{"id":"vidhyamitra:city-day:noida:1981-03-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/noida/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":"noida","name":"Noida, Uttar Pradesh","lat":28.5355,"lon":77.391,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"noida","name":"Noida, Uttar Pradesh","lat":28.5355,"lon":77.391,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tier-1"},"sunriseLocal":"06:24","sunsetLocal":"18:32","solarNoonLocal":"12:28","dayLengthHours":12.136330598183704,"dayLengthDisplay":"12 Hours 08 Mins 11 Secs","nightLengthDisplay":"11 Hours 51 Mins 49 Secs","moonriseLocal":"18:48","moonsetLocal":"06:45","rahuKala":{"name":"Rāhu Kāla","start":"09:26","end":"10:57","startHours":9.437230777482863,"endHours":10.954272102255825,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:59","end":"15:30","startHours":13.98835475180175,"endHours":15.505396076574716,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:24","end":"07:55","startHours":6.403148127936936,"endHours":7.9201894527098995,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:14","end":"09:38","startHours":9.234958600846468,"endHours":9.639502954119259,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:55","end":"07:14","startHours":6.908828569527924,"endHours":7.232464052146156,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:04","end":"12:53","startHours":12.066769073756,"endHours":12.87585778030158,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:47","end":"05:36","startHours":4.784970714845776,"endHours":5.594059421391356,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:24","end":"06:24","startHours":5.391787244754961,"endHours":6.403148127936936,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:30","end":"15:18","startHours":14.49403519339274,"endHours":15.30312389993832,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:20","end":"18:44","startHours":18.339478726120642,"endHours":18.73947872612064,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:32","end":"19:03","startHours":18.53947872612064,"endHours":19.04515916771163,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:17","end":"20:02","startHours":18.28947872612064,"endHours":20.03947872612064,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:04","end":"00:53","startHours":24.066769073756,"endHours":24.87585778030158,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:24","end":"07:55","startHours":6.403148127936936,"endHours":7.9201894527098995,"quality":"inauspicious"},{"name":"Śubha","start":"07:55","end":"09:26","startHours":7.9201894527098995,"endHours":9.437230777482863,"quality":"auspicious"},{"name":"Roga","start":"09:26","end":"10:57","startHours":9.437230777482863,"endHours":10.954272102255825,"quality":"inauspicious"},{"name":"Udveg","start":"10:57","end":"12:28","startHours":10.954272102255825,"endHours":12.47131342702879,"quality":"inauspicious"},{"name":"Chala","start":"12:28","end":"13:59","startHours":12.47131342702879,"endHours":13.98835475180175,"quality":"neutral"},{"name":"Labha","start":"13:59","end":"15:30","startHours":13.98835475180175,"endHours":15.505396076574716,"quality":"auspicious"},{"name":"Amṛta","start":"15:30","end":"17:01","startHours":15.505396076574716,"endHours":17.022437401347677,"quality":"auspicious"},{"name":"Kāla","start":"17:01","end":"18:32","startHours":17.022437401347677,"endHours":18.53947872612064,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:32","end":"20:01","startHours":18.53947872612064,"endHours":20.02243740134768,"quality":"auspicious"},{"name":"Amṛta","start":"20:01","end":"21:30","startHours":20.02243740134768,"endHours":21.505396076574716,"quality":"auspicious"},{"name":"Kāla","start":"21:30","end":"22:59","startHours":21.505396076574716,"endHours":22.98835475180175,"quality":"inauspicious"},{"name":"Śubha","start":"22:59","end":"00:28","startHours":22.98835475180175,"endHours":24.47131342702879,"quality":"auspicious"},{"name":"Roga","start":"00:28","end":"01:57","startHours":24.47131342702879,"endHours":25.95427210225583,"quality":"inauspicious"},{"name":"Udveg","start":"01:57","end":"03:26","startHours":25.95427210225583,"endHours":27.437230777482863,"quality":"inauspicious"},{"name":"Chala","start":"03:26","end":"04:55","startHours":27.437230777482863,"endHours":28.9201894527099,"quality":"neutral"},{"name":"Labha","start":"04:55","end":"06:24","startHours":28.9201894527099,"endHours":30.403148127936937,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:24","end":"07:24","startHours":6.403148127936936,"endHours":7.403148127936936,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:24","end":"08:24","startHours":7.403148127936936,"endHours":8.403148127936937,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:24","end":"09:24","startHours":8.403148127936937,"endHours":9.403148127936937,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:24","end":"10:24","startHours":9.403148127936937,"endHours":10.403148127936937,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:24","end":"11:24","startHours":10.403148127936937,"endHours":11.403148127936937,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:24","end":"12:24","startHours":11.403148127936937,"endHours":12.403148127936937,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:24","end":"13:24","startHours":12.403148127936937,"endHours":13.403148127936937,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:24","end":"14:24","startHours":13.403148127936937,"endHours":14.403148127936937,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:24","end":"15:24","startHours":14.403148127936937,"endHours":15.403148127936937,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:24","end":"16:24","startHours":15.403148127936937,"endHours":16.403148127936937,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:24","end":"17:24","startHours":16.403148127936937,"endHours":17.403148127936937,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:24","end":"18:24","startHours":17.403148127936937,"endHours":18.403148127936937,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:24","end":"19:24","startHours":18.403148127936937,"endHours":19.403148127936937,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:24","end":"20:24","startHours":19.403148127936937,"endHours":20.403148127936937,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:24","end":"21:24","startHours":20.403148127936937,"endHours":21.403148127936937,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:24","end":"22:24","startHours":21.403148127936937,"endHours":22.403148127936937,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:24","end":"23:24","startHours":22.403148127936937,"endHours":23.403148127936937,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:24","end":"00:24","startHours":23.403148127936937,"endHours":24.403148127936937,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:24","end":"01:24","startHours":24.403148127936937,"endHours":25.403148127936937,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:24","end":"02:24","startHours":25.403148127936937,"endHours":26.403148127936937,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:24","end":"03:24","startHours":26.403148127936937,"endHours":27.403148127936937,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:24","end":"04:24","startHours":27.403148127936937,"endHours":28.403148127936937,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:24","end":"05:24","startHours":28.403148127936937,"endHours":29.403148127936937,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:24","end":"06:24","startHours":29.403148127936937,"endHours":30.403148127936937,"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":"noida"},"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 · Noida, Uttar Pradesh · Vidhyamitra","description":"March 21, 1981 CE for Noida, Uttar Pradesh: Kṛṣṇa Pratipada, sūryodaya 06:24, sūryāsta 18:32.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/noida/1981-03-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/noida/1981-03-21","sa":"https://sa.vidhyamitra.com/city/noida/1981-03-21","hi":"https://hi.vidhyamitra.com/city/noida/1981-03-21","x-default":"https://vidhyamitra.com/city/noida/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":"2026-06-01T18:59:24.790Z","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":"2026-06-01T18:59:24.790Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T18:59:24.790Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}