{"id":"vidhyamitra:city-day:colombo:2030-01-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/colombo/2030-01-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2030-01-17","date_display":"January 17, 2030 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":2030,"month":1,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462518.770833,"kali_year":5131,"ahargana":1874053.2708,"sun":{"sidereal_longitude":272.5124,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":61.059,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":148.5466,"elapsed_within_tithi_degrees":4.5466},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3,"moon_longitude":61.059,"elapsed_within_degrees":7.7257},"yoga":{"number":26,"name":"Indra","sum_longitude":333.5714},"karana":{"half_tithi_index":24,"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":2030,"month":1,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2462518.770833,"ahargana":1874053.2708,"kali_year":5131,"ayanamsa_lahiri":24.2727,"grahas":{"sun":{"sidereal_longitude":272.68073200000003,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":62.23903200000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false,"latitude":0.2024},"mars":{"sidereal_longitude":302.64263200000005,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":248.707132,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":208.98533199999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":255.77073199999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":23.736231999999973,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":243.6391,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":63.6391,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","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":2030,"month":1,"day":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462518.770833,"kali_year":5131,"ahargana":1874053.2708,"sun":{"sidereal_longitude":272.5124,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":61.059,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":148.5466,"elapsed_within_tithi_degrees":4.5466},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3,"moon_longitude":61.059,"elapsed_within_degrees":7.7257},"yoga":{"number":26,"name":"Indra","sum_longitude":333.5714},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.202,"elongation":148.547},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.202,"opposition_distance":31.453}},"eclipse_window_40days":[{"offset_days":-13,"type":"solar","occurs":true,"moon_latitude":1.192,"elongation":0.543}]},"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":"06:28","sunsetLocal":"18:14","solarNoonLocal":"12:21","dayLengthHours":11.767704846635148,"dayLengthDisplay":"11 Hours 46 Mins 04 Secs","nightLengthDisplay":"12 Hours 13 Mins 56 Secs","moonriseLocal":"16:04","moonsetLocal":"04:33","rahuKala":{"name":"Rāhu Kāla","start":"13:49","end":"15:17","startHours":13.813984584931204,"endHours":15.284947690760596,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:28","end":"07:56","startHours":6.459169055784236,"endHours":7.9301321616136295,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:24","end":"10:52","startHours":9.401095267443022,"endHours":10.872058373272417,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:12","end":"09:36","startHours":9.204966853332436,"endHours":9.597223681553608,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:57","end":"07:16","startHours":6.9494900910607,"endHours":7.263295553637637,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:57","end":"12:44","startHours":11.95076465088064,"endHours":12.735278307322982,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:53","end":"05:40","startHours":4.89014174289955,"endHours":5.6746553993418924,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:29","end":"06:28","startHours":5.478526985231307,"endHours":6.459169055784236,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:18","end":"15:05","startHours":14.304305620207668,"endHours":15.08881927665001,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:02","end":"18:26","startHours":18.026873902419386,"endHours":18.426873902419384,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:14","end":"18:43","startHours":18.226873902419385,"endHours":18.71719493769585,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:59","end":"19:44","startHours":17.976873902419385,"endHours":19.726873902419385,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:57","end":"00:44","startHours":23.95076465088064,"endHours":24.735278307322982,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:28","end":"07:56","startHours":6.459169055784236,"endHours":7.9301321616136295,"quality":"auspicious"},{"name":"Roga","start":"07:56","end":"09:24","startHours":7.9301321616136295,"endHours":9.401095267443022,"quality":"inauspicious"},{"name":"Udveg","start":"09:24","end":"10:52","startHours":9.401095267443022,"endHours":10.872058373272417,"quality":"inauspicious"},{"name":"Chala","start":"10:52","end":"12:21","startHours":10.872058373272417,"endHours":12.343021479101811,"quality":"neutral"},{"name":"Labha","start":"12:21","end":"13:49","startHours":12.343021479101811,"endHours":13.813984584931204,"quality":"auspicious"},{"name":"Amṛta","start":"13:49","end":"15:17","startHours":13.813984584931204,"endHours":15.284947690760596,"quality":"auspicious"},{"name":"Kāla","start":"15:17","end":"16:45","startHours":15.284947690760596,"endHours":16.75591079658999,"quality":"inauspicious"},{"name":"Śubha","start":"16:45","end":"18:14","startHours":16.75591079658999,"endHours":18.226873902419385,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:14","end":"19:45","startHours":18.226873902419385,"endHours":19.75591079658999,"quality":"auspicious"},{"name":"Kāla","start":"19:45","end":"21:17","startHours":19.75591079658999,"endHours":21.284947690760596,"quality":"inauspicious"},{"name":"Śubha","start":"21:17","end":"22:49","startHours":21.284947690760596,"endHours":22.813984584931205,"quality":"auspicious"},{"name":"Roga","start":"22:49","end":"00:21","startHours":22.813984584931205,"endHours":24.34302147910181,"quality":"inauspicious"},{"name":"Udveg","start":"00:21","end":"01:52","startHours":24.34302147910181,"endHours":25.872058373272417,"quality":"inauspicious"},{"name":"Chala","start":"01:52","end":"03:24","startHours":25.872058373272417,"endHours":27.401095267443026,"quality":"neutral"},{"name":"Labha","start":"03:24","end":"04:56","startHours":27.401095267443026,"endHours":28.93013216161363,"quality":"auspicious"},{"name":"Amṛta","start":"04:56","end":"06:28","startHours":28.93013216161363,"endHours":30.459169055784237,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:28","end":"07:28","startHours":6.459169055784236,"endHours":7.459169055784236,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:28","end":"08:28","startHours":7.459169055784236,"endHours":8.459169055784237,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:28","end":"09:28","startHours":8.459169055784237,"endHours":9.459169055784237,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:28","end":"10:28","startHours":9.459169055784237,"endHours":10.459169055784237,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:28","end":"11:28","startHours":10.459169055784237,"endHours":11.459169055784237,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:28","end":"12:28","startHours":11.459169055784237,"endHours":12.459169055784237,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:28","end":"13:28","startHours":12.459169055784237,"endHours":13.459169055784237,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:28","end":"14:28","startHours":13.459169055784237,"endHours":14.459169055784237,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:28","end":"15:28","startHours":14.459169055784237,"endHours":15.459169055784237,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:28","end":"16:28","startHours":15.459169055784237,"endHours":16.459169055784237,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:28","end":"17:28","startHours":16.459169055784237,"endHours":17.459169055784237,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:28","end":"18:28","startHours":17.459169055784237,"endHours":18.459169055784237,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:28","end":"19:28","startHours":18.459169055784237,"endHours":19.459169055784237,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:28","end":"20:28","startHours":19.459169055784237,"endHours":20.459169055784237,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:28","end":"21:28","startHours":20.459169055784237,"endHours":21.459169055784237,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:28","end":"22:28","startHours":21.459169055784237,"endHours":22.459169055784237,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:28","end":"23:28","startHours":22.459169055784237,"endHours":23.459169055784237,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:28","end":"00:28","startHours":23.459169055784237,"endHours":24.459169055784237,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:28","end":"01:28","startHours":24.459169055784237,"endHours":25.459169055784237,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:28","end":"02:28","startHours":25.459169055784237,"endHours":26.459169055784237,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:28","end":"03:28","startHours":26.459169055784237,"endHours":27.459169055784237,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:28","end":"04:28","startHours":27.459169055784237,"endHours":28.459169055784237,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:28","end":"05:28","startHours":28.459169055784237,"endHours":29.459169055784237,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:28","end":"06:28","startHours":29.459169055784237,"endHours":30.459169055784237,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South","rahuVasa":"North-West","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-20.76457200915998,"eotMinutes":-10.026088746108654,"ayanamsa":24.2727}},"calendars":{"vikram_samvat":2087,"vikram_samvatsara":"Rudhirodgāri","saka_samvat":1952,"saka_samvatsara":"Sādhāraṇa","bengali_samvat":1437,"malayalam_era":1206,"nanakshahi_year":561,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Trayodaśī · Vikram 2087 Rudhirodgāri · Śaka 1952 Sādhāraṇa"},"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":"Dedicated festival walk for Pradoṣa Vrata is not live yet; Guruvāra (Thursday) — 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 January 17, 2030 CE · Colombo, Sri Lanka · Vidhyamitra","description":"January 17, 2030 CE for Colombo, Sri Lanka: Śukla Trayodaśī, sūryodaya 06:28, sūryāsta 18:14.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/colombo/2030-01-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/colombo/2030-01-17","sa":"https://sa.vidhyamitra.com/city/colombo/2030-01-17","hi":"https://hi.vidhyamitra.com/city/colombo/2030-01-17","x-default":"https://vidhyamitra.com/city/colombo/2030-01-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-07-26T09:06:58.246Z","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":"2026-07-26T09:06:58.246Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-07-26T09:06:58.246Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no founder-city is the universal center.","purna_chain":["Goloka/Vraja Rādhā-Krishna","Vaikuṇṭha Lakṣmī-Nārāyaṇa","Mahāviṣṇu/Kāraṇodakaśāyī Viṣṇu","Garbhodakaśāyī Viṣṇu","Brahmā","Kṣīrodaka Paramātmā/Antaryāmī (Kṣīrodakaśāyī Viṣṇu)","Bhūmi","reader's own kṣetra anywhere on Bhūmi","exact reading kṣetra","Divyāṁśa-bhakta","chitta/vāṇī/aṅgulī","keyboard-silicon-pathways","Vidhyāmitra substrate","reader/seer","Krishna"],"antaryami_responsibility_formula":"Kṣīrodakaśāyī Viṣṇu = Paramātmā = Antaryāmī. Jīva desires. Prakṛti executes through guṇas. Paramātmā witnesses, permits, remembers, guides, and sustains. Bhagavān is the ultimate source.","source_anchors":[{"label":"BG 13.23","path":"/bhagavad-gita/13/23","meaning":"upadraṣṭā-anumantā · witness-permitter"},{"label":"BG 15.15","path":"/bhagavad-gita/15/15","meaning":"the Lord seated in every heart as memory, knowledge, and forgetting"},{"label":"BG 18.61","path":"/bhagavad-gita/18/61","meaning":"Īśvara seated in the heart of all beings"}],"nama_seal":"Hare Krishna Hare Krishna · Krishna Krishna Hare Hare · Hare Rama Hare Rama · Rama Rama Hare Hare"}}}