{"id":"vidhyamitra:city-day:dwarka:1981-01-16:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/dwarka/1981-01-16","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-01-16","date_display":"January 16, 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":1,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444620.770833,"kali_year":5082,"ahargana":1856155.2708,"sun":{"sidereal_longitude":272.183,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":37.9491,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":125.7661,"elapsed_within_tithi_degrees":5.7661},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4,"moon_longitude":37.9491,"elapsed_within_degrees":11.2824},"yoga":{"number":24,"name":"Śukla","sum_longitude":310.1321},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"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":1,"day":16,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444620.770833,"ahargana":1856155.2708,"kali_year":5082,"ayanamsa_lahiri":23.5882,"grahas":{"sun":{"sidereal_longitude":272.24006699999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":36.80296699999997,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false,"latitude":-4.3256},"mars":{"sidereal_longitude":289.40186700000004,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":282.42036699999994,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":166.727167,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"venus":{"sidereal_longitude":252.63686700000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":165.95556699999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":111.9613,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":291.9613,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":1981,"month":1,"day":16,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444620.770833,"kali_year":5082,"ahargana":1856155.2708,"sun":{"sidereal_longitude":272.183,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":37.9491,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":125.7661,"elapsed_within_tithi_degrees":5.7661},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4,"moon_longitude":37.9491,"elapsed_within_degrees":11.2824},"yoga":{"number":24,"name":"Śukla","sum_longitude":310.1321},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.326,"elongation":125.766},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.326,"opposition_distance":54.234}},"eclipse_window_40days":[{"offset_days":4,"type":"lunar","occurs":true,"moon_latitude":-1.332,"opposition_distance":1.776},{"offset_days":20,"type":"solar","occurs":true,"moon_latitude":-0.15,"elongation":0.162}]},"city":{"slug":"dwarka","name":"Dvārakā","lat":22.2393,"lon":68.9686,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"dwarka","name":"Dvārakā","lat":22.2393,"lon":68.9686,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tirtha"},"sunriseLocal":"07:36","sunsetLocal":"18:32","solarNoonLocal":"13:04","dayLengthHours":10.92731413979718,"dayLengthDisplay":"10 Hours 55 Mins 38 Secs","nightLengthDisplay":"13 Hours 04 Mins 22 Secs","moonriseLocal":"14:45","moonsetLocal":"03:59","rahuKala":{"name":"Rāhu Kāla","start":"11:42","end":"13:04","startHours":11.697727424888317,"endHours":13.063641692362964,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:48","end":"17:10","startHours":15.795470227312258,"endHours":17.161384494786905,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:58","end":"10:20","startHours":8.965898889939021,"endHours":10.331813157413668,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"10:09","end":"10:31","startHours":10.149691255083715,"endHours":10.513935059743622,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"08:03","end":"08:21","startHours":8.055289378289256,"endHours":8.34668442201718,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:42","end":"13:26","startHours":12.699397887703055,"endHours":13.427885497022869,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:09","end":"06:52","startHours":6.14300940382475,"endHours":6.871497013144562,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:41","end":"07:36","startHours":6.689375110814608,"endHours":7.5999846224643735,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:53","end":"15:37","startHours":14.884860715662493,"endHours":15.613348324982304,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:20","end":"18:44","startHours":18.327298762261552,"endHours":18.72729876226155,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:32","end":"18:59","startHours":18.52729876226155,"endHours":18.982603518086435,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:17","end":"20:02","startHours":18.27729876226155,"endHours":20.02729876226155,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:42","end":"01:26","startHours":24.699397887703057,"endHours":25.42788549702287,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"07:36","end":"08:58","startHours":7.5999846224643735,"endHours":8.965898889939021,"quality":"neutral"},{"name":"Labha","start":"08:58","end":"10:20","startHours":8.965898889939021,"endHours":10.331813157413668,"quality":"auspicious"},{"name":"Amṛta","start":"10:20","end":"11:42","startHours":10.331813157413668,"endHours":11.697727424888317,"quality":"auspicious"},{"name":"Kāla","start":"11:42","end":"13:04","startHours":11.697727424888317,"endHours":13.063641692362964,"quality":"inauspicious"},{"name":"Śubha","start":"13:04","end":"14:26","startHours":13.063641692362964,"endHours":14.42955595983761,"quality":"auspicious"},{"name":"Roga","start":"14:26","end":"15:48","startHours":14.42955595983761,"endHours":15.795470227312258,"quality":"inauspicious"},{"name":"Udveg","start":"15:48","end":"17:10","startHours":15.795470227312258,"endHours":17.161384494786905,"quality":"inauspicious"},{"name":"Chala","start":"17:10","end":"18:32","startHours":17.161384494786905,"endHours":18.52729876226155,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:32","end":"20:10","startHours":18.52729876226155,"endHours":20.161384494786905,"quality":"inauspicious"},{"name":"Udveg","start":"20:10","end":"21:48","startHours":20.161384494786905,"endHours":21.795470227312258,"quality":"inauspicious"},{"name":"Chala","start":"21:48","end":"23:26","startHours":21.795470227312258,"endHours":23.429555959837607,"quality":"neutral"},{"name":"Labha","start":"23:26","end":"01:04","startHours":23.429555959837607,"endHours":25.063641692362964,"quality":"auspicious"},{"name":"Amṛta","start":"01:04","end":"02:42","startHours":25.063641692362964,"endHours":26.697727424888313,"quality":"auspicious"},{"name":"Kāla","start":"02:42","end":"04:20","startHours":26.697727424888313,"endHours":28.331813157413666,"quality":"inauspicious"},{"name":"Śubha","start":"04:20","end":"05:58","startHours":28.331813157413666,"endHours":29.96589888993902,"quality":"auspicious"},{"name":"Roga","start":"05:58","end":"07:36","startHours":29.96589888993902,"endHours":31.599984622464373,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:36","end":"08:36","startHours":7.5999846224643735,"endHours":8.599984622464373,"planetary_lord":"Venus"},{"name":"Hora 2","start":"08:36","end":"09:36","startHours":8.599984622464373,"endHours":9.599984622464373,"planetary_lord":"Sun"},{"name":"Hora 3","start":"09:36","end":"10:36","startHours":9.599984622464373,"endHours":10.599984622464373,"planetary_lord":"Mars"},{"name":"Hora 4","start":"10:36","end":"11:36","startHours":10.599984622464373,"endHours":11.599984622464373,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"11:36","end":"12:36","startHours":11.599984622464373,"endHours":12.599984622464373,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"12:36","end":"13:36","startHours":12.599984622464373,"endHours":13.599984622464373,"planetary_lord":"Moon"},{"name":"Hora 7","start":"13:36","end":"14:36","startHours":13.599984622464373,"endHours":14.599984622464373,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"14:36","end":"15:36","startHours":14.599984622464373,"endHours":15.599984622464373,"planetary_lord":"Venus"},{"name":"Hora 9","start":"15:36","end":"16:36","startHours":15.599984622464373,"endHours":16.599984622464373,"planetary_lord":"Sun"},{"name":"Hora 10","start":"16:36","end":"17:36","startHours":16.599984622464373,"endHours":17.599984622464373,"planetary_lord":"Mars"},{"name":"Hora 11","start":"17:36","end":"18:36","startHours":17.599984622464373,"endHours":18.599984622464373,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"18:36","end":"19:36","startHours":18.599984622464373,"endHours":19.599984622464373,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"19:36","end":"20:36","startHours":19.599984622464373,"endHours":20.599984622464373,"planetary_lord":"Moon"},{"name":"Hora 14","start":"20:36","end":"21:36","startHours":20.599984622464373,"endHours":21.599984622464373,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"21:36","end":"22:36","startHours":21.599984622464373,"endHours":22.599984622464373,"planetary_lord":"Venus"},{"name":"Hora 16","start":"22:36","end":"23:36","startHours":22.599984622464373,"endHours":23.599984622464373,"planetary_lord":"Sun"},{"name":"Hora 17","start":"23:36","end":"00:36","startHours":23.599984622464373,"endHours":24.599984622464373,"planetary_lord":"Mars"},{"name":"Hora 18","start":"00:36","end":"01:36","startHours":24.599984622464373,"endHours":25.599984622464373,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"01:36","end":"02:36","startHours":25.599984622464373,"endHours":26.599984622464373,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"02:36","end":"03:36","startHours":26.599984622464373,"endHours":27.599984622464373,"planetary_lord":"Moon"},{"name":"Hora 21","start":"03:36","end":"04:36","startHours":27.599984622464373,"endHours":28.599984622464373,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"04:36","end":"05:36","startHours":28.599984622464373,"endHours":29.599984622464373,"planetary_lord":"Venus"},{"name":"Hora 23","start":"05:36","end":"06:36","startHours":29.599984622464373,"endHours":30.599984622464373,"planetary_lord":"Sun"},{"name":"Hora 24","start":"06:36","end":"07:36","startHours":30.599984622464373,"endHours":31.599984622464373,"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","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"South-East","anandadiYoga":{"name":"Gada","quality":"Inauspicious"},"drikRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-20.977453944900105,"eotMinutes":-9.692901541777706,"ayanamsa":23.5882}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Ekādaśī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"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},{"id":"jaya-ekadashi","name":"Jayā Ekādaśī","name_sanskrit":"जया एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Removes pretatva (ghost-state); grants victory.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Māgha"},"precedence":4},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5}],"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 Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","url":"/day/-3137-12-25","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"dwarka"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 16, 1981 CE · Dvārakā · Vidhyamitra","description":"January 16, 1981 CE for Dvārakā: Śukla Ekādaśī, sūryodaya 07:36, sūryāsta 18:32.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/dwarka/1981-01-16","hreflang_alternates":{"en":"https://vidhyamitra.com/city/dwarka/1981-01-16","sa":"https://sa.vidhyamitra.com/city/dwarka/1981-01-16","hi":"https://hi.vidhyamitra.com/city/dwarka/1981-01-16","x-default":"https://vidhyamitra.com/city/dwarka/1981-01-16"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T12:33:36.118Z","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":"2026-05-18T12:33:36.118Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T12:33:36.118Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}