{"id":"vidhyamitra:city-day:mathura:1981-03-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/mathura/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":"mathura","name":"Mathurā","lat":27.4924,"lon":77.6737,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"mathura","name":"Mathurā","lat":27.4924,"lon":77.6737,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"06:45","sunsetLocal":"18:20","solarNoonLocal":"12:32","dayLengthHours":11.590210445688449,"dayLengthDisplay":"11 Hours 35 Mins 25 Secs","nightLengthDisplay":"12 Hours 24 Mins 35 Secs","moonriseLocal":"02:51","moonsetLocal":"13:12","rahuKala":{"name":"Rāhu Kāla","start":"16:53","end":"18:20","startHours":16.885467919751747,"endHours":18.334244225462804,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:32","end":"13:59","startHours":12.53913900261858,"endHours":13.987915308329637,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:26","end":"16:53","startHours":15.436691614040692,"endHours":16.885467919751747,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:27","end":"09:50","startHours":9.44841621710166,"endHours":9.834756565291276,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:14","end":"07:32","startHours":7.226959215011374,"endHours":7.5360314935630655,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"12:56","startHours":12.152798654428965,"endHours":12.925479350808194,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:12","end":"05:58","startHours":5.198672387015895,"endHours":5.971353083395125,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:47","end":"06:45","startHours":5.778182909300318,"endHours":6.744033779774355,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:28","end":"15:15","startHours":14.470840743566654,"endHours":15.243521439945884,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:08","end":"18:32","startHours":18.134244225462805,"endHours":18.534244225462803,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:20","end":"18:49","startHours":18.334244225462804,"endHours":18.81716966069982,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:05","end":"19:50","startHours":18.084244225462804,"endHours":19.834244225462804,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"00:56","startHours":24.152798654428963,"endHours":24.925479350808196,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:45","end":"08:12","startHours":6.744033779774355,"endHours":8.192810085485412,"quality":"inauspicious"},{"name":"Chala","start":"08:12","end":"09:38","startHours":8.192810085485412,"endHours":9.641586391196467,"quality":"neutral"},{"name":"Labha","start":"09:38","end":"11:05","startHours":9.641586391196467,"endHours":11.090362696907523,"quality":"auspicious"},{"name":"Amṛta","start":"11:05","end":"12:32","startHours":11.090362696907523,"endHours":12.53913900261858,"quality":"auspicious"},{"name":"Kāla","start":"12:32","end":"13:59","startHours":12.53913900261858,"endHours":13.987915308329637,"quality":"inauspicious"},{"name":"Śubha","start":"13:59","end":"15:26","startHours":13.987915308329637,"endHours":15.436691614040692,"quality":"auspicious"},{"name":"Roga","start":"15:26","end":"16:53","startHours":15.436691614040692,"endHours":16.885467919751747,"quality":"inauspicious"},{"name":"Udveg","start":"16:53","end":"18:20","startHours":16.885467919751747,"endHours":18.334244225462804,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:20","end":"19:53","startHours":18.334244225462804,"endHours":19.885467919751747,"quality":"auspicious"},{"name":"Roga","start":"19:53","end":"21:26","startHours":19.885467919751747,"endHours":21.43669161404069,"quality":"inauspicious"},{"name":"Udveg","start":"21:26","end":"22:59","startHours":21.43669161404069,"endHours":22.987915308329637,"quality":"inauspicious"},{"name":"Chala","start":"22:59","end":"00:32","startHours":22.987915308329637,"endHours":24.53913900261858,"quality":"neutral"},{"name":"Labha","start":"00:32","end":"02:05","startHours":24.53913900261858,"endHours":26.090362696907523,"quality":"auspicious"},{"name":"Amṛta","start":"02:05","end":"03:38","startHours":26.090362696907523,"endHours":27.64158639119647,"quality":"auspicious"},{"name":"Kāla","start":"03:38","end":"05:12","startHours":27.64158639119647,"endHours":29.192810085485412,"quality":"inauspicious"},{"name":"Śubha","start":"05:12","end":"06:45","startHours":29.192810085485412,"endHours":30.744033779774355,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:45","end":"07:45","startHours":6.744033779774355,"endHours":7.744033779774355,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:45","end":"08:45","startHours":7.744033779774355,"endHours":8.744033779774355,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:45","end":"09:45","startHours":8.744033779774355,"endHours":9.744033779774355,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:45","end":"10:45","startHours":9.744033779774355,"endHours":10.744033779774355,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:45","end":"11:45","startHours":10.744033779774355,"endHours":11.744033779774355,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:45","end":"12:45","startHours":11.744033779774355,"endHours":12.744033779774355,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:45","end":"13:45","startHours":12.744033779774355,"endHours":13.744033779774355,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:45","end":"14:45","startHours":13.744033779774355,"endHours":14.744033779774355,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:45","end":"15:45","startHours":14.744033779774355,"endHours":15.744033779774355,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:45","end":"16:45","startHours":15.744033779774355,"endHours":16.744033779774355,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:45","end":"17:45","startHours":16.744033779774355,"endHours":17.744033779774355,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:45","end":"18:45","startHours":17.744033779774355,"endHours":18.744033779774355,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:45","end":"19:45","startHours":18.744033779774355,"endHours":19.744033779774355,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:45","end":"20:45","startHours":19.744033779774355,"endHours":20.744033779774355,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:45","end":"21:45","startHours":20.744033779774355,"endHours":21.744033779774355,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:45","end":"22:45","startHours":21.744033779774355,"endHours":22.744033779774355,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:45","end":"23:45","startHours":22.744033779774355,"endHours":23.744033779774355,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:45","end":"00:45","startHours":23.744033779774355,"endHours":24.744033779774355,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:45","end":"01:45","startHours":24.744033779774355,"endHours":25.744033779774355,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:45","end":"02:45","startHours":25.744033779774355,"endHours":26.744033779774355,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:45","end":"03:45","startHours":26.744033779774355,"endHours":27.744033779774355,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:45","end":"04:45","startHours":27.744033779774355,"endHours":28.744033779774355,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:45","end":"05:45","startHours":28.744033779774355,"endHours":29.744033779774355,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:45","end":"06:45","startHours":29.744033779774355,"endHours":30.744033779774355,"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":"mathura"},"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 · Mathurā · Vidhyamitra","description":"March 1, 1981 CE for Mathurā: Kṛṣṇa Daśamī, sūryodaya 06:45, sūryāsta 18:20.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/mathura/1981-03-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/mathura/1981-03-01","sa":"https://sa.vidhyamitra.com/city/mathura/1981-03-01","hi":"https://hi.vidhyamitra.com/city/mathura/1981-03-01","x-default":"https://vidhyamitra.com/city/mathura/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":"2026-05-14T12:30:22.328Z","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":"2026-05-14T12:30:22.328Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T12:30:22.328Z","pillar_versions":{"BOB-History":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}