{"id":"vidhyamitra:city-day:colombo:2029-01-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/colombo/2029-01-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2029-01-04","date_display":"January 4, 2029 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":2029,"month":1,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462140.770833,"kali_year":5130,"ahargana":1873675.2708,"sun":{"sidereal_longitude":259.4209,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":121.2562,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":221.8353,"elapsed_within_tithi_degrees":5.8353},"nakshatra":{"number":10,"name":"Maghā","pada":1,"moon_longitude":121.2562,"elapsed_within_degrees":1.2562},"yoga":{"number":2,"name":"Prīti","sum_longitude":20.6771},"karana":{"half_tithi_index":36,"name":"Bava"},"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":2029,"month":1,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2462140.770833,"ahargana":1873675.2708,"kali_year":5130,"ayanamsa_lahiri":24.2582,"grahas":{"sun":{"sidereal_longitude":259.696274,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":123.08547399999998,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false,"latitude":-2.7432},"mars":{"sidereal_longitude":160.67437399999994,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":278.09727399999997,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":180.98817399999996,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":240.23467400000004,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":10.128273999999976,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":263.6674,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":83.6674,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"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":2029,"month":1,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462140.770833,"kali_year":5130,"ahargana":1873675.2708,"sun":{"sidereal_longitude":259.4209,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":121.2562,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":221.8353,"elapsed_within_tithi_degrees":5.8353},"nakshatra":{"number":10,"name":"Maghā","pada":1,"moon_longitude":121.2562,"elapsed_within_degrees":1.2562},"yoga":{"number":2,"name":"Prīti","sum_longitude":20.6771},"karana":{"half_tithi_index":36,"name":"Bava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.743,"elongation":138.165},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.743,"opposition_distance":41.835}},"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":"06:24","sunsetLocal":"18:08","solarNoonLocal":"12:16","dayLengthHours":11.732870080994537,"dayLengthDisplay":"11 Hours 43 Mins 58 Secs","nightLengthDisplay":"12 Hours 16 Mins 02 Secs","moonriseLocal":"21:01","moonsetLocal":"09:18","rahuKala":{"name":"Rāhu Kāla","start":"13:44","end":"15:12","startHours":13.72626054121342,"endHours":15.192869301337739,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:24","end":"07:52","startHours":6.393216740591836,"endHours":7.859825500716153,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:20","end":"10:48","startHours":9.32643426084047,"endHours":10.793043020964788,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:08","end":"09:31","startHours":9.130886426157229,"endHours":9.521982095523713,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:53","end":"07:12","startHours":6.882086327299941,"endHours":7.194962862793129,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:39","startHours":11.86855611172262,"endHours":12.650747450455588,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:50","end":"05:37","startHours":4.828834063125897,"endHours":5.611025401858867,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:25","end":"06:24","startHours":5.415477567175624,"endHours":6.393216740591836,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:13","end":"15:00","startHours":14.215130127921528,"endHours":14.997321466654498,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:56","end":"18:20","startHours":17.926086821586374,"endHours":18.326086821586372,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:08","end":"18:37","startHours":18.126086821586373,"endHours":18.61495640829448,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:53","end":"19:38","startHours":17.876086821586373,"endHours":19.626086821586373,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:39","startHours":23.86855611172262,"endHours":24.65074745045559,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:24","end":"07:52","startHours":6.393216740591836,"endHours":7.859825500716153,"quality":"auspicious"},{"name":"Roga","start":"07:52","end":"09:20","startHours":7.859825500716153,"endHours":9.32643426084047,"quality":"inauspicious"},{"name":"Udveg","start":"09:20","end":"10:48","startHours":9.32643426084047,"endHours":10.793043020964788,"quality":"inauspicious"},{"name":"Chala","start":"10:48","end":"12:16","startHours":10.793043020964788,"endHours":12.259651781089104,"quality":"neutral"},{"name":"Labha","start":"12:16","end":"13:44","startHours":12.259651781089104,"endHours":13.72626054121342,"quality":"auspicious"},{"name":"Amṛta","start":"13:44","end":"15:12","startHours":13.72626054121342,"endHours":15.192869301337739,"quality":"auspicious"},{"name":"Kāla","start":"15:12","end":"16:40","startHours":15.192869301337739,"endHours":16.659478061462057,"quality":"inauspicious"},{"name":"Śubha","start":"16:40","end":"18:08","startHours":16.659478061462057,"endHours":18.126086821586373,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:08","end":"19:40","startHours":18.126086821586373,"endHours":19.659478061462057,"quality":"auspicious"},{"name":"Kāla","start":"19:40","end":"21:12","startHours":19.659478061462057,"endHours":21.192869301337737,"quality":"inauspicious"},{"name":"Śubha","start":"21:12","end":"22:44","startHours":21.192869301337737,"endHours":22.72626054121342,"quality":"auspicious"},{"name":"Roga","start":"22:44","end":"00:16","startHours":22.72626054121342,"endHours":24.259651781089104,"quality":"inauspicious"},{"name":"Udveg","start":"00:16","end":"01:48","startHours":24.259651781089104,"endHours":25.793043020964788,"quality":"inauspicious"},{"name":"Chala","start":"01:48","end":"03:20","startHours":25.793043020964788,"endHours":27.326434260840472,"quality":"neutral"},{"name":"Labha","start":"03:20","end":"04:52","startHours":27.326434260840472,"endHours":28.859825500716152,"quality":"auspicious"},{"name":"Amṛta","start":"04:52","end":"06:24","startHours":28.859825500716152,"endHours":30.393216740591836,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:24","end":"07:24","startHours":6.393216740591836,"endHours":7.393216740591836,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:24","end":"08:24","startHours":7.393216740591836,"endHours":8.393216740591836,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:24","end":"09:24","startHours":8.393216740591836,"endHours":9.393216740591836,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:24","end":"10:24","startHours":9.393216740591836,"endHours":10.393216740591836,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:24","end":"11:24","startHours":10.393216740591836,"endHours":11.393216740591836,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:24","end":"12:24","startHours":11.393216740591836,"endHours":12.393216740591836,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:24","end":"13:24","startHours":12.393216740591836,"endHours":13.393216740591836,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:24","end":"14:24","startHours":13.393216740591836,"endHours":14.393216740591836,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:24","end":"15:24","startHours":14.393216740591836,"endHours":15.393216740591836,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:24","end":"16:24","startHours":15.393216740591836,"endHours":16.393216740591836,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:24","end":"17:24","startHours":16.393216740591836,"endHours":17.393216740591836,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:24","end":"18:24","startHours":17.393216740591836,"endHours":18.393216740591836,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:24","end":"19:24","startHours":18.393216740591836,"endHours":19.393216740591836,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:24","end":"20:24","startHours":19.393216740591836,"endHours":20.393216740591836,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:24","end":"21:24","startHours":20.393216740591836,"endHours":21.393216740591836,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:24","end":"22:24","startHours":21.393216740591836,"endHours":22.393216740591836,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:24","end":"23:24","startHours":22.393216740591836,"endHours":23.393216740591836,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:24","end":"00:24","startHours":23.393216740591836,"endHours":24.393216740591836,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:24","end":"01:24","startHours":24.393216740591836,"endHours":25.393216740591836,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:24","end":"02:24","startHours":25.393216740591836,"endHours":26.393216740591836,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:24","end":"03:24","startHours":26.393216740591836,"endHours":27.393216740591836,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:24","end":"04:24","startHours":27.393216740591836,"endHours":28.393216740591836,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:24","end":"05:24","startHours":28.393216740591836,"endHours":29.393216740591836,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:24","end":"06:24","startHours":29.393216740591836,"endHours":30.393216740591836,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","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":"Cara","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-22.705490192724366,"eotMinutes":-5.02390686534617,"ayanamsa":24.2582}},"calendars":{"vikram_samvat":2086,"vikram_samvatsara":"Dundubhi","saka_samvat":1951,"saka_samvatsara":"Saumya","bengali_samvat":1436,"malayalam_era":1205,"nanakshahi_year":560,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Caturthī · Vikram 2086 Dundubhi · Śaka 1951 Saumya"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti. (Approximated as 13/14 January annually; correct via Sun in Dhanu/Makara cusp.)","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":4},{"id":"dhanu-sankranti","name":"Dhanu Saṅkrānti","name_sanskrit":"धनु सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Sagittarius; Dhanu-māsa (Khara-māsa).","vrata":false,"detection":{"sun_rashi":"Dhanu"},"precedence":5},{"id":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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":"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 4, 2029 CE · Colombo, Sri Lanka · Vidhyamitra","description":"January 4, 2029 CE for Colombo, Sri Lanka: Kṛṣṇa Caturthī, sūryodaya 06:24, sūryāsta 18:08.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/colombo/2029-01-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/colombo/2029-01-04","sa":"https://sa.vidhyamitra.com/city/colombo/2029-01-04","hi":"https://hi.vidhyamitra.com/city/colombo/2029-01-04","x-default":"https://vidhyamitra.com/city/colombo/2029-01-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T22:11:10.918Z","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":"2026-05-14T22:11:10.918Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T22:11:10.918Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}