{"id":"vidhyamitra:city-day:ranchi:1981-03-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ranchi/1981-03-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-03-21","date_display":"March 21, 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":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444684.770833,"kali_year":5082,"ahargana":1856219.2708,"sun":{"sidereal_longitude":336.9746,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":163.3401,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":186.3655,"elapsed_within_tithi_degrees":6.3655},"nakshatra":{"number":13,"name":"Hasta","pada":2,"moon_longitude":163.3401,"elapsed_within_degrees":3.3401},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":140.3147},"karana":{"half_tithi_index":31,"name":"Kaulava"},"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":3,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444684.770833,"ahargana":1856219.2708,"kali_year":5082,"ayanamsa_lahiri":23.5906,"grahas":{"sun":{"sidereal_longitude":336.752822,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":161.21342200000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false,"latitude":3.6745},"mars":{"sidereal_longitude":339.731022,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":309.976622,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":162.653822,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":true},"venus":{"sidereal_longitude":332.63942199999997,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":163.112622,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":108.5703,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":288.5703,"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":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444684.770833,"kali_year":5082,"ahargana":1856219.2708,"sun":{"sidereal_longitude":336.9746,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":163.3401,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":186.3655,"elapsed_within_tithi_degrees":6.3655},"nakshatra":{"number":13,"name":"Hasta","pada":2,"moon_longitude":163.3401,"elapsed_within_degrees":3.3401},"yoga":{"number":11,"name":"Vṛddhi","sum_longitude":140.3147},"karana":{"half_tithi_index":31,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.675,"elongation":173.635},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.675,"opposition_distance":6.365}},"eclipse_window_40days":[]},"city":{"slug":"ranchi","name":"Ranchi, Jharkhand","lat":23.3441,"lon":85.3096,"tz_offset_hours":5.5,"state":"Jharkhand","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"ranchi","name":"Ranchi, Jharkhand","lat":23.3441,"lon":85.3096,"tz_offset_hours":5.5,"state":"Jharkhand","country":"IN","tier":"tier-1"},"sunriseLocal":"05:53","sunsetLocal":"18:00","solarNoonLocal":"11:57","dayLengthHours":12.128831104568205,"dayLengthDisplay":"12 Hours 07 Mins 44 Secs","nightLengthDisplay":"11 Hours 52 Mins 16 Secs","moonriseLocal":"18:15","moonsetLocal":"06:14","rahuKala":{"name":"Rāhu Kāla","start":"08:55","end":"10:26","startHours":8.911198984220073,"endHours":10.427302872291097,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:28","end":"14:59","startHours":13.459510648433149,"endHours":14.975614536504175,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:53","end":"07:24","startHours":5.878991208078022,"endHours":7.395095096149047,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:43","end":"09:07","startHours":8.709051799143936,"endHours":9.113346169296209,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:23","end":"06:42","startHours":6.384359170768364,"endHours":6.707794666890183,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:32","end":"12:21","startHours":11.53911239020985,"endHours":12.347701130514396,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:16","end":"05:04","startHours":4.261813727468928,"endHours":5.070402467773475,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:52","end":"05:53","startHours":4.868255282697338,"endHours":5.878991208078022,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:58","end":"14:46","startHours":13.964878611123492,"endHours":14.773467351428039,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:48","end":"18:12","startHours":17.807822312646227,"endHours":18.207822312646226,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:00","end":"18:31","startHours":18.007822312646226,"endHours":18.51319027533657,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:45","end":"19:30","startHours":17.757822312646226,"endHours":19.507822312646226,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:32","end":"00:21","startHours":23.539112390209848,"endHours":24.347701130514398,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:53","end":"07:24","startHours":5.878991208078022,"endHours":7.395095096149047,"quality":"inauspicious"},{"name":"Śubha","start":"07:24","end":"08:55","startHours":7.395095096149047,"endHours":8.911198984220073,"quality":"auspicious"},{"name":"Roga","start":"08:55","end":"10:26","startHours":8.911198984220073,"endHours":10.427302872291097,"quality":"inauspicious"},{"name":"Udveg","start":"10:26","end":"11:57","startHours":10.427302872291097,"endHours":11.943406760362123,"quality":"inauspicious"},{"name":"Chala","start":"11:57","end":"13:28","startHours":11.943406760362123,"endHours":13.459510648433149,"quality":"neutral"},{"name":"Labha","start":"13:28","end":"14:59","startHours":13.459510648433149,"endHours":14.975614536504175,"quality":"auspicious"},{"name":"Amṛta","start":"14:59","end":"16:30","startHours":14.975614536504175,"endHours":16.4917184245752,"quality":"auspicious"},{"name":"Kāla","start":"16:30","end":"18:00","startHours":16.4917184245752,"endHours":18.007822312646226,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:00","end":"19:30","startHours":18.007822312646226,"endHours":19.4917184245752,"quality":"auspicious"},{"name":"Amṛta","start":"19:30","end":"20:59","startHours":19.4917184245752,"endHours":20.975614536504175,"quality":"auspicious"},{"name":"Kāla","start":"20:59","end":"22:28","startHours":20.975614536504175,"endHours":22.45951064843315,"quality":"inauspicious"},{"name":"Śubha","start":"22:28","end":"23:57","startHours":22.45951064843315,"endHours":23.943406760362123,"quality":"auspicious"},{"name":"Roga","start":"23:57","end":"01:26","startHours":23.943406760362123,"endHours":25.427302872291097,"quality":"inauspicious"},{"name":"Udveg","start":"01:26","end":"02:55","startHours":25.427302872291097,"endHours":26.91119898422007,"quality":"inauspicious"},{"name":"Chala","start":"02:55","end":"04:24","startHours":26.91119898422007,"endHours":28.39509509614905,"quality":"neutral"},{"name":"Labha","start":"04:24","end":"05:53","startHours":28.39509509614905,"endHours":29.87899120807802,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:53","end":"06:53","startHours":5.878991208078022,"endHours":6.878991208078022,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:53","end":"07:53","startHours":6.878991208078022,"endHours":7.878991208078022,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:53","end":"08:53","startHours":7.878991208078022,"endHours":8.878991208078022,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:53","end":"09:53","startHours":8.878991208078022,"endHours":9.878991208078022,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:53","end":"10:53","startHours":9.878991208078022,"endHours":10.878991208078022,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:53","end":"11:53","startHours":10.878991208078022,"endHours":11.878991208078022,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:53","end":"12:53","startHours":11.878991208078022,"endHours":12.878991208078022,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:53","end":"13:53","startHours":12.878991208078022,"endHours":13.878991208078022,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:53","end":"14:53","startHours":13.878991208078022,"endHours":14.878991208078022,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:53","end":"15:53","startHours":14.878991208078022,"endHours":15.878991208078022,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:53","end":"16:53","startHours":15.878991208078022,"endHours":16.87899120807802,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:53","end":"17:53","startHours":16.87899120807802,"endHours":17.87899120807802,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:53","end":"18:53","startHours":17.87899120807802,"endHours":18.87899120807802,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:53","end":"19:53","startHours":18.87899120807802,"endHours":19.87899120807802,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:53","end":"20:53","startHours":19.87899120807802,"endHours":20.87899120807802,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:53","end":"21:53","startHours":20.87899120807802,"endHours":21.87899120807802,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:53","end":"22:53","startHours":21.87899120807802,"endHours":22.87899120807802,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:53","end":"23:53","startHours":22.87899120807802,"endHours":23.87899120807802,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:53","end":"00:53","startHours":23.87899120807802,"endHours":24.87899120807802,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:53","end":"01:53","startHours":24.87899120807802,"endHours":25.87899120807802,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:53","end":"02:53","startHours":25.87899120807802,"endHours":26.87899120807802,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:53","end":"03:53","startHours":26.87899120807802,"endHours":27.87899120807802,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:53","end":"04:53","startHours":27.87899120807802,"endHours":28.87899120807802,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:53","end":"05:53","startHours":28.87899120807802,"endHours":29.87899120807802,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Citrā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-West","rahuVasa":"East","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":0.1365893887965726,"eotMinutes":-7.842805621727393,"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":"Caitra","lunar_month_paksha_full":"Caitra Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","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":"Vasanta (Spring)","display_summary":"Caitra Kṛṣṇa Pratipada · 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":[]},"validity":{"eternal":false,"location_specific":"ranchi"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga March 21, 1981 CE · Ranchi, Jharkhand · Vidhyamitra","description":"March 21, 1981 CE for Ranchi, Jharkhand: Kṛṣṇa Pratipada, sūryodaya 05:53, sūryāsta 18:00.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ranchi/1981-03-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ranchi/1981-03-21","sa":"https://sa.vidhyamitra.com/city/ranchi/1981-03-21","hi":"https://hi.vidhyamitra.com/city/ranchi/1981-03-21","x-default":"https://vidhyamitra.com/city/ranchi/1981-03-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T20:07:52.603Z","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":"2026-05-31T20:07:52.603Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T20:07:52.603Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}