{"id":"vidhyamitra:city-day:surat:2000-09-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/surat/2000-09-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2000-09-13","date_display":"September 13, 2000 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":2000,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451800.770833,"kali_year":5102,"ahargana":1863335.2708,"sun":{"sidereal_longitude":145.9771,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":316.5894,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":170.6124,"elapsed_within_tithi_degrees":2.6124},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3,"moon_longitude":316.5894,"elapsed_within_degrees":9.9228},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":102.5665},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":2000,"month":9,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2451800.770833,"ahargana":1863335.2708,"kali_year":5102,"ayanamsa_lahiri":23.8628,"grahas":{"sun":{"sidereal_longitude":146.70193800000004,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":317.59943799999996,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false,"latitude":-3.1836},"mars":{"sidereal_longitude":123.57873799999999,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":164.22673800000007,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":46.88543800000002,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false},"venus":{"sidereal_longitude":171.96263799999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":37.050937999999974,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":91.5304,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":7,"name":"Punarvasu","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":271.5304,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"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":2000,"month":9,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2451800.770833,"kali_year":5102,"ahargana":1863335.2708,"sun":{"sidereal_longitude":145.9771,"rashi":5,"rashi_name":"Siṃha"},"moon":{"sidereal_longitude":316.5894,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":170.6124,"elapsed_within_tithi_degrees":2.6124},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3,"moon_longitude":316.5894,"elapsed_within_degrees":9.9228},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":102.5665},"karana":{"half_tithi_index":28,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.184,"elongation":170.612},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.184,"opposition_distance":9.388}},"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":"06:25","sunsetLocal":"18:43","solarNoonLocal":"12:34","dayLengthHours":12.312756730370019,"dayLengthDisplay":"12 Hours 18 Mins 46 Secs","nightLengthDisplay":"11 Hours 41 Mins 14 Secs","moonriseLocal":"18:06","moonsetLocal":"05:49","rahuKala":{"name":"Rāhu Kāla","start":"12:34","end":"14:06","startHours":12.565362151168898,"endHours":14.10445674246515,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:57","end":"09:29","startHours":7.948078377280141,"endHours":9.487172968576393,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:02","end":"12:34","startHours":11.026267559872647,"endHours":12.565362151168898,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:17","end":"09:42","startHours":9.281960356403559,"endHours":9.692385580749228,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:55","end":"07:15","startHours":6.922015316415973,"endHours":7.2503554958925065,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:09","end":"12:59","startHours":12.15493692682323,"endHours":12.975787375514566,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:46","end":"05:35","startHours":4.767282888601219,"endHours":5.588133337292554,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:23","end":"06:25","startHours":5.38292072511972,"endHours":6.408983785983889,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:37","end":"15:26","startHours":14.617488272897235,"endHours":15.43833872158857,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:31","end":"18:55","startHours":18.52174051635391,"endHours":18.921740516353907,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:43","end":"19:14","startHours":18.721740516353908,"endHours":19.23477204678599,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:28","end":"20:13","startHours":18.471740516353908,"endHours":20.221740516353908,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:09","end":"00:59","startHours":24.154936926823233,"endHours":24.975787375514564,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:25","end":"07:57","startHours":6.408983785983889,"endHours":7.948078377280141,"quality":"auspicious"},{"name":"Amṛta","start":"07:57","end":"09:29","startHours":7.948078377280141,"endHours":9.487172968576393,"quality":"auspicious"},{"name":"Kāla","start":"09:29","end":"11:02","startHours":9.487172968576393,"endHours":11.026267559872647,"quality":"inauspicious"},{"name":"Śubha","start":"11:02","end":"12:34","startHours":11.026267559872647,"endHours":12.565362151168898,"quality":"auspicious"},{"name":"Roga","start":"12:34","end":"14:06","startHours":12.565362151168898,"endHours":14.10445674246515,"quality":"inauspicious"},{"name":"Udveg","start":"14:06","end":"15:39","startHours":14.10445674246515,"endHours":15.643551333761403,"quality":"inauspicious"},{"name":"Chala","start":"15:39","end":"17:11","startHours":15.643551333761403,"endHours":17.182645925057656,"quality":"neutral"},{"name":"Labha","start":"17:11","end":"18:43","startHours":17.182645925057656,"endHours":18.721740516353908,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:43","end":"20:11","startHours":18.721740516353908,"endHours":20.182645925057656,"quality":"inauspicious"},{"name":"Chala","start":"20:11","end":"21:39","startHours":20.182645925057656,"endHours":21.6435513337614,"quality":"neutral"},{"name":"Labha","start":"21:39","end":"23:06","startHours":21.6435513337614,"endHours":23.10445674246515,"quality":"auspicious"},{"name":"Amṛta","start":"23:06","end":"00:34","startHours":23.10445674246515,"endHours":24.565362151168898,"quality":"auspicious"},{"name":"Kāla","start":"00:34","end":"02:02","startHours":24.565362151168898,"endHours":26.026267559872647,"quality":"inauspicious"},{"name":"Śubha","start":"02:02","end":"03:29","startHours":26.026267559872647,"endHours":27.487172968576395,"quality":"auspicious"},{"name":"Roga","start":"03:29","end":"04:57","startHours":27.487172968576395,"endHours":28.94807837728014,"quality":"inauspicious"},{"name":"Udveg","start":"04:57","end":"06:25","startHours":28.94807837728014,"endHours":30.40898378598389,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:25","end":"07:25","startHours":6.408983785983889,"endHours":7.408983785983889,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:25","end":"08:25","startHours":7.408983785983889,"endHours":8.408983785983889,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:25","end":"09:25","startHours":8.408983785983889,"endHours":9.408983785983889,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:25","end":"10:25","startHours":9.408983785983889,"endHours":10.408983785983889,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:25","end":"11:25","startHours":10.408983785983889,"endHours":11.408983785983889,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:25","end":"12:25","startHours":11.408983785983889,"endHours":12.408983785983889,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:25","end":"13:25","startHours":12.408983785983889,"endHours":13.408983785983889,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:25","end":"14:25","startHours":13.408983785983889,"endHours":14.408983785983889,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:25","end":"15:25","startHours":14.408983785983889,"endHours":15.408983785983889,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:25","end":"16:25","startHours":15.408983785983889,"endHours":16.40898378598389,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:25","end":"17:25","startHours":16.40898378598389,"endHours":17.40898378598389,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:25","end":"18:25","startHours":17.40898378598389,"endHours":18.40898378598389,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:25","end":"19:25","startHours":18.40898378598389,"endHours":19.40898378598389,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:25","end":"20:25","startHours":19.40898378598389,"endHours":20.40898378598389,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:25","end":"21:25","startHours":20.40898378598389,"endHours":21.40898378598389,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:25","end":"22:25","startHours":21.40898378598389,"endHours":22.40898378598389,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:25","end":"23:25","startHours":22.40898378598389,"endHours":23.40898378598389,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:25","end":"00:25","startHours":23.40898378598389,"endHours":24.40898378598389,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:25","end":"01:25","startHours":24.40898378598389,"endHours":25.40898378598389,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:25","end":"02:25","startHours":25.40898378598389,"endHours":26.40898378598389,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:25","end":"03:25","startHours":26.40898378598389,"endHours":27.40898378598389,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:25","end":"04:25","startHours":27.40898378598389,"endHours":28.40898378598389,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:25","end":"05:25","startHours":28.40898378598389,"endHours":29.40898378598389,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:25","end":"06:25","startHours":29.40898378598389,"endHours":30.40898378598389,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"South","rahuVasa":"South-West","anandadiYoga":{"name":"Śrīvatsa","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":3.7384237853749434,"eotMinutes":4.753870929866006,"ayanamsa":23.8628}},"calendars":{"vikram_samvat":2057,"vikram_samvatsara":"Vijaya","saka_samvat":1922,"saka_samvatsara":"Vikrama","bengali_samvat":1407,"malayalam_era":1176,"nanakshahi_year":531,"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 Pūrṇimā · Vikram 2057 Vijaya · Śaka 1922 Vikrama"},"festivals":[],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — 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 September 13, 2000 CE · Surat, Gujarat · Vidhyamitra","description":"September 13, 2000 CE for Surat, Gujarat: Śukla Pūrṇimā, sūryodaya 06:25, sūryāsta 18:43.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/surat/2000-09-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/surat/2000-09-13","sa":"https://sa.vidhyamitra.com/city/surat/2000-09-13","hi":"https://hi.vidhyamitra.com/city/surat/2000-09-13","x-default":"https://vidhyamitra.com/city/surat/2000-09-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-09-06T07:16:22.023Z","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":"2026-09-06T07:16:22.023Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-09-06T07:16:22.023Z","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"}}}