{"id":"vidhyamitra:city-day:bhavnagar:1981-03-17:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/bhavnagar/1981-03-17","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-03-17","date_display":"March 17, 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":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444680.770833,"kali_year":5082,"ahargana":1856215.2708,"sun":{"sidereal_longitude":332.998,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":110.9568,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":137.9588,"elapsed_within_tithi_degrees":5.9588},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2,"moon_longitude":110.9568,"elapsed_within_degrees":4.2902},"yoga":{"number":7,"name":"Sukarma","sum_longitude":83.9548},"karana":{"half_tithi_index":22,"name":"Bava"},"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":3,"day":17,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444680.770833,"ahargana":1856215.2708,"kali_year":5082,"ayanamsa_lahiri":23.5905,"grahas":{"sun":{"sidereal_longitude":332.77637400000003,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":111.45227399999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":2},"retrograde":false,"latitude":0.1706},"mars":{"sidereal_longitude":336.624774,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":305.49147400000004,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":163.15677400000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":true},"venus":{"sidereal_longitude":327.660674,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":163.419574,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":108.7822,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":288.7822,"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":17,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444680.770833,"kali_year":5082,"ahargana":1856215.2708,"sun":{"sidereal_longitude":332.998,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":110.9568,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":137.9588,"elapsed_within_tithi_degrees":5.9588},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2,"moon_longitude":110.9568,"elapsed_within_degrees":4.2902},"yoga":{"number":7,"name":"Sukarma","sum_longitude":83.9548},"karana":{"half_tithi_index":22,"name":"Bava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.171,"elongation":137.959},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.171,"opposition_distance":42.041}},"eclipse_window_40days":[]},"city":{"slug":"bhavnagar","name":"Bhavnagar, Gujarat","lat":21.7645,"lon":72.1519,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"bhavnagar","name":"Bhavnagar, Gujarat","lat":21.7645,"lon":72.1519,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tier-1"},"sunriseLocal":"06:49","sunsetLocal":"18:52","solarNoonLocal":"12:50","dayLengthHours":12.042729413916723,"dayLengthDisplay":"12 Hours 02 Mins 34 Secs","nightLengthDisplay":"11 Hours 57 Mins 26 Secs","moonriseLocal":"15:36","moonsetLocal":"04:35","rahuKala":{"name":"Rāhu Kāla","start":"15:51","end":"17:21","startHours":15.851619710016225,"endHours":17.356960886755814,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:50","end":"11:20","startHours":9.830255003057864,"endHours":11.335596179797454,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:50","end":"14:21","startHours":12.840937356537044,"endHours":14.346278533276635,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:38","end":"10:02","startHours":9.629542846159252,"endHours":10.030967159956475,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:19","end":"07:39","startHours":7.321353041825214,"endHours":7.642492492862993,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:26","end":"13:15","startHours":12.43951304273982,"endHours":13.242361670334267,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:13","end":"06:01","startHours":5.213875394389786,"endHours":6.016724021984235,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:49","end":"06:49","startHours":5.816011865085623,"endHours":6.819572649578683,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:51","end":"15:39","startHours":14.848058925523166,"endHours":15.650907553117614,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:40","end":"19:04","startHours":18.662302063495407,"endHours":19.062302063495405,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:52","end":"19:22","startHours":18.862302063495406,"endHours":19.364082455741936,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:37","end":"20:22","startHours":18.612302063495406,"endHours":20.362302063495406,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:26","end":"01:15","startHours":24.43951304273982,"endHours":25.24236167033427,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:49","end":"08:19","startHours":6.819572649578683,"endHours":8.324913826318273,"quality":"inauspicious"},{"name":"Udveg","start":"08:19","end":"09:50","startHours":8.324913826318273,"endHours":9.830255003057864,"quality":"inauspicious"},{"name":"Chala","start":"09:50","end":"11:20","startHours":9.830255003057864,"endHours":11.335596179797454,"quality":"neutral"},{"name":"Labha","start":"11:20","end":"12:50","startHours":11.335596179797454,"endHours":12.840937356537044,"quality":"auspicious"},{"name":"Amṛta","start":"12:50","end":"14:21","startHours":12.840937356537044,"endHours":14.346278533276635,"quality":"auspicious"},{"name":"Kāla","start":"14:21","end":"15:51","startHours":14.346278533276635,"endHours":15.851619710016225,"quality":"inauspicious"},{"name":"Śubha","start":"15:51","end":"17:21","startHours":15.851619710016225,"endHours":17.356960886755814,"quality":"auspicious"},{"name":"Roga","start":"17:21","end":"18:52","startHours":17.356960886755814,"endHours":18.862302063495406,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:52","end":"20:21","startHours":18.862302063495406,"endHours":20.356960886755814,"quality":"inauspicious"},{"name":"Śubha","start":"20:21","end":"21:51","startHours":20.356960886755814,"endHours":21.851619710016227,"quality":"auspicious"},{"name":"Roga","start":"21:51","end":"23:21","startHours":21.851619710016227,"endHours":23.346278533276635,"quality":"inauspicious"},{"name":"Udveg","start":"23:21","end":"00:50","startHours":23.346278533276635,"endHours":24.840937356537044,"quality":"inauspicious"},{"name":"Chala","start":"00:50","end":"02:20","startHours":24.840937356537044,"endHours":26.335596179797456,"quality":"neutral"},{"name":"Labha","start":"02:20","end":"03:50","startHours":26.335596179797456,"endHours":27.830255003057864,"quality":"auspicious"},{"name":"Amṛta","start":"03:50","end":"05:19","startHours":27.830255003057864,"endHours":29.324913826318273,"quality":"auspicious"},{"name":"Kāla","start":"05:19","end":"06:49","startHours":29.324913826318273,"endHours":30.81957264957868,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:49","end":"07:49","startHours":6.819572649578683,"endHours":7.819572649578683,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:49","end":"08:49","startHours":7.819572649578683,"endHours":8.819572649578683,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:49","end":"09:49","startHours":8.819572649578683,"endHours":9.819572649578683,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:49","end":"10:49","startHours":9.819572649578683,"endHours":10.819572649578683,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:49","end":"11:49","startHours":10.819572649578683,"endHours":11.819572649578683,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:49","end":"12:49","startHours":11.819572649578683,"endHours":12.819572649578683,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:49","end":"13:49","startHours":12.819572649578683,"endHours":13.819572649578683,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:49","end":"14:49","startHours":13.819572649578683,"endHours":14.819572649578683,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:49","end":"15:49","startHours":14.819572649578683,"endHours":15.819572649578683,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:49","end":"16:49","startHours":15.819572649578683,"endHours":16.81957264957868,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:49","end":"17:49","startHours":16.81957264957868,"endHours":17.81957264957868,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:49","end":"18:49","startHours":17.81957264957868,"endHours":18.81957264957868,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:49","end":"19:49","startHours":18.81957264957868,"endHours":19.81957264957868,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:49","end":"20:49","startHours":19.81957264957868,"endHours":20.81957264957868,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:49","end":"21:49","startHours":20.81957264957868,"endHours":21.81957264957868,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:49","end":"22:49","startHours":21.81957264957868,"endHours":22.81957264957868,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:49","end":"23:49","startHours":22.81957264957868,"endHours":23.81957264957868,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:49","end":"00:49","startHours":23.81957264957868,"endHours":24.81957264957868,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:49","end":"01:49","startHours":24.81957264957868,"endHours":25.81957264957868,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:49","end":"02:49","startHours":25.81957264957868,"endHours":26.81957264957868,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:49","end":"03:49","startHours":26.81957264957868,"endHours":27.81957264957868,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:49","end":"04:49","startHours":27.81957264957868,"endHours":28.81957264957868,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:49","end":"05:49","startHours":28.81957264957868,"endHours":29.81957264957868,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:49","end":"06:49","startHours":29.81957264957868,"endHours":30.81957264957868,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"South-West","rahuVasa":"North","anandadiYoga":{"name":"Mṛtyu","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-1.4441969040949783,"eotMinutes":-9.063841392222612,"ayanamsa":23.5905}},"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 Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","lunar_month_amanta":"Phālguna","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Śukla Dvādaśī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[],"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":"bhavnagar"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga March 17, 1981 CE · Bhavnagar, Gujarat · Vidhyamitra","description":"March 17, 1981 CE for Bhavnagar, Gujarat: Śukla Dvādaśī, sūryodaya 06:49, sūryāsta 18:52.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/bhavnagar/1981-03-17","hreflang_alternates":{"en":"https://vidhyamitra.com/city/bhavnagar/1981-03-17","sa":"https://sa.vidhyamitra.com/city/bhavnagar/1981-03-17","hi":"https://hi.vidhyamitra.com/city/bhavnagar/1981-03-17","x-default":"https://vidhyamitra.com/city/bhavnagar/1981-03-17"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T05:33:14.987Z","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":"2026-06-03T05:33:14.987Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T05:33:14.987Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}