{"id":"vidhyamitra:city-day:colombo:2005-10-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/colombo/2005-10-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2005-10-01","date_display":"October 1, 2005 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":2005,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2453644.770833,"kali_year":5107,"ahargana":1865179.2708,"sun":{"sidereal_longitude":163.2756,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":135.3177,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":332.0421,"elapsed_within_tithi_degrees":8.0421},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1,"moon_longitude":135.3177,"elapsed_within_degrees":1.9844},"yoga":{"number":23,"name":"Śubha","sum_longitude":298.5933},"karana":{"half_tithi_index":55,"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":2005,"month":10,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2453644.770833,"ahargana":1865179.2708,"kali_year":5107,"ayanamsa_lahiri":23.9333,"grahas":{"sun":{"sidereal_longitude":164.034984,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"moon":{"sidereal_longitude":137.25408400000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2},"retrograde":false,"latitude":2.8001},"mars":{"sidereal_longitude":29.34828399999998,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":true},"mercury":{"sidereal_longitude":173.696684,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":181.19178399999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":208.18248399999993,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":104.84218399999997,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":353.8264,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":173.8264,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","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":2005,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2453644.770833,"kali_year":5107,"ahargana":1865179.2708,"sun":{"sidereal_longitude":163.2756,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":135.3177,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":332.0421,"elapsed_within_tithi_degrees":8.0421},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1,"moon_longitude":135.3177,"elapsed_within_degrees":1.9844},"yoga":{"number":23,"name":"Śubha","sum_longitude":298.5933},"karana":{"half_tithi_index":55,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.8,"elongation":27.958},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.8,"opposition_distance":152.042}},"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":"05:58","sunsetLocal":"18:01","solarNoonLocal":"11:59","dayLengthHours":12.06079897130406,"dayLengthDisplay":"12 Hours 03 Mins 39 Secs","nightLengthDisplay":"11 Hours 56 Mins 21 Secs","moonriseLocal":"04:06","moonsetLocal":"16:18","rahuKala":{"name":"Rāhu Kāla","start":"08:58","end":"10:29","startHours":8.974590854064244,"endHours":10.482190725477253,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:30","end":"15:00","startHours":13.497390468303266,"endHours":15.004990339716274,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:58","end":"07:28","startHours":5.959391111238229,"endHours":7.466990982651237,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:46","end":"09:11","startHours":8.773577537875843,"endHours":9.175604170252646,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:28","end":"06:47","startHours":6.461924401709232,"endHours":6.783545707610673,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:35","end":"12:24","startHours":11.587763964513456,"endHours":12.391817229267062,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:21","end":"05:09","startHours":4.351284581731021,"endHours":5.155337846484626,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:57","end":"05:58","startHours":4.954324530296224,"endHours":5.959391111238229,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:00","end":"14:48","startHours":13.999923758774269,"endHours":14.803977023527873,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:49","end":"18:13","startHours":17.82019008254229,"endHours":18.220190082542288,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:01","end":"18:31","startHours":18.02019008254229,"endHours":18.522723373013292,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:46","end":"19:31","startHours":17.77019008254229,"endHours":19.52019008254229,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:35","end":"00:24","startHours":23.587763964513456,"endHours":24.391817229267062,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:58","end":"07:28","startHours":5.959391111238229,"endHours":7.466990982651237,"quality":"inauspicious"},{"name":"Śubha","start":"07:28","end":"08:58","startHours":7.466990982651237,"endHours":8.974590854064244,"quality":"auspicious"},{"name":"Roga","start":"08:58","end":"10:29","startHours":8.974590854064244,"endHours":10.482190725477253,"quality":"inauspicious"},{"name":"Udveg","start":"10:29","end":"11:59","startHours":10.482190725477253,"endHours":11.98979059689026,"quality":"inauspicious"},{"name":"Chala","start":"11:59","end":"13:30","startHours":11.98979059689026,"endHours":13.497390468303266,"quality":"neutral"},{"name":"Labha","start":"13:30","end":"15:00","startHours":13.497390468303266,"endHours":15.004990339716274,"quality":"auspicious"},{"name":"Amṛta","start":"15:00","end":"16:31","startHours":15.004990339716274,"endHours":16.512590211129282,"quality":"auspicious"},{"name":"Kāla","start":"16:31","end":"18:01","startHours":16.512590211129282,"endHours":18.02019008254229,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:01","end":"19:31","startHours":18.02019008254229,"endHours":19.512590211129282,"quality":"auspicious"},{"name":"Amṛta","start":"19:31","end":"21:00","startHours":19.512590211129282,"endHours":21.004990339716272,"quality":"auspicious"},{"name":"Kāla","start":"21:00","end":"22:30","startHours":21.004990339716272,"endHours":22.497390468303266,"quality":"inauspicious"},{"name":"Śubha","start":"22:30","end":"23:59","startHours":22.497390468303266,"endHours":23.98979059689026,"quality":"auspicious"},{"name":"Roga","start":"23:59","end":"01:29","startHours":23.98979059689026,"endHours":25.482190725477253,"quality":"inauspicious"},{"name":"Udveg","start":"01:29","end":"02:58","startHours":25.482190725477253,"endHours":26.974590854064246,"quality":"inauspicious"},{"name":"Chala","start":"02:58","end":"04:28","startHours":26.974590854064246,"endHours":28.466990982651236,"quality":"neutral"},{"name":"Labha","start":"04:28","end":"05:58","startHours":28.466990982651236,"endHours":29.95939111123823,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:58","end":"06:58","startHours":5.959391111238229,"endHours":6.959391111238229,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:58","end":"07:58","startHours":6.959391111238229,"endHours":7.959391111238229,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:58","end":"08:58","startHours":7.959391111238229,"endHours":8.95939111123823,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:58","end":"09:58","startHours":8.95939111123823,"endHours":9.95939111123823,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:58","end":"10:58","startHours":9.95939111123823,"endHours":10.95939111123823,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:58","end":"11:58","startHours":10.95939111123823,"endHours":11.95939111123823,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:58","end":"12:58","startHours":11.95939111123823,"endHours":12.95939111123823,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:58","end":"13:58","startHours":12.95939111123823,"endHours":13.95939111123823,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:58","end":"14:58","startHours":13.95939111123823,"endHours":14.95939111123823,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:58","end":"15:58","startHours":14.95939111123823,"endHours":15.95939111123823,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:58","end":"16:58","startHours":15.95939111123823,"endHours":16.95939111123823,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:58","end":"17:58","startHours":16.95939111123823,"endHours":17.95939111123823,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:58","end":"18:58","startHours":17.95939111123823,"endHours":18.95939111123823,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:58","end":"19:58","startHours":18.95939111123823,"endHours":19.95939111123823,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:58","end":"20:58","startHours":19.95939111123823,"endHours":20.95939111123823,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:58","end":"21:58","startHours":20.95939111123823,"endHours":21.95939111123823,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:58","end":"22:58","startHours":21.95939111123823,"endHours":22.95939111123823,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:58","end":"23:58","startHours":22.95939111123823,"endHours":23.95939111123823,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:58","end":"00:58","startHours":23.95939111123823,"endHours":24.95939111123823,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:58","end":"01:58","startHours":24.95939111123823,"endHours":25.95939111123823,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:58","end":"02:58","startHours":25.95939111123823,"endHours":26.95939111123823,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:58","end":"03:58","startHours":26.95939111123823,"endHours":27.95939111123823,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:58","end":"04:58","startHours":27.95939111123823,"endHours":28.95939111123823,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:58","end":"05:58","startHours":28.95939111123823,"endHours":29.95939111123823,"planetary_lord":"Mercury"}],"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":"East (Pūrva)","chandraVasa":"West","rahuVasa":"East","anandadiYoga":{"name":"Dhvaja","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":-3.1606416326990385,"eotMinutes":11.167764186584405,"ayanamsa":23.9333}},"calendars":{"vikram_samvat":2062,"vikram_samvatsara":"Vilambī","saka_samvat":1927,"saka_samvatsara":"Pārthiva","bengali_samvat":1412,"malayalam_era":1181,"nanakshahi_year":536,"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 Trayodaśī · Vikram 2062 Vilambī · Śaka 1927 Pārthiva"},"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":"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 October 1, 2005 CE · Colombo, Sri Lanka · Vidhyamitra","description":"October 1, 2005 CE for Colombo, Sri Lanka: Kṛṣṇa Trayodaśī, sūryodaya 05:58, sūryāsta 18:01.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/colombo/2005-10-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/colombo/2005-10-01","sa":"https://sa.vidhyamitra.com/city/colombo/2005-10-01","hi":"https://hi.vidhyamitra.com/city/colombo/2005-10-01","x-default":"https://vidhyamitra.com/city/colombo/2005-10-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T23:07:13.279Z","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":"2026-05-31T23:07:13.279Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T23:07:13.279Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}