{"id":"vidhyamitra:city-day:ranchi:1981-03-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ranchi/1981-03-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-03-01","date_display":"March 1, 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":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444664.770833,"kali_year":5082,"ahargana":1856199.2708,"sun":{"sidereal_longitude":316.9809,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":250.5865,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":293.6057,"elapsed_within_tithi_degrees":5.6057},"nakshatra":{"number":19,"name":"Mūla","pada":4,"moon_longitude":250.5865,"elapsed_within_degrees":10.5865},"yoga":{"number":16,"name":"Siddhi","sum_longitude":207.5674},"karana":{"half_tithi_index":48,"name":"Vaṇija"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444664.770833,"ahargana":1856199.2708,"kali_year":5082,"ayanamsa_lahiri":23.5899,"grahas":{"sun":{"sidereal_longitude":316.78298599999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":249.08198600000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false,"latitude":2.8328},"mars":{"sidereal_longitude":324.119286,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":296.62168599999995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":164.98058600000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"venus":{"sidereal_longitude":307.703886,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":164.550386,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":109.63,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":289.63,"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":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444664.770833,"kali_year":5082,"ahargana":1856199.2708,"sun":{"sidereal_longitude":316.9809,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":250.5865,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":25,"name":"Daśamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Daśamī","elongation_degrees":293.6057,"elapsed_within_tithi_degrees":5.6057},"nakshatra":{"number":19,"name":"Mūla","pada":4,"moon_longitude":250.5865,"elapsed_within_degrees":10.5865},"yoga":{"number":16,"name":"Siddhi","sum_longitude":207.5674},"karana":{"half_tithi_index":48,"name":"Vaṇija"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.833,"elongation":66.394},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.833,"opposition_distance":113.606}},"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":"06:11","sunsetLocal":"17:52","solarNoonLocal":"12:02","dayLengthHours":11.67750404645355,"dayLengthDisplay":"11 Hours 40 Mins 39 Secs","nightLengthDisplay":"12 Hours 19 Mins 21 Secs","moonriseLocal":"02:11","moonsetLocal":"12:51","rahuKala":{"name":"Rāhu Kāla","start":"16:25","end":"17:52","startHours":16.40914302003866,"endHours":17.868831025845353,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:02","end":"13:29","startHours":12.030079002618578,"endHours":13.489767008425272,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:57","end":"16:25","startHours":14.949455014231965,"endHours":16.40914302003866,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:55","end":"09:18","startHours":8.916077923564298,"endHours":9.305328058446085,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:41","end":"06:59","startHours":6.677889647994036,"endHours":6.989289755899463,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:38","end":"12:25","startHours":11.640828867736793,"endHours":12.419329137500362,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:38","end":"05:25","startHours":4.634326439864664,"endHours":5.412826709628234,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:13","end":"06:11","startHours":5.218201642187342,"endHours":6.191326979391804,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:59","end":"14:45","startHours":13.976329677027504,"endHours":14.754829946791075,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:40","end":"18:04","startHours":17.668831025845353,"endHours":18.068831025845352,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:52","end":"18:21","startHours":17.868831025845353,"endHours":18.355393694447585,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:37","end":"19:22","startHours":17.618831025845353,"endHours":19.368831025845353,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:38","end":"00:25","startHours":23.640828867736793,"endHours":24.419329137500362,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:11","end":"07:39","startHours":6.191326979391804,"endHours":7.651014985198498,"quality":"inauspicious"},{"name":"Chala","start":"07:39","end":"09:07","startHours":7.651014985198498,"endHours":9.11070299100519,"quality":"neutral"},{"name":"Labha","start":"09:07","end":"10:34","startHours":9.11070299100519,"endHours":10.570390996811884,"quality":"auspicious"},{"name":"Amṛta","start":"10:34","end":"12:02","startHours":10.570390996811884,"endHours":12.030079002618578,"quality":"auspicious"},{"name":"Kāla","start":"12:02","end":"13:29","startHours":12.030079002618578,"endHours":13.489767008425272,"quality":"inauspicious"},{"name":"Śubha","start":"13:29","end":"14:57","startHours":13.489767008425272,"endHours":14.949455014231965,"quality":"auspicious"},{"name":"Roga","start":"14:57","end":"16:25","startHours":14.949455014231965,"endHours":16.40914302003866,"quality":"inauspicious"},{"name":"Udveg","start":"16:25","end":"17:52","startHours":16.40914302003866,"endHours":17.868831025845353,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:52","end":"19:25","startHours":17.868831025845353,"endHours":19.40914302003866,"quality":"auspicious"},{"name":"Roga","start":"19:25","end":"20:57","startHours":19.40914302003866,"endHours":20.949455014231965,"quality":"inauspicious"},{"name":"Udveg","start":"20:57","end":"22:29","startHours":20.949455014231965,"endHours":22.48976700842527,"quality":"inauspicious"},{"name":"Chala","start":"22:29","end":"00:02","startHours":22.48976700842527,"endHours":24.030079002618578,"quality":"neutral"},{"name":"Labha","start":"00:02","end":"01:34","startHours":24.030079002618578,"endHours":25.570390996811884,"quality":"auspicious"},{"name":"Amṛta","start":"01:34","end":"03:07","startHours":25.570390996811884,"endHours":27.11070299100519,"quality":"auspicious"},{"name":"Kāla","start":"03:07","end":"04:39","startHours":27.11070299100519,"endHours":28.651014985198497,"quality":"inauspicious"},{"name":"Śubha","start":"04:39","end":"06:11","startHours":28.651014985198497,"endHours":30.191326979391803,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:11","end":"07:11","startHours":6.191326979391804,"endHours":7.191326979391804,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:11","end":"08:11","startHours":7.191326979391804,"endHours":8.191326979391803,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:11","end":"09:11","startHours":8.191326979391803,"endHours":9.191326979391803,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:11","end":"10:11","startHours":9.191326979391803,"endHours":10.191326979391803,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:11","end":"11:11","startHours":10.191326979391803,"endHours":11.191326979391803,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:11","end":"12:11","startHours":11.191326979391803,"endHours":12.191326979391803,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:11","end":"13:11","startHours":12.191326979391803,"endHours":13.191326979391803,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:11","end":"14:11","startHours":13.191326979391803,"endHours":14.191326979391803,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:11","end":"15:11","startHours":14.191326979391803,"endHours":15.191326979391803,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:11","end":"16:11","startHours":15.191326979391803,"endHours":16.191326979391803,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:11","end":"17:11","startHours":16.191326979391803,"endHours":17.191326979391803,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:11","end":"18:11","startHours":17.191326979391803,"endHours":18.191326979391803,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:11","end":"19:11","startHours":18.191326979391803,"endHours":19.191326979391803,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:11","end":"20:11","startHours":19.191326979391803,"endHours":20.191326979391803,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:11","end":"21:11","startHours":20.191326979391803,"endHours":21.191326979391803,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:11","end":"22:11","startHours":21.191326979391803,"endHours":22.191326979391803,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:11","end":"23:11","startHours":22.191326979391803,"endHours":23.191326979391803,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:11","end":"00:11","startHours":23.191326979391803,"endHours":24.191326979391803,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:11","end":"01:11","startHours":24.191326979391803,"endHours":25.191326979391803,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:11","end":"02:11","startHours":25.191326979391803,"endHours":26.191326979391803,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:11","end":"03:11","startHours":26.191326979391803,"endHours":27.191326979391803,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:11","end":"04:11","startHours":27.191326979391803,"endHours":28.191326979391803,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:11","end":"05:11","startHours":28.191326979391803,"endHours":29.191326979391803,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:11","end":"06:11","startHours":29.191326979391803,"endHours":30.191326979391803,"planetary_lord":"Jupiter"}],"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":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"East","rahuVasa":"North-East","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"drikRitu":"Śiśira (Winter) (Drik)","vedicRitu":"Śiśira (Winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-7.677514979735213,"eotMinutes":-13.043140157114735,"ayanamsa":23.5899}},"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 Kṛṣṇa Pakṣa","solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Kṛṣṇa Daśamī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"kumbha-sankranti","name":"Kumbha Saṅkrānti","name_sanskrit":"कुम्भ सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aquarius; Kumbha-māsa begins.","vrata":false,"detection":{"sun_rashi":"Kumbha"},"precedence":5}],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — 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 1, 1981 CE · Ranchi, Jharkhand · Vidhyamitra","description":"March 1, 1981 CE for Ranchi, Jharkhand: Kṛṣṇa Daśamī, sūryodaya 06:11, sūryāsta 17:52.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ranchi/1981-03-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ranchi/1981-03-01","sa":"https://sa.vidhyamitra.com/city/ranchi/1981-03-01","hi":"https://hi.vidhyamitra.com/city/ranchi/1981-03-01","x-default":"https://vidhyamitra.com/city/ranchi/1981-03-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-18T00:03:51.442Z","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":"2026-05-18T00:03:51.442Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-18T00:03:51.442Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}