{"id":"vidhyamitra:city-day:mathura:1981-09-25:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/mathura/1981-09-25","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-09-25","date_display":"September 25, 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":9,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444872.770833,"kali_year":5083,"ahargana":1856407.2708,"sun":{"sidereal_longitude":157.596,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":120.6358,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":323.0398,"elapsed_within_tithi_degrees":11.0398},"nakshatra":{"number":10,"name":"Maghā","pada":1,"moon_longitude":120.6358,"elapsed_within_degrees":0.6358},"yoga":{"number":21,"name":"Siddha","sum_longitude":278.2317},"karana":{"half_tithi_index":53,"name":"Taitila"},"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":9,"day":25,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444872.770833,"ahargana":1856407.2708,"kali_year":5083,"ayanamsa_lahiri":23.5978,"grahas":{"sun":{"sidereal_longitude":158.29393900000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":121.30743899999999,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false,"latitude":1.6862},"mars":{"sidereal_longitude":111.022539,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":184.76223900000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":173.36533899999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":200.72873900000002,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":167.56583899999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":98.6091,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":278.6091,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","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":9,"day":25,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444872.770833,"kali_year":5083,"ahargana":1856407.2708,"sun":{"sidereal_longitude":157.596,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":120.6358,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":27,"name":"Dvādaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvādaśī","elongation_degrees":323.0398,"elapsed_within_tithi_degrees":11.0398},"nakshatra":{"number":10,"name":"Maghā","pada":1,"moon_longitude":120.6358,"elapsed_within_degrees":0.6358},"yoga":{"number":21,"name":"Siddha","sum_longitude":278.2317},"karana":{"half_tithi_index":53,"name":"Taitila"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.686,"elongation":36.96},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.686,"opposition_distance":143.04}},"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":"06:08","sunsetLocal":"18:12","solarNoonLocal":"12:10","dayLengthHours":12.073011597666266,"dayLengthDisplay":"12 Hours 04 Mins 23 Secs","nightLengthDisplay":"11 Hours 55 Mins 37 Secs","moonriseLocal":"03:11","moonsetLocal":"16:13","rahuKala":{"name":"Rāhu Kāla","start":"10:40","end":"12:10","startHours":10.66018477381935,"endHours":12.169311223527632,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:11","end":"16:42","startHours":15.187564122944199,"endHours":16.696690572652482,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:39","end":"09:09","startHours":7.6419318744027835,"endHours":9.151058324111066,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:57","end":"09:21","startHours":8.949841464149962,"endHours":9.352275184072171,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:38","end":"06:57","startHours":6.635847574597261,"endHours":6.957794550535029,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:46","end":"12:34","startHours":11.766877503605423,"endHours":12.571744943449842,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:31","end":"05:20","startHours":4.523070545005664,"endHours":5.327937984850083,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:08","end":"06:08","startHours":5.126721124888978,"endHours":6.1328054246945,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"14:59","startHours":14.181479823138677,"endHours":14.986347262983095,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:00","end":"18:24","startHours":18.005817022360766,"endHours":18.405817022360765,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:12","end":"18:43","startHours":18.205817022360765,"endHours":18.708859172263526,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:57","end":"19:42","startHours":17.955817022360765,"endHours":19.705817022360765,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:46","end":"00:34","startHours":23.766877503605425,"endHours":24.57174494344984,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:08","end":"07:39","startHours":6.1328054246945,"endHours":7.6419318744027835,"quality":"neutral"},{"name":"Labha","start":"07:39","end":"09:09","startHours":7.6419318744027835,"endHours":9.151058324111066,"quality":"auspicious"},{"name":"Amṛta","start":"09:09","end":"10:40","startHours":9.151058324111066,"endHours":10.66018477381935,"quality":"auspicious"},{"name":"Kāla","start":"10:40","end":"12:10","startHours":10.66018477381935,"endHours":12.169311223527632,"quality":"inauspicious"},{"name":"Śubha","start":"12:10","end":"13:41","startHours":12.169311223527632,"endHours":13.678437673235916,"quality":"auspicious"},{"name":"Roga","start":"13:41","end":"15:11","startHours":13.678437673235916,"endHours":15.187564122944199,"quality":"inauspicious"},{"name":"Udveg","start":"15:11","end":"16:42","startHours":15.187564122944199,"endHours":16.696690572652482,"quality":"inauspicious"},{"name":"Chala","start":"16:42","end":"18:12","startHours":16.696690572652482,"endHours":18.205817022360765,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"18:12","end":"19:42","startHours":18.205817022360765,"endHours":19.696690572652482,"quality":"inauspicious"},{"name":"Udveg","start":"19:42","end":"21:11","startHours":19.696690572652482,"endHours":21.1875641229442,"quality":"inauspicious"},{"name":"Chala","start":"21:11","end":"22:41","startHours":21.1875641229442,"endHours":22.678437673235916,"quality":"neutral"},{"name":"Labha","start":"22:41","end":"00:10","startHours":22.678437673235916,"endHours":24.169311223527632,"quality":"auspicious"},{"name":"Amṛta","start":"00:10","end":"01:40","startHours":24.169311223527632,"endHours":25.66018477381935,"quality":"auspicious"},{"name":"Kāla","start":"01:40","end":"03:09","startHours":25.66018477381935,"endHours":27.151058324111066,"quality":"inauspicious"},{"name":"Śubha","start":"03:09","end":"04:39","startHours":27.151058324111066,"endHours":28.641931874402783,"quality":"auspicious"},{"name":"Roga","start":"04:39","end":"06:08","startHours":28.641931874402783,"endHours":30.1328054246945,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:08","end":"07:08","startHours":6.1328054246945,"endHours":7.1328054246945,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:08","end":"08:08","startHours":7.1328054246945,"endHours":8.1328054246945,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:08","end":"09:08","startHours":8.1328054246945,"endHours":9.1328054246945,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:08","end":"10:08","startHours":9.1328054246945,"endHours":10.1328054246945,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:08","end":"11:08","startHours":10.1328054246945,"endHours":11.1328054246945,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:08","end":"12:08","startHours":11.1328054246945,"endHours":12.1328054246945,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:08","end":"13:08","startHours":12.1328054246945,"endHours":13.1328054246945,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:08","end":"14:08","startHours":13.1328054246945,"endHours":14.1328054246945,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:08","end":"15:08","startHours":14.1328054246945,"endHours":15.1328054246945,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:08","end":"16:08","startHours":15.1328054246945,"endHours":16.1328054246945,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:08","end":"17:08","startHours":16.1328054246945,"endHours":17.1328054246945,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:08","end":"18:08","startHours":17.1328054246945,"endHours":18.1328054246945,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:08","end":"19:08","startHours":18.1328054246945,"endHours":19.1328054246945,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:08","end":"20:08","startHours":19.1328054246945,"endHours":20.1328054246945,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:08","end":"21:08","startHours":20.1328054246945,"endHours":21.1328054246945,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:08","end":"22:08","startHours":21.1328054246945,"endHours":22.1328054246945,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:08","end":"23:08","startHours":22.1328054246945,"endHours":23.1328054246945,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:08","end":"00:08","startHours":23.1328054246945,"endHours":24.1328054246945,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:08","end":"01:08","startHours":24.1328054246945,"endHours":25.1328054246945,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:08","end":"02:08","startHours":25.1328054246945,"endHours":26.1328054246945,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:08","end":"03:08","startHours":26.1328054246945,"endHours":27.1328054246945,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:08","end":"04:08","startHours":27.1328054246945,"endHours":28.1328054246945,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:08","end":"05:08","startHours":28.1328054246945,"endHours":29.1328054246945,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:08","end":"06:08","startHours":29.1328054246945,"endHours":30.1328054246945,"planetary_lord":"Mars"}],"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","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"West","rahuVasa":"South-East","anandadiYoga":{"name":"Kāladaṇḍa","quality":"Inauspicious"},"drikRitu":"Śarad (Autumn) (Drik)","vedicRitu":"Varṣā (Monsoon)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-0.7522909278635436,"eotMinutes":9.146526588342006,"ayanamsa":23.5978}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Dvādaśī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"kanya-sankranti","name":"Kanyā Saṅkrānti (Mahālaya begins)","name_sanskrit":"कन्या सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Virgo; Mahālaya / Pitṛ-Pakṣa solar marker.","vrata":false,"detection":{"sun_rashi":"Kanyā"},"precedence":4}],"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":[]},"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 September 25, 1981 CE · Mathurā · Vidhyamitra","description":"September 25, 1981 CE for Mathurā: Kṛṣṇa Dvādaśī, sūryodaya 06:08, sūryāsta 18:12.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/mathura/1981-09-25","hreflang_alternates":{"en":"https://vidhyamitra.com/city/mathura/1981-09-25","sa":"https://sa.vidhyamitra.com/city/mathura/1981-09-25","hi":"https://hi.vidhyamitra.com/city/mathura/1981-09-25","x-default":"https://vidhyamitra.com/city/mathura/1981-09-25"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T11:40:23.178Z","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":"2026-05-14T11:40:23.178Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T11:40:23.178Z","pillar_versions":{"BOB-History":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}