{"id":"vidhyamitra:city-day:seattle:1981-03-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/seattle/1981-03-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-03-20","date_display":"March 20, 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":3,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444683.770833,"kali_year":5082,"ahargana":1856218.2708,"sun":{"sidereal_longitude":335.9815,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":150.4994,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":174.5179,"elapsed_within_tithi_degrees":6.5179},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2,"moon_longitude":150.4994,"elapsed_within_degrees":3.8327},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":126.481},"karana":{"half_tithi_index":29,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":3,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444683.770833,"ahargana":1856218.2708,"kali_year":5082,"ayanamsa_lahiri":23.5906,"grahas":{"sun":{"sidereal_longitude":335.75955999999996,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":149.00865999999996,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false,"latitude":3.0021},"mars":{"sidereal_longitude":338.95536,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":308.80016,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":162.78056000000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":true},"venus":{"sidereal_longitude":331.39516000000003,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":163.18985999999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":108.6233,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":288.6233,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"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":3,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444683.770833,"kali_year":5082,"ahargana":1856218.2708,"sun":{"sidereal_longitude":335.9815,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":150.4994,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":174.5179,"elapsed_within_tithi_degrees":6.5179},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2,"moon_longitude":150.4994,"elapsed_within_degrees":3.8327},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":126.481},"karana":{"half_tithi_index":29,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.002,"elongation":174.518},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.002,"opposition_distance":5.482}},"eclipse_window_40days":[]},"city":{"slug":"seattle","name":"Seattle, USA","lat":47.6062,"lon":-122.3321,"tz_offset_hours":-8,"country":"US","tier":"diaspora"},"tier2":{"city":{"slug":"seattle","name":"Seattle, USA","lat":47.6062,"lon":-122.3321,"tz_offset_hours":-8,"country":"US","tier":"diaspora"},"sunriseLocal":"06:14","sunsetLocal":"18:21","solarNoonLocal":"12:17","dayLengthHours":12.126986572071978,"dayLengthDisplay":"12 Hours 07 Mins 37 Secs","nightLengthDisplay":"11 Hours 52 Mins 23 Secs","moonriseLocal":"17:34","moonsetLocal":"06:07","rahuKala":{"name":"Rāhu Kāla","start":"10:47","end":"12:17","startHours":10.775483099535583,"endHours":12.29135642104458,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:19","end":"16:50","startHours":15.323103064062575,"endHours":16.83897638557157,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:45","end":"09:16","startHours":7.743736456517588,"endHours":9.259609778026586,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:03","end":"09:28","startHours":9.05749333515872,"endHours":9.461726220894452,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:44","end":"07:03","startHours":6.733154242178257,"endHours":7.056540550766843,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:42","startHours":11.887123535308847,"endHours":12.695589306780311,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:37","end":"05:25","startHours":4.610931592065661,"endHours":5.419397363537126,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:13","end":"06:14","startHours":5.21728092066926,"endHours":6.227863135008591,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:19","end":"15:07","startHours":14.312520849723242,"endHours":15.120986621194707,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:09","end":"18:33","startHours":18.15484970708057,"endHours":18.554849707080567,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:21","end":"18:52","startHours":18.354849707080568,"endHours":18.860140814250233,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:06","end":"19:51","startHours":18.104849707080568,"endHours":19.854849707080568,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:42","startHours":23.887123535308845,"endHours":24.695589306780313,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:14","end":"07:45","startHours":6.227863135008591,"endHours":7.743736456517588,"quality":"neutral"},{"name":"Labha","start":"07:45","end":"09:16","startHours":7.743736456517588,"endHours":9.259609778026586,"quality":"auspicious"},{"name":"Amṛta","start":"09:16","end":"10:47","startHours":9.259609778026586,"endHours":10.775483099535583,"quality":"auspicious"},{"name":"Kāla","start":"10:47","end":"12:17","startHours":10.775483099535583,"endHours":12.29135642104458,"quality":"inauspicious"},{"name":"Śubha","start":"12:17","end":"13:48","startHours":12.29135642104458,"endHours":13.807229742553577,"quality":"auspicious"},{"name":"Roga","start":"13:48","end":"15:19","startHours":13.807229742553577,"endHours":15.323103064062575,"quality":"inauspicious"},{"name":"Udveg","start":"15:19","end":"16:50","startHours":15.323103064062575,"endHours":16.83897638557157,"quality":"inauspicious"},{"name":"Chala","start":"16:50","end":"18:21","startHours":16.83897638557157,"endHours":18.354849707080568,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:21","end":"19:50","startHours":18.354849707080568,"endHours":19.83897638557157,"quality":"inauspicious"},{"name":"Udveg","start":"19:50","end":"21:19","startHours":19.83897638557157,"endHours":21.323103064062572,"quality":"inauspicious"},{"name":"Chala","start":"21:19","end":"22:48","startHours":21.323103064062572,"endHours":22.807229742553577,"quality":"neutral"},{"name":"Labha","start":"22:48","end":"00:17","startHours":22.807229742553577,"endHours":24.29135642104458,"quality":"auspicious"},{"name":"Amṛta","start":"00:17","end":"01:47","startHours":24.29135642104458,"endHours":25.77548309953558,"quality":"auspicious"},{"name":"Kāla","start":"01:47","end":"03:16","startHours":25.77548309953558,"endHours":27.259609778026586,"quality":"inauspicious"},{"name":"Śubha","start":"03:16","end":"04:45","startHours":27.259609778026586,"endHours":28.74373645651759,"quality":"auspicious"},{"name":"Roga","start":"04:45","end":"06:14","startHours":28.74373645651759,"endHours":30.22786313500859,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:14","end":"07:14","startHours":6.227863135008591,"endHours":7.227863135008591,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:14","end":"08:14","startHours":7.227863135008591,"endHours":8.22786313500859,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:14","end":"09:14","startHours":8.22786313500859,"endHours":9.22786313500859,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:14","end":"10:14","startHours":9.22786313500859,"endHours":10.22786313500859,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:14","end":"11:14","startHours":10.22786313500859,"endHours":11.22786313500859,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:14","end":"12:14","startHours":11.22786313500859,"endHours":12.22786313500859,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:14","end":"13:14","startHours":12.22786313500859,"endHours":13.22786313500859,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:14","end":"14:14","startHours":13.22786313500859,"endHours":14.22786313500859,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:14","end":"15:14","startHours":14.22786313500859,"endHours":15.22786313500859,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:14","end":"16:14","startHours":15.22786313500859,"endHours":16.22786313500859,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:14","end":"17:14","startHours":16.22786313500859,"endHours":17.22786313500859,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:14","end":"18:14","startHours":17.22786313500859,"endHours":18.22786313500859,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:14","end":"19:14","startHours":18.22786313500859,"endHours":19.22786313500859,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:14","end":"20:14","startHours":19.22786313500859,"endHours":20.22786313500859,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:14","end":"21:14","startHours":20.22786313500859,"endHours":21.22786313500859,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:14","end":"22:14","startHours":21.22786313500859,"endHours":22.22786313500859,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:14","end":"23:14","startHours":22.22786313500859,"endHours":23.22786313500859,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:14","end":"00:14","startHours":23.22786313500859,"endHours":24.22786313500859,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:14","end":"01:14","startHours":24.22786313500859,"endHours":25.22786313500859,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:14","end":"02:14","startHours":25.22786313500859,"endHours":26.22786313500859,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:14","end":"03:14","startHours":26.22786313500859,"endHours":27.22786313500859,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:14","end":"04:14","startHours":27.22786313500859,"endHours":28.22786313500859,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:14","end":"05:14","startHours":28.22786313500859,"endHours":29.22786313500859,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:14","end":"06:14","startHours":29.22786313500859,"endHours":30.22786313500859,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","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":"West (Paścim)","chandraVasa":"West","rahuVasa":"South-East","anandadiYoga":{"name":"Prajāpati","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-0.25845779781279743,"eotMinutes":-8.152985262674756,"ayanamsa":23.5906}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","lunar_month_amanta":"Phālguna","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Śukla Pūrṇimā · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"holi","name":"Holi (Phālguna Pūrṇimā)","name_sanskrit":"होली","tradition":"Pan-Hindu","significance":"Festival of colors; Holikā-dahana eve.","vrata":false,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Phālguna"},"precedence":1},{"id":"lakshmi-jayanti","name":"Lakṣmī Jayantī","name_sanskrit":"लक्ष्मी जयन्ती","tradition":"Vaishnava","associated_deity":"Mahā-Lakṣmī","significance":"Birth of Mahā-Lakṣmī from samudra-mathana (Phālguna Pūrṇimā tradition).","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Phālguna"},"precedence":2,"sources":["Bhāgavata 8.8"]}],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Śukla Pūrṇimā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Śukla Pūrṇimā","url":"/day/-0562-04-11","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"seattle"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga March 20, 1981 CE · Seattle, USA · Vidhyamitra","description":"March 20, 1981 CE for Seattle, USA: Śukla Pūrṇimā, sūryodaya 06:14, sūryāsta 18:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/seattle/1981-03-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/seattle/1981-03-20","sa":"https://sa.vidhyamitra.com/city/seattle/1981-03-20","hi":"https://hi.vidhyamitra.com/city/seattle/1981-03-20","x-default":"https://vidhyamitra.com/city/seattle/1981-03-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T01:43:51.568Z","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":"2026-06-01T01:43:51.568Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T01:43:51.568Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}