{"id":"vidhyamitra:city-day:shimla:1981-09-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/shimla/1981-09-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-09-01","date_display":"September 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":9,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444848.770833,"kali_year":5083,"ahargana":1856383.2708,"sun":{"sidereal_longitude":134.2856,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":165.5561,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":31.2705,"elapsed_within_tithi_degrees":7.2705},"nakshatra":{"number":13,"name":"Hasta","pada":2,"moon_longitude":165.5561,"elapsed_within_degrees":5.5561},"yoga":{"number":23,"name":"Śubha","sum_longitude":299.8417},"karana":{"half_tithi_index":5,"name":"Gara"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444848.770833,"ahargana":1856383.2708,"kali_year":5083,"ayanamsa_lahiri":23.5969,"grahas":{"sun":{"sidereal_longitude":134.928656,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":163.704156,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false,"latitude":4.0998},"mars":{"sidereal_longitude":95.99525599999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":153.63815599999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":168.39735599999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"venus":{"sidereal_longitude":172.65545599999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":164.74965599999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":99.8808,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":279.8808,"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":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444848.770833,"kali_year":5083,"ahargana":1856383.2708,"sun":{"sidereal_longitude":134.2856,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":165.5561,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":3,"name":"Tṛtīyā","paksha":"Śukla","full_name":"Śukla Tṛtīyā","elongation_degrees":31.2705,"elapsed_within_tithi_degrees":7.2705},"nakshatra":{"number":13,"name":"Hasta","pada":2,"moon_longitude":165.5561,"elapsed_within_degrees":5.5561},"yoga":{"number":23,"name":"Śubha","sum_longitude":299.8417},"karana":{"half_tithi_index":5,"name":"Gara"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.1,"elongation":31.271},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.1,"opposition_distance":148.729}},"eclipse_window_40days":[]},"city":{"slug":"shimla","name":"Shimla, Himachal Pradesh","lat":31.1048,"lon":77.1734,"tz_offset_hours":5.5,"state":"Himachal Pradesh","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"shimla","name":"Shimla, Himachal Pradesh","lat":31.1048,"lon":77.1734,"tz_offset_hours":5.5,"state":"Himachal Pradesh","country":"IN","tier":"tier-1"},"sunriseLocal":"05:57","sunsetLocal":"18:45","solarNoonLocal":"12:21","dayLengthHours":12.810992008565982,"dayLengthDisplay":"12 Hours 48 Mins 40 Secs","nightLengthDisplay":"11 Hours 11 Mins 20 Secs","moonriseLocal":"08:20","moonsetLocal":"20:12","rahuKala":{"name":"Rāhu Kāla","start":"15:33","end":"17:09","startHours":15.549921038623609,"endHours":17.151295039694354,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:09","end":"10:45","startHours":9.144425034340617,"endHours":10.745799035411364,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:21","end":"13:57","startHours":12.347173036482111,"endHours":13.94854703755286,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:56","end":"09:21","startHours":8.930908500864517,"endHours":9.357941567816717,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:29","end":"06:49","startHours":6.475468365889371,"endHours":6.81709481945113,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:55","end":"12:46","startHours":11.920139969529911,"endHours":12.774206103434311,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:14","end":"05:05","startHours":4.233544764390324,"endHours":5.087610898294722,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:52","end":"05:57","startHours":4.874094364818623,"endHours":5.941677032199121,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:29","end":"15:20","startHours":14.48233837124311,"endHours":15.336404505147508,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:33","end":"18:57","startHours":18.552669040765103,"endHours":18.9526690407651,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:45","end":"19:17","startHours":18.752669040765102,"endHours":19.286460374455352,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:30","end":"20:15","startHours":18.502669040765102,"endHours":20.252669040765102,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:55","end":"00:46","startHours":23.920139969529913,"endHours":24.77420610343431,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"05:57","end":"07:33","startHours":5.941677032199121,"endHours":7.543051033269869,"quality":"inauspicious"},{"name":"Udveg","start":"07:33","end":"09:09","startHours":7.543051033269869,"endHours":9.144425034340617,"quality":"inauspicious"},{"name":"Chala","start":"09:09","end":"10:45","startHours":9.144425034340617,"endHours":10.745799035411364,"quality":"neutral"},{"name":"Labha","start":"10:45","end":"12:21","startHours":10.745799035411364,"endHours":12.347173036482111,"quality":"auspicious"},{"name":"Amṛta","start":"12:21","end":"13:57","startHours":12.347173036482111,"endHours":13.94854703755286,"quality":"auspicious"},{"name":"Kāla","start":"13:57","end":"15:33","startHours":13.94854703755286,"endHours":15.549921038623609,"quality":"inauspicious"},{"name":"Śubha","start":"15:33","end":"17:09","startHours":15.549921038623609,"endHours":17.151295039694354,"quality":"auspicious"},{"name":"Roga","start":"17:09","end":"18:45","startHours":17.151295039694354,"endHours":18.752669040765102,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:45","end":"20:09","startHours":18.752669040765102,"endHours":20.151295039694354,"quality":"inauspicious"},{"name":"Śubha","start":"20:09","end":"21:33","startHours":20.151295039694354,"endHours":21.54992103862361,"quality":"auspicious"},{"name":"Roga","start":"21:33","end":"22:57","startHours":21.54992103862361,"endHours":22.94854703755286,"quality":"inauspicious"},{"name":"Udveg","start":"22:57","end":"00:21","startHours":22.94854703755286,"endHours":24.34717303648211,"quality":"inauspicious"},{"name":"Chala","start":"00:21","end":"01:45","startHours":24.34717303648211,"endHours":25.745799035411363,"quality":"neutral"},{"name":"Labha","start":"01:45","end":"03:09","startHours":25.745799035411363,"endHours":27.144425034340614,"quality":"auspicious"},{"name":"Amṛta","start":"03:09","end":"04:33","startHours":27.144425034340614,"endHours":28.54305103326987,"quality":"auspicious"},{"name":"Kāla","start":"04:33","end":"05:57","startHours":28.54305103326987,"endHours":29.94167703219912,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:57","end":"06:57","startHours":5.941677032199121,"endHours":6.941677032199121,"planetary_lord":"Mars"},{"name":"Hora 2","start":"06:57","end":"07:57","startHours":6.941677032199121,"endHours":7.941677032199121,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"07:57","end":"08:57","startHours":7.941677032199121,"endHours":8.94167703219912,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"08:57","end":"09:57","startHours":8.94167703219912,"endHours":9.94167703219912,"planetary_lord":"Moon"},{"name":"Hora 5","start":"09:57","end":"10:57","startHours":9.94167703219912,"endHours":10.94167703219912,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"10:57","end":"11:57","startHours":10.94167703219912,"endHours":11.94167703219912,"planetary_lord":"Venus"},{"name":"Hora 7","start":"11:57","end":"12:57","startHours":11.94167703219912,"endHours":12.94167703219912,"planetary_lord":"Sun"},{"name":"Hora 8","start":"12:57","end":"13:57","startHours":12.94167703219912,"endHours":13.94167703219912,"planetary_lord":"Mars"},{"name":"Hora 9","start":"13:57","end":"14:57","startHours":13.94167703219912,"endHours":14.94167703219912,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"14:57","end":"15:57","startHours":14.94167703219912,"endHours":15.94167703219912,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"15:57","end":"16:57","startHours":15.94167703219912,"endHours":16.94167703219912,"planetary_lord":"Moon"},{"name":"Hora 12","start":"16:57","end":"17:57","startHours":16.94167703219912,"endHours":17.94167703219912,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"17:57","end":"18:57","startHours":17.94167703219912,"endHours":18.94167703219912,"planetary_lord":"Venus"},{"name":"Hora 14","start":"18:57","end":"19:57","startHours":18.94167703219912,"endHours":19.94167703219912,"planetary_lord":"Sun"},{"name":"Hora 15","start":"19:57","end":"20:57","startHours":19.94167703219912,"endHours":20.94167703219912,"planetary_lord":"Mars"},{"name":"Hora 16","start":"20:57","end":"21:57","startHours":20.94167703219912,"endHours":21.94167703219912,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"21:57","end":"22:57","startHours":21.94167703219912,"endHours":22.94167703219912,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"22:57","end":"23:57","startHours":22.94167703219912,"endHours":23.94167703219912,"planetary_lord":"Moon"},{"name":"Hora 19","start":"23:57","end":"00:57","startHours":23.94167703219912,"endHours":24.94167703219912,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"00:57","end":"01:57","startHours":24.94167703219912,"endHours":25.94167703219912,"planetary_lord":"Venus"},{"name":"Hora 21","start":"01:57","end":"02:57","startHours":25.94167703219912,"endHours":26.94167703219912,"planetary_lord":"Sun"},{"name":"Hora 22","start":"02:57","end":"03:57","startHours":26.94167703219912,"endHours":27.94167703219912,"planetary_lord":"Mars"},{"name":"Hora 23","start":"03:57","end":"04:57","startHours":27.94167703219912,"endHours":28.94167703219912,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"04:57","end":"05:57","startHours":28.94167703219912,"endHours":29.94167703219912,"planetary_lord":"Saturn"}],"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":"North (Uttara)","chandraVasa":"North-West","rahuVasa":"North","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":8.372277980105139,"eotMinutes":0.47601781107335894,"ayanamsa":23.5969}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Bhādrapada","lunar_month_paksha_full":"Bhādrapada Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Bhādrapada","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Siṃha (Āvaṇi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Tṛtīyā · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"varaha-jayanti","name":"Varāha Jayantī","name_sanskrit":"वराह जयन्ती","tradition":"Vaishnava","associated_deity":"Varāha (3rd daśāvatāra of Krishna)","deity_avatara_index":12,"significance":"Varāha lifted Bhū-Devī from the cosmic ocean.","vrata":false,"detection":{"tithi_number":3,"tithi_paksha":"Śukla","lunar_month":"Bhādrapada"},"precedence":4,"sources":["Bhāgavata 3.13"]}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"shimla"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga September 1, 1981 CE · Shimla, Himachal Pradesh · Vidhyamitra","description":"September 1, 1981 CE for Shimla, Himachal Pradesh: Śukla Tṛtīyā, sūryodaya 05:57, sūryāsta 18:45.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/shimla/1981-09-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/shimla/1981-09-01","sa":"https://sa.vidhyamitra.com/city/shimla/1981-09-01","hi":"https://hi.vidhyamitra.com/city/shimla/1981-09-01","x-default":"https://vidhyamitra.com/city/shimla/1981-09-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T21:13:43.377Z","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":"2026-06-02T21:13:43.377Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T21:13:43.377Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}