{"id":"vidhyamitra:city-day:surat:2012-10-04:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/surat/2012-10-04","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2012-10-04","date_display":"October 4, 2012 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":2012,"month":10,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456204.770833,"kali_year":5114,"ahargana":1867739.2708,"sun":{"sidereal_longitude":166.4135,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":33.239,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":226.8254,"elapsed_within_tithi_degrees":10.8254},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2,"moon_longitude":33.239,"elapsed_within_degrees":6.5723},"yoga":{"number":15,"name":"Vajra","sum_longitude":199.6525},"karana":{"half_tithi_index":37,"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":2012,"month":10,"day":4,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2456204.770833,"ahargana":1867739.2708,"kali_year":5114,"ayanamsa_lahiri":24.0312,"grahas":{"sun":{"sidereal_longitude":167.189573,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":3},"retrograde":false},"moon":{"sidereal_longitude":30.650373000000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2},"retrograde":false,"latitude":0.3876},"mars":{"sidereal_longitude":213.645173,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":183.60357299999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":52.00427300000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":126.680073,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":185.48677299999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":218.1852,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":38.1852,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","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":2012,"month":10,"day":4,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2456204.770833,"kali_year":5114,"ahargana":1867739.2708,"sun":{"sidereal_longitude":166.4135,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":33.239,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":226.8254,"elapsed_within_tithi_degrees":10.8254},"nakshatra":{"number":3,"name":"Kṛttikā","pada":2,"moon_longitude":33.239,"elapsed_within_degrees":6.5723},"yoga":{"number":15,"name":"Vajra","sum_longitude":199.6525},"karana":{"half_tithi_index":37,"name":"Bālava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.388,"elongation":133.175},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.388,"opposition_distance":46.825}},"eclipse_window_40days":[]},"city":{"slug":"surat","name":"Surat, Gujarat","lat":21.1702,"lon":72.8311,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"mega","elevation_m":13},"tier2":{"city":{"slug":"surat","name":"Surat, Gujarat","lat":21.1702,"lon":72.8311,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"mega","elevation_m":13},"sunriseLocal":"06:30","sunsetLocal":"18:23","solarNoonLocal":"12:27","dayLengthHours":11.889788281441545,"dayLengthDisplay":"11 Hours 53 Mins 23 Secs","nightLengthDisplay":"12 Hours 06 Mins 37 Secs","moonriseLocal":"20:47","moonsetLocal":"09:54","rahuKala":{"name":"Rāhu Kāla","start":"13:56","end":"15:25","startHours":13.929199148718691,"endHours":15.415422683898884,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:30","end":"07:59","startHours":6.498081472817725,"endHours":7.984305007997919,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:28","end":"10:57","startHours":9.470528543178112,"endHours":10.956752078358305,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:16","end":"09:40","startHours":9.272365405154087,"endHours":9.668691681202137,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:00","end":"07:19","startHours":6.99348931787779,"endHours":7.310550338716231,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:03","end":"12:50","startHours":12.046649337490445,"endHours":12.83930188958655,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:55","end":"05:42","startHours":4.9127763686255195,"endHours":5.705428920721623,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:30","end":"06:30","startHours":5.507265782697597,"endHours":6.498081472817725,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:25","end":"15:13","startHours":14.424606993778756,"endHours":15.217259545874859,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:11","end":"18:35","startHours":18.18786975425927,"endHours":18.58786975425927,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:23","end":"18:53","startHours":18.38786975425927,"endHours":18.883277599319335,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:08","end":"19:53","startHours":18.13786975425927,"endHours":19.88786975425927,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:03","end":"00:50","startHours":24.046649337490447,"endHours":24.839301889586547,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:30","end":"07:59","startHours":6.498081472817725,"endHours":7.984305007997919,"quality":"auspicious"},{"name":"Roga","start":"07:59","end":"09:28","startHours":7.984305007997919,"endHours":9.470528543178112,"quality":"inauspicious"},{"name":"Udveg","start":"09:28","end":"10:57","startHours":9.470528543178112,"endHours":10.956752078358305,"quality":"inauspicious"},{"name":"Chala","start":"10:57","end":"12:27","startHours":10.956752078358305,"endHours":12.442975613538497,"quality":"neutral"},{"name":"Labha","start":"12:27","end":"13:56","startHours":12.442975613538497,"endHours":13.929199148718691,"quality":"auspicious"},{"name":"Amṛta","start":"13:56","end":"15:25","startHours":13.929199148718691,"endHours":15.415422683898884,"quality":"auspicious"},{"name":"Kāla","start":"15:25","end":"16:54","startHours":15.415422683898884,"endHours":16.901646219079076,"quality":"inauspicious"},{"name":"Śubha","start":"16:54","end":"18:23","startHours":16.901646219079076,"endHours":18.38786975425927,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:23","end":"19:54","startHours":18.38786975425927,"endHours":19.901646219079076,"quality":"auspicious"},{"name":"Kāla","start":"19:54","end":"21:25","startHours":19.901646219079076,"endHours":21.415422683898885,"quality":"inauspicious"},{"name":"Śubha","start":"21:25","end":"22:56","startHours":21.415422683898885,"endHours":22.92919914871869,"quality":"auspicious"},{"name":"Roga","start":"22:56","end":"00:27","startHours":22.92919914871869,"endHours":24.442975613538497,"quality":"inauspicious"},{"name":"Udveg","start":"00:27","end":"01:57","startHours":24.442975613538497,"endHours":25.956752078358306,"quality":"inauspicious"},{"name":"Chala","start":"01:57","end":"03:28","startHours":25.956752078358306,"endHours":27.470528543178112,"quality":"neutral"},{"name":"Labha","start":"03:28","end":"04:59","startHours":27.470528543178112,"endHours":28.984305007997918,"quality":"auspicious"},{"name":"Amṛta","start":"04:59","end":"06:30","startHours":28.984305007997918,"endHours":30.498081472817724,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:30","end":"07:30","startHours":6.498081472817725,"endHours":7.498081472817725,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:30","end":"08:30","startHours":7.498081472817725,"endHours":8.498081472817725,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:30","end":"09:30","startHours":8.498081472817725,"endHours":9.498081472817725,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:30","end":"10:30","startHours":9.498081472817725,"endHours":10.498081472817725,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:30","end":"11:30","startHours":10.498081472817725,"endHours":11.498081472817725,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:30","end":"12:30","startHours":11.498081472817725,"endHours":12.498081472817725,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:30","end":"13:30","startHours":12.498081472817725,"endHours":13.498081472817725,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:30","end":"14:30","startHours":13.498081472817725,"endHours":14.498081472817725,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:30","end":"15:30","startHours":14.498081472817725,"endHours":15.498081472817725,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:30","end":"16:30","startHours":15.498081472817725,"endHours":16.498081472817724,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:30","end":"17:30","startHours":16.498081472817724,"endHours":17.498081472817724,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:30","end":"18:30","startHours":17.498081472817724,"endHours":18.498081472817724,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:30","end":"19:30","startHours":18.498081472817724,"endHours":19.498081472817724,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:30","end":"20:30","startHours":19.498081472817724,"endHours":20.498081472817724,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:30","end":"21:30","startHours":20.498081472817724,"endHours":21.498081472817724,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:30","end":"22:30","startHours":21.498081472817724,"endHours":22.498081472817724,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:30","end":"23:30","startHours":22.498081472817724,"endHours":23.498081472817724,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:30","end":"00:30","startHours":23.498081472817724,"endHours":24.498081472817724,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:30","end":"01:30","startHours":24.498081472817724,"endHours":25.498081472817724,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:30","end":"02:30","startHours":25.498081472817724,"endHours":26.498081472817724,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:30","end":"03:30","startHours":26.498081472817724,"endHours":27.498081472817724,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:30","end":"04:30","startHours":27.498081472817724,"endHours":28.498081472817724,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:30","end":"05:30","startHours":28.498081472817724,"endHours":29.498081472817724,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:30","end":"06:30","startHours":29.498081472817724,"endHours":30.498081472817724,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"South-East","rahuVasa":"North-West","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-4.43883181341952,"eotMinutes":12.09706318769023,"ayanamsa":24.0312}},"calendars":{"vikram_samvat":2069,"vikram_samvatsara":"Viśvāvasu","saka_samvat":1934,"saka_samvatsara":"Nandana","bengali_samvat":1419,"malayalam_era":1188,"nanakshahi_year":543,"lunar_month":"Āśvina","lunar_month_paksha_full":"Āśvina Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Āśvina","lunar_month_amanta":"Bhādrapada","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kanyā (Puraṭṭāsi)","ritu":"Śarad (Autumn)","display_summary":"Āśvina Kṛṣṇa Caturthī · Vikram 2069 Viśvāvasu · Śaka 1934 Nandana"},"festivals":[{"id":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","url":"/day/-3137-12-25","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"surat"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga October 4, 2012 CE · Surat, Gujarat · Vidhyamitra","description":"October 4, 2012 CE for Surat, Gujarat: Kṛṣṇa Caturthī, sūryodaya 06:30, sūryāsta 18:23.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/surat/2012-10-04","hreflang_alternates":{"en":"https://vidhyamitra.com/city/surat/2012-10-04","sa":"https://sa.vidhyamitra.com/city/surat/2012-10-04","hi":"https://hi.vidhyamitra.com/city/surat/2012-10-04","x-default":"https://vidhyamitra.com/city/surat/2012-10-04"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T00:37:00.694Z","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":"2026-06-01T00:37:00.694Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T00:37:00.694Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}