{"id":"vidhyamitra:city-day:surat:2003-05-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/surat/2003-05-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2003-05-13","date_display":"May 13, 2003 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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2003,"month":5,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2452772.770833,"kali_year":5105,"ahargana":1864307.2708,"sun":{"sidereal_longitude":27.9842,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":166.3804,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":138.3962,"elapsed_within_tithi_degrees":6.3962},"nakshatra":{"number":13,"name":"Hasta","pada":2,"moon_longitude":166.3804,"elapsed_within_degrees":6.3804},"yoga":{"number":15,"name":"Vajra","sum_longitude":194.3646},"karana":{"half_tithi_index":23,"name":"Bālava"},"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":2003,"month":5,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2452772.770833,"ahargana":1864307.2708,"kali_year":5105,"ayanamsa_lahiri":23.9,"grahas":{"sun":{"sidereal_longitude":27.995000000000005,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":164.18450000000007,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false,"latitude":3.623},"mars":{"sidereal_longitude":288.33349999999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":19.127700000000004,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":106.36500000000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"venus":{"sidereal_longitude":1.942799999999977,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":63.34100000000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":40.0291,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":220.0291,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2003,"month":5,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2452772.770833,"kali_year":5105,"ahargana":1864307.2708,"sun":{"sidereal_longitude":27.9842,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":166.3804,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":12,"name":"Dvādaśī","paksha":"Śukla","full_name":"Śukla Dvādaśī","elongation_degrees":138.3962,"elapsed_within_tithi_degrees":6.3962},"nakshatra":{"number":13,"name":"Hasta","pada":2,"moon_longitude":166.3804,"elapsed_within_degrees":6.3804},"yoga":{"number":15,"name":"Vajra","sum_longitude":194.3646},"karana":{"half_tithi_index":23,"name":"Bālava"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.623,"elongation":138.396},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.623,"opposition_distance":41.604}},"eclipse_window_40days":[{"offset_days":3,"type":"lunar","occurs":true,"moon_latitude":0.804,"opposition_distance":1.295},{"offset_days":18,"type":"solar","occurs":true,"moon_latitude":0.403,"elongation":0.968}]},"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":"06:02","sunsetLocal":"19:08","solarNoonLocal":"12:35","dayLengthHours":13.104155799136656,"dayLengthDisplay":"13 Hours 06 Mins 15 Secs","nightLengthDisplay":"10 Hours 53 Mins 45 Secs","moonriseLocal":"15:42","moonsetLocal":"03:37","rahuKala":{"name":"Rāhu Kāla","start":"15:51","end":"17:30","startHours":15.85807497072489,"endHours":17.496094445616972,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:18","end":"10:57","startHours":9.305997071156561,"endHours":10.944016546048644,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:35","end":"14:13","startHours":12.582036020940727,"endHours":14.22005549583281,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:05","end":"09:31","startHours":9.087594474504284,"endHours":9.52439966780884,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:35","end":"06:56","startHours":6.575964613003092,"endHours":6.925408767646736,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"13:01","startHours":12.145230827636171,"endHours":13.018841214245283,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:17","end":"05:09","startHours":4.2827373481541775,"endHours":5.156347734763288,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:56","end":"06:02","startHours":4.93794513811101,"endHours":6.029958121372398,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:46","end":"15:38","startHours":14.766061987463502,"endHours":15.639672374072612,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:56","end":"19:20","startHours":18.934113920509056,"endHours":19.334113920509054,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:08","end":"19:41","startHours":19.134113920509055,"endHours":19.68012041213975,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:53","end":"20:38","startHours":18.884113920509055,"endHours":20.634113920509055,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"01:01","startHours":24.145230827636173,"endHours":25.01884121424528,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"06:02","end":"07:40","startHours":6.029958121372398,"endHours":7.66797759626448,"quality":"inauspicious"},{"name":"Udveg","start":"07:40","end":"09:18","startHours":7.66797759626448,"endHours":9.305997071156561,"quality":"inauspicious"},{"name":"Chala","start":"09:18","end":"10:57","startHours":9.305997071156561,"endHours":10.944016546048644,"quality":"neutral"},{"name":"Labha","start":"10:57","end":"12:35","startHours":10.944016546048644,"endHours":12.582036020940727,"quality":"auspicious"},{"name":"Amṛta","start":"12:35","end":"14:13","startHours":12.582036020940727,"endHours":14.22005549583281,"quality":"auspicious"},{"name":"Kāla","start":"14:13","end":"15:51","startHours":14.22005549583281,"endHours":15.85807497072489,"quality":"inauspicious"},{"name":"Śubha","start":"15:51","end":"17:30","startHours":15.85807497072489,"endHours":17.496094445616972,"quality":"auspicious"},{"name":"Roga","start":"17:30","end":"19:08","startHours":17.496094445616972,"endHours":19.134113920509055,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"19:08","end":"20:30","startHours":19.134113920509055,"endHours":20.496094445616972,"quality":"inauspicious"},{"name":"Śubha","start":"20:30","end":"21:51","startHours":20.496094445616972,"endHours":21.858074970724893,"quality":"auspicious"},{"name":"Roga","start":"21:51","end":"23:13","startHours":21.858074970724893,"endHours":23.22005549583281,"quality":"inauspicious"},{"name":"Udveg","start":"23:13","end":"00:35","startHours":23.22005549583281,"endHours":24.582036020940727,"quality":"inauspicious"},{"name":"Chala","start":"00:35","end":"01:57","startHours":24.582036020940727,"endHours":25.944016546048644,"quality":"neutral"},{"name":"Labha","start":"01:57","end":"03:18","startHours":25.944016546048644,"endHours":27.30599707115656,"quality":"auspicious"},{"name":"Amṛta","start":"03:18","end":"04:40","startHours":27.30599707115656,"endHours":28.667977596264482,"quality":"auspicious"},{"name":"Kāla","start":"04:40","end":"06:02","startHours":28.667977596264482,"endHours":30.0299581213724,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:02","end":"07:02","startHours":6.029958121372398,"endHours":7.029958121372398,"planetary_lord":"Mars"},{"name":"Hora 2","start":"07:02","end":"08:02","startHours":7.029958121372398,"endHours":8.029958121372399,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"08:02","end":"09:02","startHours":8.029958121372399,"endHours":9.029958121372399,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"09:02","end":"10:02","startHours":9.029958121372399,"endHours":10.029958121372399,"planetary_lord":"Moon"},{"name":"Hora 5","start":"10:02","end":"11:02","startHours":10.029958121372399,"endHours":11.029958121372399,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"11:02","end":"12:02","startHours":11.029958121372399,"endHours":12.029958121372399,"planetary_lord":"Venus"},{"name":"Hora 7","start":"12:02","end":"13:02","startHours":12.029958121372399,"endHours":13.029958121372399,"planetary_lord":"Sun"},{"name":"Hora 8","start":"13:02","end":"14:02","startHours":13.029958121372399,"endHours":14.029958121372399,"planetary_lord":"Mars"},{"name":"Hora 9","start":"14:02","end":"15:02","startHours":14.029958121372399,"endHours":15.029958121372399,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"15:02","end":"16:02","startHours":15.029958121372399,"endHours":16.0299581213724,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"16:02","end":"17:02","startHours":16.0299581213724,"endHours":17.0299581213724,"planetary_lord":"Moon"},{"name":"Hora 12","start":"17:02","end":"18:02","startHours":17.0299581213724,"endHours":18.0299581213724,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"18:02","end":"19:02","startHours":18.0299581213724,"endHours":19.0299581213724,"planetary_lord":"Venus"},{"name":"Hora 14","start":"19:02","end":"20:02","startHours":19.0299581213724,"endHours":20.0299581213724,"planetary_lord":"Sun"},{"name":"Hora 15","start":"20:02","end":"21:02","startHours":20.0299581213724,"endHours":21.0299581213724,"planetary_lord":"Mars"},{"name":"Hora 16","start":"21:02","end":"22:02","startHours":21.0299581213724,"endHours":22.0299581213724,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"22:02","end":"23:02","startHours":22.0299581213724,"endHours":23.0299581213724,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"23:02","end":"00:02","startHours":23.0299581213724,"endHours":24.0299581213724,"planetary_lord":"Moon"},{"name":"Hora 19","start":"00:02","end":"01:02","startHours":24.0299581213724,"endHours":25.0299581213724,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"01:02","end":"02:02","startHours":25.0299581213724,"endHours":26.0299581213724,"planetary_lord":"Venus"},{"name":"Hora 21","start":"02:02","end":"03:02","startHours":26.0299581213724,"endHours":27.0299581213724,"planetary_lord":"Sun"},{"name":"Hora 22","start":"03:02","end":"04:02","startHours":27.0299581213724,"endHours":28.0299581213724,"planetary_lord":"Mars"},{"name":"Hora 23","start":"04:02","end":"05:02","startHours":28.0299581213724,"endHours":29.0299581213724,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"05:02","end":"06:02","startHours":29.0299581213724,"endHours":30.0299581213724,"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":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":18.238198489175055,"eotMinutes":3.7534387435564067,"ayanamsa":23.9}},"calendars":{"vikram_samvat":2060,"vikram_samvatsara":"Durmukhi","saka_samvat":1925,"saka_samvatsara":"Subhānu","bengali_samvat":1410,"malayalam_era":1179,"nanakshahi_year":534,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Dvādaśī · Vikram 2060 Durmukhi · Śaka 1925 Subhānu"},"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":"surat"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga May 13, 2003 CE · Surat, Gujarat · Vidhyamitra","description":"May 13, 2003 CE for Surat, Gujarat: Śukla Dvādaśī, sūryodaya 06:02, sūryāsta 19:08.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/surat/2003-05-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/surat/2003-05-13","sa":"https://sa.vidhyamitra.com/city/surat/2003-05-13","hi":"https://hi.vidhyamitra.com/city/surat/2003-05-13","x-default":"https://vidhyamitra.com/city/surat/2003-05-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-09-06T06:51:18.991Z","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":"2026-09-06T06:51:18.991Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-09-06T06:51:18.991Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no single city is the universal center.","purna_chain":["Hosted scripture","Named-tradition interpretation","Original Vidhyamitra contemplation","Bhūmi-born material medium","Vidhyamitra portal","Responsible reader in their own kṣetra"],"claim_boundary":"The legacy purna_chain field carries a source-to-reader sequence, not a revealed physical descent, universal cosmology, or proof that software is conscious.","antaryami_responsibility_formula":"Kṣīrodakaśāyī Viṣṇu = Paramātmā = Antaryāmī. Jīva desires. Prakṛti executes through guṇas. Paramātmā witnesses, permits, remembers, guides, and sustains. Bhagavān is the ultimate source.","source_anchors":[{"label":"BG 13.23","path":"/bhagavad-gita/13/23","meaning":"upadraṣṭā-anumantā · witness-permitter"},{"label":"BG 15.15","path":"/bhagavad-gita/15/15","meaning":"the Lord seated in every heart as memory, knowledge, and forgetting"},{"label":"BG 18.61","path":"/bhagavad-gita/18/61","meaning":"Īśvara seated in the heart of all beings"}],"nama_seal":"Hare Krishna Hare Krishna · Krishna Krishna Hare Hare · Hare Rama Hare Rama · Rama Rama Hare Hare"}}}