{"id":"vidhyamitra:city-day:jamnagar:1980-07-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/jamnagar/1980-07-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1980-07-01","date_display":"July 1, 1980 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":1980,"month":7,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444421.770833,"kali_year":5082,"ahargana":1855956.2708,"sun":{"sidereal_longitude":75.4898,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":288.4435,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":212.9537,"elapsed_within_tithi_degrees":8.9537},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3,"moon_longitude":288.4435,"elapsed_within_degrees":8.4435},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":3.9332},"karana":{"half_tithi_index":35,"name":"Viṣṭi"},"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":1980,"month":7,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444421.770833,"ahargana":1855956.2708,"kali_year":5082,"ayanamsa_lahiri":23.5806,"grahas":{"sun":{"sidereal_longitude":75.78017,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":289.50757,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false,"latitude":1.0923},"mars":{"sidereal_longitude":151.40476999999998,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":91.62457,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":132.38806999999997,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":53.33636999999999,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":147.67397,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":122.5053,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":302.5053,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","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":1980,"month":7,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444421.770833,"kali_year":5082,"ahargana":1855956.2708,"sun":{"sidereal_longitude":75.4898,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":288.4435,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":212.9537,"elapsed_within_tithi_degrees":8.9537},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3,"moon_longitude":288.4435,"elapsed_within_degrees":8.4435},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":3.9332},"karana":{"half_tithi_index":35,"name":"Viṣṭi"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.092,"elongation":147.046},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.092,"opposition_distance":32.954}},"eclipse_window_40days":[]},"city":{"slug":"jamnagar","name":"Jamnagar, Gujarat","lat":22.4707,"lon":70.0577,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"jamnagar","name":"Jamnagar, Gujarat","lat":22.4707,"lon":70.0577,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tier-1"},"sunriseLocal":"06:09","sunsetLocal":"19:38","solarNoonLocal":"12:53","dayLengthHours":13.488229455101273,"dayLengthDisplay":"13 Hours 29 Mins 18 Secs","nightLengthDisplay":"10 Hours 30 Mins 42 Secs","moonriseLocal":"21:34","moonsetLocal":"08:42","rahuKala":{"name":"Rāhu Kāla","start":"16:16","end":"17:57","startHours":16.2594154505165,"endHours":17.94544413240416,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:31","end":"11:12","startHours":9.515300722965865,"endHours":11.201329404853523,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:53","end":"14:34","startHours":12.887358086741182,"endHours":14.573386768628842,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:17","end":"09:44","startHours":9.290496898714176,"endHours":9.740104547217552,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:42","end":"07:04","startHours":6.705252919819765,"endHours":7.064939038622466,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:26","end":"13:20","startHours":12.437750438237806,"endHours":13.336965735244558,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:21","end":"05:15","startHours":4.344812765177043,"endHours":5.244028062183794,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:01","end":"06:09","startHours":5.019224237932106,"endHours":6.143243359190546,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"15:08","end":"16:02","startHours":15.13539632925806,"endHours":16.034611626264812,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:26","end":"19:50","startHours":19.43147281429182,"endHours":19.831472814291818,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:38","end":"20:12","startHours":19.63147281429182,"endHours":20.19348237492104,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:23","end":"21:08","startHours":19.38147281429182,"endHours":21.13147281429182,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:26","end":"01:20","startHours":24.437750438237806,"endHours":25.336965735244554,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:09","end":"07:50","startHours":6.143243359190546,"endHours":7.829272041078205,"quality":"inauspicious"},{"name":"Udveg","start":"07:50","end":"09:31","startHours":7.829272041078205,"endHours":9.515300722965865,"quality":"inauspicious"},{"name":"Chala","start":"09:31","end":"11:12","startHours":9.515300722965865,"endHours":11.201329404853523,"quality":"neutral"},{"name":"Labha","start":"11:12","end":"12:53","startHours":11.201329404853523,"endHours":12.887358086741182,"quality":"auspicious"},{"name":"Amṛta","start":"12:53","end":"14:34","startHours":12.887358086741182,"endHours":14.573386768628842,"quality":"auspicious"},{"name":"Kāla","start":"14:34","end":"16:16","startHours":14.573386768628842,"endHours":16.2594154505165,"quality":"inauspicious"},{"name":"Śubha","start":"16:16","end":"17:57","startHours":16.2594154505165,"endHours":17.94544413240416,"quality":"auspicious"},{"name":"Roga","start":"17:57","end":"19:38","startHours":17.94544413240416,"endHours":19.63147281429182,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"19:38","end":"20:57","startHours":19.63147281429182,"endHours":20.94544413240416,"quality":"inauspicious"},{"name":"Śubha","start":"20:57","end":"22:16","startHours":20.94544413240416,"endHours":22.2594154505165,"quality":"auspicious"},{"name":"Roga","start":"22:16","end":"23:34","startHours":22.2594154505165,"endHours":23.57338676862884,"quality":"inauspicious"},{"name":"Udveg","start":"23:34","end":"00:53","startHours":23.57338676862884,"endHours":24.88735808674118,"quality":"inauspicious"},{"name":"Chala","start":"00:53","end":"02:12","startHours":24.88735808674118,"endHours":26.201329404853524,"quality":"neutral"},{"name":"Labha","start":"02:12","end":"03:31","startHours":26.201329404853524,"endHours":27.515300722965865,"quality":"auspicious"},{"name":"Amṛta","start":"03:31","end":"04:50","startHours":27.515300722965865,"endHours":28.829272041078205,"quality":"auspicious"},{"name":"Kāla","start":"04:50","end":"06:09","startHours":28.829272041078205,"endHours":30.143243359190546,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:09","end":"07:09","startHours":6.143243359190546,"endHours":7.143243359190546,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:09","end":"08:09","startHours":7.143243359190546,"endHours":8.143243359190546,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:09","end":"09:09","startHours":8.143243359190546,"endHours":9.143243359190546,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:09","end":"10:09","startHours":9.143243359190546,"endHours":10.143243359190546,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:09","end":"11:09","startHours":10.143243359190546,"endHours":11.143243359190546,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:09","end":"12:09","startHours":11.143243359190546,"endHours":12.143243359190546,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:09","end":"13:09","startHours":12.143243359190546,"endHours":13.143243359190546,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:09","end":"14:09","startHours":13.143243359190546,"endHours":14.143243359190546,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:09","end":"15:09","startHours":14.143243359190546,"endHours":15.143243359190546,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:09","end":"16:09","startHours":15.143243359190546,"endHours":16.143243359190546,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:09","end":"17:09","startHours":16.143243359190546,"endHours":17.143243359190546,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:09","end":"18:09","startHours":17.143243359190546,"endHours":18.143243359190546,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:09","end":"19:09","startHours":18.143243359190546,"endHours":19.143243359190546,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:09","end":"20:09","startHours":19.143243359190546,"endHours":20.143243359190546,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:09","end":"21:09","startHours":20.143243359190546,"endHours":21.143243359190546,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:09","end":"22:09","startHours":21.143243359190546,"endHours":22.143243359190546,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:09","end":"23:09","startHours":22.143243359190546,"endHours":23.143243359190546,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:09","end":"00:09","startHours":23.143243359190546,"endHours":24.143243359190546,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:09","end":"01:09","startHours":24.143243359190546,"endHours":25.143243359190546,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:09","end":"02:09","startHours":25.143243359190546,"endHours":26.143243359190546,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:09","end":"03:09","startHours":26.143243359190546,"endHours":27.143243359190546,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:09","end":"04:09","startHours":27.143243359190546,"endHours":28.143243359190546,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:09","end":"05:09","startHours":28.143243359190546,"endHours":29.143243359190546,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:09","end":"06:09","startHours":29.143243359190546,"endHours":30.143243359190546,"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","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"South-East","rahuVasa":"North","anandadiYoga":{"name":"Kāladaṇḍa","quality":"Inauspicious"},"drikRitu":"Grīṣma (Summer) (Drik)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Dakṣiṇāyana","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":23.106169542679392,"eotMinutes":-3.4722852044708983,"ayanamsa":23.5806}},"calendars":{"vikram_samvat":2037,"vikram_samvatsara":"Śrīmukha","saka_samvat":1902,"saka_samvatsara":"Raudra","bengali_samvat":1387,"malayalam_era":1156,"nanakshahi_year":511,"lunar_month":"Āṣāḍha","lunar_month_paksha_full":"Āṣāḍha Kṛṣṇa Pakṣa","solar_month":"Mithuna (Āni)","ritu":"Grīṣma (Summer)","display_summary":"Āṣāḍha Kṛṣṇa Tṛtīyā · Vikram 2037 Śrīmukha · Śaka 1902 Raudra"},"festivals":[{"id":"mithuna-sankranti","name":"Mithuna Saṅkrānti","name_sanskrit":"मिथुन सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Gemini.","vrata":false,"detection":{"sun_rashi":"Mithuna"},"precedence":5}],"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":"jamnagar"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga July 1, 1980 CE · Jamnagar, Gujarat · Vidhyamitra","description":"July 1, 1980 CE for Jamnagar, Gujarat: Kṛṣṇa Tṛtīyā, sūryodaya 06:09, sūryāsta 19:38.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/jamnagar/1980-07-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/jamnagar/1980-07-01","sa":"https://sa.vidhyamitra.com/city/jamnagar/1980-07-01","hi":"https://hi.vidhyamitra.com/city/jamnagar/1980-07-01","x-default":"https://vidhyamitra.com/city/jamnagar/1980-07-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-22T07:23:02.912Z","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":"2026-05-22T07:23:02.912Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-22T07:23:02.912Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}