{"id":"vidhyamitra:city-day:surat:2011-12-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/surat/2011-12-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2011-12-01","date_display":"December 1, 2011 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":2011,"month":12,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455896.770833,"kali_year":5113,"ahargana":1867431.2708,"sun":{"sidereal_longitude":223.9244,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":296.7633,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":72.839,"elapsed_within_tithi_degrees":0.839},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2,"moon_longitude":296.7633,"elapsed_within_degrees":3.43},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":160.6877},"karana":{"half_tithi_index":12,"name":"Gara"},"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":2011,"month":12,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455896.770833,"ahargana":1867431.2708,"kali_year":5113,"ayanamsa_lahiri":24.0194,"grahas":{"sun":{"sidereal_longitude":224.458441,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":298.846041,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false,"latitude":3.9819},"mars":{"sidereal_longitude":135.14174100000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":232.12254099999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":7.255840999999975,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":true},"venus":{"sidereal_longitude":251.4227410000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":181.431241,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":234.5046,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":54.5046,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1},"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":2011,"month":12,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455896.770833,"kali_year":5113,"ahargana":1867431.2708,"sun":{"sidereal_longitude":223.9244,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":296.7633,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":72.839,"elapsed_within_tithi_degrees":0.839},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2,"moon_longitude":296.7633,"elapsed_within_degrees":3.43},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":160.6877},"karana":{"half_tithi_index":12,"name":"Gara"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.982,"elongation":72.839},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.982,"opposition_distance":107.161}},"eclipse_window_40days":[{"offset_days":-6,"type":"solar","occurs":true,"moon_latitude":-1.467,"elongation":2.03}]},"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":"07:00","sunsetLocal":"17:57","solarNoonLocal":"12:29","dayLengthHours":10.946567117451707,"dayLengthDisplay":"10 Hours 56 Mins 48 Secs","nightLengthDisplay":"13 Hours 03 Mins 12 Secs","moonriseLocal":"11:45","moonsetLocal":"23:07","rahuKala":{"name":"Rāhu Kāla","start":"13:51","end":"15:13","startHours":13.84406337967479,"endHours":15.212384269356253,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:00","end":"08:22","startHours":7.002458931267472,"endHours":8.370779820948936,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:44","end":"11:06","startHours":9.7391007106304,"endHours":11.107421600311863,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:33","end":"09:55","startHours":9.556657925339536,"endHours":9.92154349592126,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:28","end":"07:45","startHours":7.458565894494626,"endHours":7.750474350960005,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:07","end":"12:50","startHours":12.110856919411603,"endHours":12.84062806057505,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:33","end":"06:16","startHours":5.542916648940578,"endHours":6.272687790104024,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:05","end":"07:00","startHours":6.090245004813163,"endHours":7.002458931267472,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:18","end":"15:02","startHours":14.300170342901943,"endHours":15.02994148406539,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:45","end":"18:09","startHours":17.74902604871918,"endHours":18.14902604871918,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:57","end":"18:24","startHours":17.94902604871918,"endHours":18.405133011946333,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:42","end":"19:27","startHours":17.69902604871918,"endHours":19.44902604871918,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:07","end":"00:50","startHours":24.110856919411603,"endHours":24.84062806057505,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"07:00","end":"08:22","startHours":7.002458931267472,"endHours":8.370779820948936,"quality":"auspicious"},{"name":"Roga","start":"08:22","end":"09:44","startHours":8.370779820948936,"endHours":9.7391007106304,"quality":"inauspicious"},{"name":"Udveg","start":"09:44","end":"11:06","startHours":9.7391007106304,"endHours":11.107421600311863,"quality":"inauspicious"},{"name":"Chala","start":"11:06","end":"12:29","startHours":11.107421600311863,"endHours":12.475742489993326,"quality":"neutral"},{"name":"Labha","start":"12:29","end":"13:51","startHours":12.475742489993326,"endHours":13.84406337967479,"quality":"auspicious"},{"name":"Amṛta","start":"13:51","end":"15:13","startHours":13.84406337967479,"endHours":15.212384269356253,"quality":"auspicious"},{"name":"Kāla","start":"15:13","end":"16:35","startHours":15.212384269356253,"endHours":16.580705159037716,"quality":"inauspicious"},{"name":"Śubha","start":"16:35","end":"17:57","startHours":16.580705159037716,"endHours":17.94902604871918,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"17:57","end":"19:35","startHours":17.94902604871918,"endHours":19.580705159037716,"quality":"auspicious"},{"name":"Kāla","start":"19:35","end":"21:13","startHours":19.580705159037716,"endHours":21.212384269356253,"quality":"inauspicious"},{"name":"Śubha","start":"21:13","end":"22:51","startHours":21.212384269356253,"endHours":22.84406337967479,"quality":"auspicious"},{"name":"Roga","start":"22:51","end":"00:29","startHours":22.84406337967479,"endHours":24.475742489993326,"quality":"inauspicious"},{"name":"Udveg","start":"00:29","end":"02:06","startHours":24.475742489993326,"endHours":26.107421600311863,"quality":"inauspicious"},{"name":"Chala","start":"02:06","end":"03:44","startHours":26.107421600311863,"endHours":27.7391007106304,"quality":"neutral"},{"name":"Labha","start":"03:44","end":"05:22","startHours":27.7391007106304,"endHours":29.370779820948936,"quality":"auspicious"},{"name":"Amṛta","start":"05:22","end":"07:00","startHours":29.370779820948936,"endHours":31.002458931267473,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:00","end":"08:00","startHours":7.002458931267472,"endHours":8.002458931267473,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"08:00","end":"09:00","startHours":8.002458931267473,"endHours":9.002458931267473,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"09:00","end":"10:00","startHours":9.002458931267473,"endHours":10.002458931267473,"planetary_lord":"Moon"},{"name":"Hora 4","start":"10:00","end":"11:00","startHours":10.002458931267473,"endHours":11.002458931267473,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"11:00","end":"12:00","startHours":11.002458931267473,"endHours":12.002458931267473,"planetary_lord":"Venus"},{"name":"Hora 6","start":"12:00","end":"13:00","startHours":12.002458931267473,"endHours":13.002458931267473,"planetary_lord":"Sun"},{"name":"Hora 7","start":"13:00","end":"14:00","startHours":13.002458931267473,"endHours":14.002458931267473,"planetary_lord":"Mars"},{"name":"Hora 8","start":"14:00","end":"15:00","startHours":14.002458931267473,"endHours":15.002458931267473,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"15:00","end":"16:00","startHours":15.002458931267473,"endHours":16.002458931267473,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"16:00","end":"17:00","startHours":16.002458931267473,"endHours":17.002458931267473,"planetary_lord":"Moon"},{"name":"Hora 11","start":"17:00","end":"18:00","startHours":17.002458931267473,"endHours":18.002458931267473,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"18:00","end":"19:00","startHours":18.002458931267473,"endHours":19.002458931267473,"planetary_lord":"Venus"},{"name":"Hora 13","start":"19:00","end":"20:00","startHours":19.002458931267473,"endHours":20.002458931267473,"planetary_lord":"Sun"},{"name":"Hora 14","start":"20:00","end":"21:00","startHours":20.002458931267473,"endHours":21.002458931267473,"planetary_lord":"Mars"},{"name":"Hora 15","start":"21:00","end":"22:00","startHours":21.002458931267473,"endHours":22.002458931267473,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"22:00","end":"23:00","startHours":22.002458931267473,"endHours":23.002458931267473,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"23:00","end":"00:00","startHours":23.002458931267473,"endHours":24.002458931267473,"planetary_lord":"Moon"},{"name":"Hora 18","start":"00:00","end":"01:00","startHours":24.002458931267473,"endHours":25.002458931267473,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"01:00","end":"02:00","startHours":25.002458931267473,"endHours":26.002458931267473,"planetary_lord":"Venus"},{"name":"Hora 20","start":"02:00","end":"03:00","startHours":26.002458931267473,"endHours":27.002458931267473,"planetary_lord":"Sun"},{"name":"Hora 21","start":"03:00","end":"04:00","startHours":27.002458931267473,"endHours":28.002458931267473,"planetary_lord":"Mars"},{"name":"Hora 22","start":"04:00","end":"05:00","startHours":28.002458931267473,"endHours":29.002458931267473,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"05:00","end":"06:00","startHours":29.002458931267473,"endHours":30.002458931267473,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"06:00","end":"07:00","startHours":30.002458931267473,"endHours":31.002458931267473,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"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":"South (Dakṣiṇa)","chandraVasa":"South-East","rahuVasa":"North-West","anandadiYoga":{"name":"Chatra","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-21.715670666209046,"eotMinutes":10.131050600400467,"ayanamsa":24.0194}},"calendars":{"vikram_samvat":2068,"vikram_samvatsara":"Krodhi","saka_samvat":1933,"saka_samvatsara":"Khara","bengali_samvat":1418,"malayalam_era":1187,"nanakshahi_year":542,"lunar_month":"Mārgaśīrṣa","lunar_month_paksha_full":"Mārgaśīrṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Mārgaśīrṣa","lunar_month_amanta":"Mārgaśīrṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Mārgaśīrṣa Śukla Saptamī · Vikram 2068 Krodhi · Śaka 1933 Khara"},"festivals":[],"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":[]},"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 December 1, 2011 CE · Surat, Gujarat · Vidhyamitra","description":"December 1, 2011 CE for Surat, Gujarat: Śukla Saptamī, sūryodaya 07:00, sūryāsta 17:57.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/surat/2011-12-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/surat/2011-12-01","sa":"https://sa.vidhyamitra.com/city/surat/2011-12-01","hi":"https://hi.vidhyamitra.com/city/surat/2011-12-01","x-default":"https://vidhyamitra.com/city/surat/2011-12-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T12:47:48.391Z","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":"2026-05-31T12:47:48.391Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T12:47:48.391Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}