{"id":"vidhyamitra:city-day:pune:1981-12-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/pune/1981-12-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-12-31","date_display":"December 31, 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":12,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444969.770833,"kali_year":5083,"ahargana":1856504.2708,"sun":{"sidereal_longitude":255.4745,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":310.2649,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":54.7904,"elapsed_within_tithi_degrees":6.7904},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2,"moon_longitude":310.2649,"elapsed_within_degrees":3.5983},"yoga":{"number":16,"name":"Siddhi","sum_longitude":205.7394},"karana":{"half_tithi_index":9,"name":"Bālava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":12,"day":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444969.770833,"ahargana":1856504.2708,"kali_year":5083,"ayanamsa_lahiri":23.6015,"grahas":{"sun":{"sidereal_longitude":255.674032,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":307.425932,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false,"latitude":-2.6935},"mars":{"sidereal_longitude":163.266432,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":267.70553199999995,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":192.751532,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"venus":{"sidereal_longitude":285.508232,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":true},"saturn":{"sidereal_longitude":177.50393199999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":93.4696,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":273.4696,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","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":12,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444969.770833,"kali_year":5083,"ahargana":1856504.2708,"sun":{"sidereal_longitude":255.4745,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":310.2649,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":54.7904,"elapsed_within_tithi_degrees":6.7904},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2,"moon_longitude":310.2649,"elapsed_within_degrees":3.5983},"yoga":{"number":16,"name":"Siddhi","sum_longitude":205.7394},"karana":{"half_tithi_index":9,"name":"Bālava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.694,"elongation":54.79},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.694,"opposition_distance":125.21}},"eclipse_window_40days":[]},"city":{"slug":"pune","name":"Pune, Maharashtra","lat":18.5204,"lon":73.8567,"tz_offset_hours":5.5,"state":"Maharashtra","country":"IN","tier":"mega","elevation_m":560},"tier2":{"city":{"slug":"pune","name":"Pune, Maharashtra","lat":18.5204,"lon":73.8567,"tz_offset_hours":5.5,"state":"Maharashtra","country":"IN","tier":"mega","elevation_m":560},"sunriseLocal":"07:07","sunsetLocal":"18:09","solarNoonLocal":"12:38","dayLengthHours":11.032557744316776,"dayLengthDisplay":"11 Hours 01 Mins 57 Secs","nightLengthDisplay":"12 Hours 58 Mins 03 Secs","moonriseLocal":"10:17","moonsetLocal":"21:52","rahuKala":{"name":"Rāhu Kāla","start":"14:01","end":"15:23","startHours":14.009560300103022,"endHours":15.388630018142617,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:07","end":"08:30","startHours":7.114211709905036,"endHours":8.493281427944634,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:52","end":"11:15","startHours":9.87235114598423,"endHours":11.251420864023828,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:41","end":"10:03","startHours":9.688475183578952,"endHours":10.05622710838951,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:34","end":"07:52","startHours":7.573901615918235,"endHours":7.868103155766682,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:16","end":"13:00","startHours":12.262738657252864,"endHours":12.998242506873982,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:39","end":"06:23","startHours":5.643204010662799,"endHours":6.378707860283917,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:12","end":"07:07","startHours":6.194831897878638,"endHours":7.114211709905036,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:28","end":"15:12","startHours":14.46925020611622,"endHours":15.204754055737338,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:57","end":"18:21","startHours":17.946769454221812,"endHours":18.34676945422181,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:09","end":"18:36","startHours":18.14676945422181,"endHours":18.60645936023501,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:54","end":"19:39","startHours":17.89676945422181,"endHours":19.64676945422181,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:16","end":"01:00","startHours":24.262738657252864,"endHours":24.998242506873982,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:07","end":"08:30","startHours":7.114211709905036,"endHours":8.493281427944634,"quality":"auspicious"},{"name":"Roga","start":"08:30","end":"09:52","startHours":8.493281427944634,"endHours":9.87235114598423,"quality":"inauspicious"},{"name":"Udveg","start":"09:52","end":"11:15","startHours":9.87235114598423,"endHours":11.251420864023828,"quality":"inauspicious"},{"name":"Chala","start":"11:15","end":"12:38","startHours":11.251420864023828,"endHours":12.630490582063423,"quality":"neutral"},{"name":"Labha","start":"12:38","end":"14:01","startHours":12.630490582063423,"endHours":14.009560300103022,"quality":"auspicious"},{"name":"Amṛta","start":"14:01","end":"15:23","startHours":14.009560300103022,"endHours":15.388630018142617,"quality":"auspicious"},{"name":"Kāla","start":"15:23","end":"16:46","startHours":15.388630018142617,"endHours":16.767699736182216,"quality":"inauspicious"},{"name":"Śubha","start":"16:46","end":"18:09","startHours":16.767699736182216,"endHours":18.14676945422181,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:09","end":"19:46","startHours":18.14676945422181,"endHours":19.767699736182216,"quality":"auspicious"},{"name":"Kāla","start":"19:46","end":"21:23","startHours":19.767699736182216,"endHours":21.388630018142617,"quality":"inauspicious"},{"name":"Śubha","start":"21:23","end":"23:01","startHours":21.388630018142617,"endHours":23.00956030010302,"quality":"auspicious"},{"name":"Roga","start":"23:01","end":"00:38","startHours":23.00956030010302,"endHours":24.630490582063423,"quality":"inauspicious"},{"name":"Udveg","start":"00:38","end":"02:15","startHours":24.630490582063423,"endHours":26.251420864023828,"quality":"inauspicious"},{"name":"Chala","start":"02:15","end":"03:52","startHours":26.251420864023828,"endHours":27.87235114598423,"quality":"neutral"},{"name":"Labha","start":"03:52","end":"05:30","startHours":27.87235114598423,"endHours":29.49328142794463,"quality":"auspicious"},{"name":"Amṛta","start":"05:30","end":"07:07","startHours":29.49328142794463,"endHours":31.114211709905035,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:07","end":"08:07","startHours":7.114211709905036,"endHours":8.114211709905035,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:07","end":"09:07","startHours":8.114211709905035,"endHours":9.114211709905035,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:07","end":"10:07","startHours":9.114211709905035,"endHours":10.114211709905035,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:07","end":"11:07","startHours":10.114211709905035,"endHours":11.114211709905035,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:07","end":"12:07","startHours":11.114211709905035,"endHours":12.114211709905035,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:07","end":"13:07","startHours":12.114211709905035,"endHours":13.114211709905035,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:07","end":"14:07","startHours":13.114211709905035,"endHours":14.114211709905035,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:07","end":"15:07","startHours":14.114211709905035,"endHours":15.114211709905035,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:07","end":"16:07","startHours":15.114211709905035,"endHours":16.114211709905035,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:07","end":"17:07","startHours":16.114211709905035,"endHours":17.114211709905035,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:07","end":"18:07","startHours":17.114211709905035,"endHours":18.114211709905035,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:07","end":"19:07","startHours":18.114211709905035,"endHours":19.114211709905035,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:07","end":"20:07","startHours":19.114211709905035,"endHours":20.114211709905035,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:07","end":"21:07","startHours":20.114211709905035,"endHours":21.114211709905035,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:07","end":"22:07","startHours":21.114211709905035,"endHours":22.114211709905035,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:07","end":"23:07","startHours":22.114211709905035,"endHours":23.114211709905035,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:07","end":"00:07","startHours":23.114211709905035,"endHours":24.114211709905035,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:07","end":"01:07","startHours":24.114211709905035,"endHours":25.114211709905035,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:07","end":"02:07","startHours":25.114211709905035,"endHours":26.114211709905035,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:07","end":"03:07","startHours":26.114211709905035,"endHours":27.114211709905035,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:07","end":"04:07","startHours":27.114211709905035,"endHours":28.114211709905035,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:07","end":"05:07","startHours":28.114211709905035,"endHours":29.114211709905035,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:07","end":"06:07","startHours":29.114211709905035,"endHours":30.114211709905035,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:07","end":"07:07","startHours":30.114211709905035,"endHours":31.114211709905035,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South","rahuVasa":"North-West","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.11213771358098,"eotMinutes":-3.2562349238053434,"ayanamsa":23.6015}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Pañcamī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"pune"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga December 31, 1981 CE · Pune, Maharashtra · Vidhyamitra","description":"December 31, 1981 CE for Pune, Maharashtra: Śukla Pañcamī, sūryodaya 07:07, sūryāsta 18:09.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/pune/1981-12-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/pune/1981-12-31","sa":"https://sa.vidhyamitra.com/city/pune/1981-12-31","hi":"https://hi.vidhyamitra.com/city/pune/1981-12-31","x-default":"https://vidhyamitra.com/city/pune/1981-12-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T17:11:35.584Z","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":"2026-06-01T17:11:35.584Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T17:11:35.584Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}