{"id":"vidhyamitra:city-day:colombo:2018-01-30:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/colombo/2018-01-30","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2018-01-30","date_display":"January 30, 2018 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":2018,"month":1,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458148.770833,"kali_year":5119,"ahargana":1869683.2708,"sun":{"sidereal_longitude":285.9419,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":86.1736,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":160.2317,"elapsed_within_tithi_degrees":4.2317},"nakshatra":{"number":7,"name":"Punarvasu","pada":2,"moon_longitude":86.1736,"elapsed_within_degrees":6.1736},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":12.1155},"karana":{"half_tithi_index":26,"name":"Gara"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2018,"month":1,"day":30,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458148.770833,"ahargana":1869683.2708,"kali_year":5119,"ayanamsa_lahiri":24.1056,"grahas":{"sun":{"sidereal_longitude":285.981998,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"moon":{"sidereal_longitude":84.62199799999996,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":2},"retrograde":false,"latitude":-2.1806},"mars":{"sidereal_longitude":217.74889800000005,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":273.287998,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":206.71689800000001,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":290.70039799999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":250.381798,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":115.1828,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":295.1828,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","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":2018,"month":1,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458148.770833,"kali_year":5119,"ahargana":1869683.2708,"sun":{"sidereal_longitude":285.9419,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":86.1736,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":160.2317,"elapsed_within_tithi_degrees":4.2317},"nakshatra":{"number":7,"name":"Punarvasu","pada":2,"moon_longitude":86.1736,"elapsed_within_degrees":6.1736},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":12.1155},"karana":{"half_tithi_index":26,"name":"Gara"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.181,"elongation":160.232},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.181,"opposition_distance":19.768}},"eclipse_window_40days":[{"offset_days":17,"type":"solar","occurs":true,"moon_latitude":-0.855,"elongation":1.98}]},"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":"06:29","sunsetLocal":"18:19","solarNoonLocal":"12:24","dayLengthHours":11.82094992988462,"dayLengthDisplay":"11 Hours 49 Mins 15 Secs","nightLengthDisplay":"12 Hours 10 Mins 45 Secs","moonriseLocal":"16:45","moonsetLocal":"05:12","rahuKala":{"name":"Rāhu Kāla","start":"15:21","end":"16:50","startHours":15.35377658206723,"endHours":16.831395323302807,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:27","end":"10:55","startHours":9.44330161712492,"endHours":10.920920358360497,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:24","end":"13:53","startHours":12.398539099596075,"endHours":13.876157840831652,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:15","end":"09:38","startHours":9.246285784960175,"endHours":9.640317449289665,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:59","end":"07:18","startHours":6.980603715065624,"endHours":7.295829046529214,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:00","end":"12:48","startHours":12.004507435266587,"endHours":12.792570763925562,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:55","end":"05:42","startHours":4.911937477335815,"endHours":5.70000080599479,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:30","end":"06:29","startHours":5.5029849738300465,"endHours":6.488064134653765,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:22","end":"15:09","startHours":14.368697421243512,"endHours":15.156760749902487,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:07","end":"18:31","startHours":18.109014064538385,"endHours":18.509014064538384,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:19","end":"18:48","startHours":18.309014064538385,"endHours":18.801553644950243,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:04","end":"19:49","startHours":18.059014064538385,"endHours":19.809014064538385,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:00","end":"00:48","startHours":24.00450743526659,"endHours":24.79257076392556,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:29","end":"07:58","startHours":6.488064134653765,"endHours":7.9656828758893425,"quality":"inauspicious"},{"name":"Udveg","start":"07:58","end":"09:27","startHours":7.9656828758893425,"endHours":9.44330161712492,"quality":"inauspicious"},{"name":"Chala","start":"09:27","end":"10:55","startHours":9.44330161712492,"endHours":10.920920358360497,"quality":"neutral"},{"name":"Labha","start":"10:55","end":"12:24","startHours":10.920920358360497,"endHours":12.398539099596075,"quality":"auspicious"},{"name":"Amṛta","start":"12:24","end":"13:53","startHours":12.398539099596075,"endHours":13.876157840831652,"quality":"auspicious"},{"name":"Kāla","start":"13:53","end":"15:21","startHours":13.876157840831652,"endHours":15.35377658206723,"quality":"inauspicious"},{"name":"Śubha","start":"15:21","end":"16:50","startHours":15.35377658206723,"endHours":16.831395323302807,"quality":"auspicious"},{"name":"Roga","start":"16:50","end":"18:19","startHours":16.831395323302807,"endHours":18.309014064538385,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:19","end":"19:50","startHours":18.309014064538385,"endHours":19.831395323302807,"quality":"inauspicious"},{"name":"Śubha","start":"19:50","end":"21:21","startHours":19.831395323302807,"endHours":21.35377658206723,"quality":"auspicious"},{"name":"Roga","start":"21:21","end":"22:53","startHours":21.35377658206723,"endHours":22.876157840831652,"quality":"inauspicious"},{"name":"Udveg","start":"22:53","end":"00:24","startHours":22.876157840831652,"endHours":24.398539099596075,"quality":"inauspicious"},{"name":"Chala","start":"00:24","end":"01:55","startHours":24.398539099596075,"endHours":25.920920358360497,"quality":"neutral"},{"name":"Labha","start":"01:55","end":"03:27","startHours":25.920920358360497,"endHours":27.44330161712492,"quality":"auspicious"},{"name":"Amṛta","start":"03:27","end":"04:58","startHours":27.44330161712492,"endHours":28.965682875889343,"quality":"auspicious"},{"name":"Kāla","start":"04:58","end":"06:29","startHours":28.965682875889343,"endHours":30.488064134653765,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:29","end":"07:29","startHours":6.488064134653765,"endHours":7.488064134653765,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:29","end":"08:29","startHours":7.488064134653765,"endHours":8.488064134653765,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:29","end":"09:29","startHours":8.488064134653765,"endHours":9.488064134653765,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:29","end":"10:29","startHours":9.488064134653765,"endHours":10.488064134653765,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:29","end":"11:29","startHours":10.488064134653765,"endHours":11.488064134653765,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:29","end":"12:29","startHours":11.488064134653765,"endHours":12.488064134653765,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:29","end":"13:29","startHours":12.488064134653765,"endHours":13.488064134653765,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:29","end":"14:29","startHours":13.488064134653765,"endHours":14.488064134653765,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:29","end":"15:29","startHours":14.488064134653765,"endHours":15.488064134653765,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:29","end":"16:29","startHours":15.488064134653765,"endHours":16.488064134653765,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:29","end":"17:29","startHours":16.488064134653765,"endHours":17.488064134653765,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:29","end":"18:29","startHours":17.488064134653765,"endHours":18.488064134653765,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:29","end":"19:29","startHours":18.488064134653765,"endHours":19.488064134653765,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:29","end":"20:29","startHours":19.488064134653765,"endHours":20.488064134653765,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:29","end":"21:29","startHours":20.488064134653765,"endHours":21.488064134653765,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:29","end":"22:29","startHours":21.488064134653765,"endHours":22.488064134653765,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:29","end":"23:29","startHours":22.488064134653765,"endHours":23.488064134653765,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:29","end":"00:29","startHours":23.488064134653765,"endHours":24.488064134653765,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:29","end":"01:29","startHours":24.488064134653765,"endHours":25.488064134653765,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:29","end":"02:29","startHours":25.488064134653765,"endHours":26.488064134653765,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:29","end":"03:29","startHours":26.488064134653765,"endHours":27.488064134653765,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:29","end":"04:29","startHours":27.488064134653765,"endHours":28.488064134653765,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:29","end":"05:29","startHours":28.488064134653765,"endHours":29.488064134653765,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:29","end":"06:29","startHours":29.488064134653765,"endHours":30.488064134653765,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"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":"North (Uttara)","chandraVasa":"South","rahuVasa":"North","anandadiYoga":{"name":"Lumba","quality":"Auspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-17.715424711533284,"eotMinutes":-13.357145975764517,"ayanamsa":24.1056}},"calendars":{"vikram_samvat":2075,"vikram_samvatsara":"Virodhakṛt","saka_samvat":1940,"saka_samvatsara":"Vilambī","bengali_samvat":1425,"malayalam_era":1194,"nanakshahi_year":549,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Caturdaśī · Vikram 2075 Virodhakṛt · Śaka 1940 Vilambī"},"festivals":[{"id":"makara-sankranti","name":"Makara Saṅkrānti (Uttarāyaṇa)","name_sanskrit":"मकर सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Capricorn; Uttarāyaṇa (north-going) begins. Bhīṣma's chosen mahaprasthāna time.","vrata":true,"detection":{"sun_rashi":"Makara"},"precedence":1,"sources":["Mahābhārata Bhīṣma-Stuti","Sūrya-Siddhānta"]},{"id":"pongal","name":"Pongal / Thai Pongal","name_sanskrit":"पोङ्गल","tradition":"Regional","associated_deity":"Sūrya Bhagavān","significance":"Tamil 4-day harvest festival; coincides with Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi":"Makara"},"precedence":2}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-1626101-04-03","event":"Bhagavān Rāma's birth at Ayodhyā","chart_id":"rama","shared_marker":"same Punarvasu","url":"/day/-1626101-04-03","relevance":0.5}]},"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 30, 2018 CE · Colombo, Sri Lanka · Vidhyamitra","description":"January 30, 2018 CE for Colombo, Sri Lanka: Śukla Caturdaśī, sūryodaya 06:29, sūryāsta 18:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/colombo/2018-01-30","hreflang_alternates":{"en":"https://vidhyamitra.com/city/colombo/2018-01-30","sa":"https://sa.vidhyamitra.com/city/colombo/2018-01-30","hi":"https://hi.vidhyamitra.com/city/colombo/2018-01-30","x-default":"https://vidhyamitra.com/city/colombo/2018-01-30"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T08:01:35.409Z","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":"2026-05-15T08:01:35.409Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T08:01:35.409Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}