{"id":"vidhyamitra:city-day:colombo:1981-06-27:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/colombo/1981-06-27","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-06-27","date_display":"June 27, 1981 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":1981,"month":6,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444782.770833,"kali_year":5083,"ahargana":1856317.2708,"sun":{"sidereal_longitude":71.4587,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":8.6277,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":297.1689,"elapsed_within_tithi_degrees":9.1689},"nakshatra":{"number":1,"name":"Aśvinī","pada":3,"moon_longitude":8.6277,"elapsed_within_degrees":8.6277},"yoga":{"number":7,"name":"Sukarma","sum_longitude":80.0864},"karana":{"half_tithi_index":49,"name":"Viṣṭi"},"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":1981,"month":6,"day":27,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444782.770833,"ahargana":1856317.2708,"kali_year":5083,"ayanamsa_lahiri":23.5944,"grahas":{"sun":{"sidereal_longitude":71.72197699999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":6.153376999999978,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false,"latitude":-4.4845},"mars":{"sidereal_longitude":52.02367700000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":64.40097700000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":158.41437700000006,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":93.276277,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":159.538277,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":103.3778,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":283.3778,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":1981,"month":6,"day":27,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444782.770833,"kali_year":5083,"ahargana":1856317.2708,"sun":{"sidereal_longitude":71.4587,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":8.6277,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":297.1689,"elapsed_within_tithi_degrees":9.1689},"nakshatra":{"number":1,"name":"Aśvinī","pada":3,"moon_longitude":8.6277,"elapsed_within_degrees":8.6277},"yoga":{"number":7,"name":"Sukarma","sum_longitude":80.0864},"karana":{"half_tithi_index":49,"name":"Viṣṭi"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.485,"elongation":62.831},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.485,"opposition_distance":117.169}},"eclipse_window_40days":[{"offset_days":20,"type":"lunar","occurs":true,"moon_latitude":1.092,"opposition_distance":2.128}]},"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":"18:29","solarNoonLocal":"12:13","dayLengthHours":12.522539022638007,"dayLengthDisplay":"12 Hours 31 Mins 21 Secs","nightLengthDisplay":"11 Hours 28 Mins 39 Secs","moonriseLocal":"01:43","moonsetLocal":"13:59","rahuKala":{"name":"Rāhu Kāla","start":"09:05","end":"10:39","startHours":9.090113640078085,"endHours":10.655431017907837,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:47","end":"15:21","startHours":13.786065773567337,"endHours":15.351383151397089,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:58","end":"07:31","startHours":5.9594788844185835,"endHours":7.524796262248334,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:53","end":"09:18","startHours":8.881404656367451,"endHours":9.29882262378872,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:29","end":"06:49","startHours":6.481251343695167,"endHours":6.815185717632181,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:48","end":"12:38","startHours":11.80333042831632,"endHours":12.638166363158854,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:17","end":"05:07","startHours":4.2898070147335154,"endHours":5.1246429495760495,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:55","end":"05:58","startHours":4.915933965865416,"endHours":5.9594788844185835,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:18","end":"15:09","startHours":14.307838232843922,"endHours":15.142674167686456,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:17","end":"18:41","startHours":18.28201790705659,"endHours":18.68201790705659,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:29","end":"19:00","startHours":18.48201790705659,"endHours":19.003790366333174,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:14","end":"19:59","startHours":18.23201790705659,"endHours":19.98201790705659,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:48","end":"00:38","startHours":23.803330428316322,"endHours":24.638166363158852,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:58","end":"07:31","startHours":5.9594788844185835,"endHours":7.524796262248334,"quality":"inauspicious"},{"name":"Śubha","start":"07:31","end":"09:05","startHours":7.524796262248334,"endHours":9.090113640078085,"quality":"auspicious"},{"name":"Roga","start":"09:05","end":"10:39","startHours":9.090113640078085,"endHours":10.655431017907837,"quality":"inauspicious"},{"name":"Udveg","start":"10:39","end":"12:13","startHours":10.655431017907837,"endHours":12.220748395737587,"quality":"inauspicious"},{"name":"Chala","start":"12:13","end":"13:47","startHours":12.220748395737587,"endHours":13.786065773567337,"quality":"neutral"},{"name":"Labha","start":"13:47","end":"15:21","startHours":13.786065773567337,"endHours":15.351383151397089,"quality":"auspicious"},{"name":"Amṛta","start":"15:21","end":"16:55","startHours":15.351383151397089,"endHours":16.91670052922684,"quality":"auspicious"},{"name":"Kāla","start":"16:55","end":"18:29","startHours":16.91670052922684,"endHours":18.48201790705659,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:29","end":"19:55","startHours":18.48201790705659,"endHours":19.91670052922684,"quality":"auspicious"},{"name":"Amṛta","start":"19:55","end":"21:21","startHours":19.91670052922684,"endHours":21.351383151397087,"quality":"auspicious"},{"name":"Kāla","start":"21:21","end":"22:47","startHours":21.351383151397087,"endHours":22.786065773567337,"quality":"inauspicious"},{"name":"Śubha","start":"22:47","end":"00:13","startHours":22.786065773567337,"endHours":24.220748395737587,"quality":"auspicious"},{"name":"Roga","start":"00:13","end":"01:39","startHours":24.220748395737587,"endHours":25.655431017907837,"quality":"inauspicious"},{"name":"Udveg","start":"01:39","end":"03:05","startHours":25.655431017907837,"endHours":27.090113640078087,"quality":"inauspicious"},{"name":"Chala","start":"03:05","end":"04:31","startHours":27.090113640078087,"endHours":28.524796262248334,"quality":"neutral"},{"name":"Labha","start":"04:31","end":"05:58","startHours":28.524796262248334,"endHours":29.959478884418584,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:58","end":"06:58","startHours":5.9594788844185835,"endHours":6.9594788844185835,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:58","end":"07:58","startHours":6.9594788844185835,"endHours":7.9594788844185835,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:58","end":"08:58","startHours":7.9594788844185835,"endHours":8.959478884418584,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:58","end":"09:58","startHours":8.959478884418584,"endHours":9.959478884418584,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:58","end":"10:58","startHours":9.959478884418584,"endHours":10.959478884418584,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:58","end":"11:58","startHours":10.959478884418584,"endHours":11.959478884418584,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:58","end":"12:58","startHours":11.959478884418584,"endHours":12.959478884418584,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:58","end":"13:58","startHours":12.959478884418584,"endHours":13.959478884418584,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:58","end":"14:58","startHours":13.959478884418584,"endHours":14.959478884418584,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:58","end":"15:58","startHours":14.959478884418584,"endHours":15.959478884418584,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:58","end":"16:58","startHours":15.959478884418584,"endHours":16.959478884418584,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:58","end":"17:58","startHours":16.959478884418584,"endHours":17.959478884418584,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:58","end":"18:58","startHours":17.959478884418584,"endHours":18.959478884418584,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:58","end":"19:58","startHours":18.959478884418584,"endHours":19.959478884418584,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:58","end":"20:58","startHours":19.959478884418584,"endHours":20.959478884418584,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:58","end":"21:58","startHours":20.959478884418584,"endHours":21.959478884418584,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:58","end":"22:58","startHours":21.959478884418584,"endHours":22.959478884418584,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:58","end":"23:58","startHours":22.959478884418584,"endHours":23.959478884418584,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:58","end":"00:58","startHours":23.959478884418584,"endHours":24.959478884418584,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:58","end":"01:58","startHours":24.959478884418584,"endHours":25.959478884418584,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:58","end":"02:58","startHours":25.959478884418584,"endHours":26.959478884418584,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:58","end":"03:58","startHours":26.959478884418584,"endHours":27.959478884418584,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:58","end":"04:58","startHours":27.959478884418584,"endHours":28.959478884418584,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:58","end":"05:58","startHours":28.959478884418584,"endHours":29.959478884418584,"planetary_lord":"Mercury"}],"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"East","anandadiYoga":{"name":"Rākṣasa","quality":"Inauspicious"},"tropicalRitu":"Grīṣma (Summer) (tropical)","vedicRitu":"Grīṣma (Summer)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":23.32969873385905,"eotMinutes":-2.6897037442551217,"ayanamsa":23.5944}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Āṣāḍha","lunar_month_paksha_full":"Āṣāḍha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āṣāḍha","lunar_month_amanta":"Jyeṣṭha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mithuna (Āni)","ritu":"Grīṣma (Summer)","display_summary":"Āṣāḍha Kṛṣṇa Daśamī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"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":[{"historical_date":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","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 June 27, 1981 CE · Colombo, Sri Lanka · Vidhyamitra","description":"June 27, 1981 CE for Colombo, Sri Lanka: Kṛṣṇa Daśamī, sūryodaya 05:58, sūryāsta 18:29.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/colombo/1981-06-27","hreflang_alternates":{"en":"https://vidhyamitra.com/city/colombo/1981-06-27","sa":"https://sa.vidhyamitra.com/city/colombo/1981-06-27","hi":"https://hi.vidhyamitra.com/city/colombo/1981-06-27","x-default":"https://vidhyamitra.com/city/colombo/1981-06-27"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T01:46:59.631Z","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":"2026-06-02T01:46:59.631Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T01:46:59.631Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}