12:37","startHours":11.809945558340882,"endHours":12.62482819315355,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:29","end":"05:17","startHours":4.476001845026849,"endHours":5.2908844798395185,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:05","end":"06:06","startHours":5.087163821136351,"endHours":6.105767114652189,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:15","end":"15:04","startHours":14.254593462778892,"endHours":15.069476097591563,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:08","end":"18:32","startHours":18.129006636842245,"endHours":18.529006636842244,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:20","end":"18:50","startHours":18.329006636842244,"endHours":18.838308283600163,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:05","end":"19:50","startHours":18.079006636842244,"endHours":19.829006636842244,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:49","end":"00:37","startHours":23.809945558340882,"endHours":24.62482819315355,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:06","end":"07:38","startHours":6.105767114652189,"endHours":7.633672054925946,"quality":"inauspicious"},{"name":"Śubha","start":"07:38","end":"09:10","startHours":7.633672054925946,"endHours":9.161576995199702,"quality":"auspicious"},{"name":"Roga","start":"09:10","end":"10:41","startHours":9.161576995199702,"endHours":10.68948193547346,"quality":"inauspicious"},{"name":"Udveg","start":"10:41","end":"12:13","startHours":10.68948193547346,"endHours":12.217386875747216,"quality":"inauspicious"},{"name":"Chala","start":"12:13","end":"13:45","startHours":12.217386875747216,"endHours":13.745291816020973,"quality":"neutral"},{"name":"Labha","start":"13:45","end":"15:16","startHours":13.745291816020973,"endHours":15.27319675629473,"quality":"auspicious"},{"name":"Amṛta","start":"15:16","end":"16:48","startHours":15.27319675629473,"endHours":16.801101696568487,"quality":"auspicious"},{"name":"Kāla","start":"16:48","end":"18:20","startHours":16.801101696568487,"endHours":18.329006636842244,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:20","end":"19:48","startHours":18.329006636842244,"endHours":19.801101696568487,"quality":"auspicious"},{"name":"Amṛta","start":"19:48","end":"21:16","startHours":19.801101696568487,"endHours":21.27319675629473,"quality":"auspicious"},{"name":"Kāla","start":"21:16","end":"22:45","startHours":21.27319675629473,"endHours":22.745291816020973,"quality":"inauspicious"},{"name":"Śubha","start":"22:45","end":"00:13","startHours":22.745291816020973,"endHours":24.217386875747216,"quality":"auspicious"},{"name":"Roga","start":"00:13","end":"01:41","startHours":24.217386875747216,"endHours":25.68948193547346,"quality":"inauspicious"},{"name":"Udveg","start":"01:41","end":"03:10","startHours":25.68948193547346,"endHours":27.161576995199702,"quality":"inauspicious"},{"name":"Chala","start":"03:10","end":"04:38","startHours":27.161576995199702,"endHours":28.633672054925945,"quality":"neutral"},{"name":"Labha","start":"04:38","end":"06:06","startHours":28.633672054925945,"endHours":30.10576711465219,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:06","end":"07:06","startHours":6.105767114652189,"endHours":7.105767114652189,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:06","end":"08:06","startHours":7.105767114652189,"endHours":8.105767114652188,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:06","end":"09:06","startHours":8.105767114652188,"endHours":9.105767114652188,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:06","end":"10:06","startHours":9.105767114652188,"endHours":10.105767114652188,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:06","end":"11:06","startHours":10.105767114652188,"endHours":11.105767114652188,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:06","end":"12:06","startHours":11.105767114652188,"endHours":12.105767114652188,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:06","end":"13:06","startHours":12.105767114652188,"endHours":13.105767114652188,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:06","end":"14:06","startHours":13.105767114652188,"endHours":14.105767114652188,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:06","end":"15:06","startHours":14.105767114652188,"endHours":15.105767114652188,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:06","end":"16:06","startHours":15.105767114652188,"endHours":16.10576711465219,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:06","end":"17:06","startHours":16.10576711465219,"endHours":17.10576711465219,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:06","end":"18:06","startHours":17.10576711465219,"endHours":18.10576711465219,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:06","end":"19:06","startHours":18.10576711465219,"endHours":19.10576711465219,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:06","end":"20:06","startHours":19.10576711465219,"endHours":20.10576711465219,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:06","end":"21:06","startHours":20.10576711465219,"endHours":21.10576711465219,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:06","end":"22:06","startHours":21.10576711465219,"endHours":22.10576711465219,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:06","end":"23:06","startHours":22.10576711465219,"endHours":23.10576711465219,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:06","end":"00:06","startHours":23.10576711465219,"endHours":24.10576711465219,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:06","end":"01:06","startHours":24.10576711465219,"endHours":25.10576711465219,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:06","end":"02:06","startHours":25.10576711465219,"endHours":26.10576711465219,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:06","end":"03:06","startHours":26.10576711465219,"endHours":27.10576711465219,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:06","end":"04:06","startHours":27.10576711465219,"endHours":28.10576711465219,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:06","end":"05:06","startHours":28.10576711465219,"endHours":29.10576711465219,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:06","end":"06:06","startHours":29.10576711465219,"endHours":30.10576711465219,"planetary_lord":"Mercury"}],"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":"East (Pūrva)","chandraVasa":"North-West","rahuVasa":"East","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":6.79170313079532,"eotMinutes":-2.4880125448329173,"ayanamsa":23.8707}},"calendars":{"vikram_samvat":2058,"vikram_samvatsara":"Jaya","saka_samvat":1923,"saka_samvatsara":"Vṛṣa","bengali_samvat":1408,"malayalam_era":1177,"nanakshahi_year":532,"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 Caturdaśī · Vikram 2058 Jaya · Śaka 1923 Vṛṣa"},"festivals":[],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"colombo"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga April 7, 2001 CE · Colombo, Sri Lanka · Vidhyamitra","description":"April 7, 2001 CE for Colombo, Sri Lanka: Śukla Caturdaśī, sūryodaya 06:06, sūryāsta 18:20.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/colombo/2001-04-07","hreflang_alternates":{"en":"https://vidhyamitra.com/city/colombo/2001-04-07","sa":"https://sa.vidhyamitra.com/city/colombo/2001-04-07","hi":"https://hi.vidhyamitra.com/city/colombo/2001-04-07","x-default":"https://vidhyamitra.com/city/colombo/2001-04-07"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T15:33:52.261Z","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":"2026-06-01T15:33:52.261Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T15:33:52.261Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}