{"id":"vidhyamitra:city-day:kanchipuram:2021-09-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/kanchipuram/2021-09-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2021-09-18","date_display":"September 18, 2021 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":2021,"month":9,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459475.770833,"kali_year":5123,"ahargana":1871010.2708,"sun":{"sidereal_longitude":150.4183,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":294.8761,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":144.4578,"elapsed_within_tithi_degrees":0.4578},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1,"moon_longitude":294.8761,"elapsed_within_degrees":1.5427},"yoga":{"number":7,"name":"Sukarma","sum_longitude":85.2943},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2021,"month":9,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2459475.770833,"ahargana":1871010.2708,"kali_year":5123,"ayanamsa_lahiri":24.1563,"grahas":{"sun":{"sidereal_longitude":151.20399700000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":295.03739700000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1},"retrograde":false,"latitude":-4.2282},"mars":{"sidereal_longitude":157.47259699999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":177.27079700000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":299.61249699999996,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":193.80959699999994,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":283.18869700000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":44.8719,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":224.8719,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","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":"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":2021,"month":9,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459475.770833,"kali_year":5123,"ahargana":1871010.2708,"sun":{"sidereal_longitude":150.4183,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":294.8761,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":144.4578,"elapsed_within_tithi_degrees":0.4578},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":1,"moon_longitude":294.8761,"elapsed_within_degrees":1.5427},"yoga":{"number":7,"name":"Sukarma","sum_longitude":85.2943},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.228,"elongation":144.458},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.228,"opposition_distance":35.542}},"eclipse_window_40days":[]},"city":{"slug":"kanchipuram","name":"Kāñcīpuram","lat":12.8342,"lon":79.7036,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"kanchipuram","name":"Kāñcīpuram","lat":12.8342,"lon":79.7036,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tirtha"},"sunriseLocal":"05:59","sunsetLocal":"18:10","solarNoonLocal":"12:05","dayLengthHours":12.170004542208325,"dayLengthDisplay":"12 Hours 10 Mins 12 Secs","nightLengthDisplay":"11 Hours 49 Mins 48 Secs","moonriseLocal":"15:51","moonsetLocal":"03:28","rahuKala":{"name":"Rāhu Kāla","start":"09:02","end":"10:33","startHours":9.033758494886676,"endHours":10.555009062662718,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:36","end":"15:07","startHours":13.597510198214799,"endHours":15.118760765990839,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:59","end":"07:31","startHours":5.991257359334596,"endHours":7.5125079271106365,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:50","end":"09:14","startHours":8.830925085849872,"endHours":9.236591903923483,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:30","end":"06:49","startHours":6.49834088192661,"endHours":6.822874336385499,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:40","end":"12:29","startHours":11.670592812365149,"endHours":12.48192644851237,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:22","end":"05:11","startHours":4.368590087040152,"endHours":5.1799237231873745,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:59","end":"05:59","startHours":4.977090314150569,"endHours":5.991257359334596,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:06","end":"14:55","startHours":14.104593720806811,"endHours":14.915927356954032,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:58","end":"18:22","startHours":17.961261901542922,"endHours":18.36126190154292,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:10","end":"18:40","startHours":18.16126190154292,"endHours":18.668345424134934,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:55","end":"19:40","startHours":17.91126190154292,"endHours":19.66126190154292,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:40","end":"00:29","startHours":23.670592812365147,"endHours":24.48192644851237,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:59","end":"07:31","startHours":5.991257359334596,"endHours":7.5125079271106365,"quality":"inauspicious"},{"name":"Śubha","start":"07:31","end":"09:02","startHours":7.5125079271106365,"endHours":9.033758494886676,"quality":"auspicious"},{"name":"Roga","start":"09:02","end":"10:33","startHours":9.033758494886676,"endHours":10.555009062662718,"quality":"inauspicious"},{"name":"Udveg","start":"10:33","end":"12:05","startHours":10.555009062662718,"endHours":12.07625963043876,"quality":"inauspicious"},{"name":"Chala","start":"12:05","end":"13:36","startHours":12.07625963043876,"endHours":13.597510198214799,"quality":"neutral"},{"name":"Labha","start":"13:36","end":"15:07","startHours":13.597510198214799,"endHours":15.118760765990839,"quality":"auspicious"},{"name":"Amṛta","start":"15:07","end":"16:38","startHours":15.118760765990839,"endHours":16.640011333766882,"quality":"auspicious"},{"name":"Kāla","start":"16:38","end":"18:10","startHours":16.640011333766882,"endHours":18.16126190154292,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:10","end":"19:38","startHours":18.16126190154292,"endHours":19.640011333766882,"quality":"auspicious"},{"name":"Amṛta","start":"19:38","end":"21:07","startHours":19.640011333766882,"endHours":21.118760765990842,"quality":"auspicious"},{"name":"Kāla","start":"21:07","end":"22:36","startHours":21.118760765990842,"endHours":22.5975101982148,"quality":"inauspicious"},{"name":"Śubha","start":"22:36","end":"00:05","startHours":22.5975101982148,"endHours":24.07625963043876,"quality":"auspicious"},{"name":"Roga","start":"00:05","end":"01:33","startHours":24.07625963043876,"endHours":25.55500906266272,"quality":"inauspicious"},{"name":"Udveg","start":"01:33","end":"03:02","startHours":25.55500906266272,"endHours":27.033758494886676,"quality":"inauspicious"},{"name":"Chala","start":"03:02","end":"04:31","startHours":27.033758494886676,"endHours":28.512507927110637,"quality":"neutral"},{"name":"Labha","start":"04:31","end":"05:59","startHours":28.512507927110637,"endHours":29.991257359334597,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:59","end":"06:59","startHours":5.991257359334596,"endHours":6.991257359334596,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:59","end":"07:59","startHours":6.991257359334596,"endHours":7.991257359334596,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:59","end":"08:59","startHours":7.991257359334596,"endHours":8.991257359334597,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:59","end":"09:59","startHours":8.991257359334597,"endHours":9.991257359334597,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:59","end":"10:59","startHours":9.991257359334597,"endHours":10.991257359334597,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:59","end":"11:59","startHours":10.991257359334597,"endHours":11.991257359334597,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:59","end":"12:59","startHours":11.991257359334597,"endHours":12.991257359334597,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:59","end":"13:59","startHours":12.991257359334597,"endHours":13.991257359334597,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:59","end":"14:59","startHours":13.991257359334597,"endHours":14.991257359334597,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:59","end":"15:59","startHours":14.991257359334597,"endHours":15.991257359334597,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:59","end":"16:59","startHours":15.991257359334597,"endHours":16.991257359334597,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:59","end":"17:59","startHours":16.991257359334597,"endHours":17.991257359334597,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:59","end":"18:59","startHours":17.991257359334597,"endHours":18.991257359334597,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:59","end":"19:59","startHours":18.991257359334597,"endHours":19.991257359334597,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:59","end":"20:59","startHours":19.991257359334597,"endHours":20.991257359334597,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:59","end":"21:59","startHours":20.991257359334597,"endHours":21.991257359334597,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:59","end":"22:59","startHours":21.991257359334597,"endHours":22.991257359334597,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:59","end":"23:59","startHours":22.991257359334597,"endHours":23.991257359334597,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:59","end":"00:59","startHours":23.991257359334597,"endHours":24.991257359334597,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:59","end":"01:59","startHours":24.991257359334597,"endHours":25.991257359334597,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:59","end":"02:59","startHours":25.991257359334597,"endHours":26.991257359334597,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:59","end":"03:59","startHours":26.991257359334597,"endHours":27.991257359334597,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:59","end":"04:59","startHours":27.991257359334597,"endHours":28.991257359334597,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:59","end":"05:59","startHours":28.991257359334597,"endHours":29.991257359334597,"planetary_lord":"Mercury"}],"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":"East (Pūrva)","chandraVasa":"South-East","rahuVasa":"East","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"tropicalRitu":"Varṣā (Monsoon)","vedicRitu":"Varṣā (Monsoon)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":1.8436624891715265,"eotMinutes":6.610022173674397,"ayanamsa":24.1563}},"calendars":{"vikram_samvat":2078,"vikram_samvatsara":"Ānanda","saka_samvat":1943,"saka_samvatsara":"Plava","bengali_samvat":1428,"malayalam_era":1197,"nanakshahi_year":552,"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":"Kanyā (Puraṭṭāsi)","ritu":"Varṣā (Monsoon)","display_summary":"Bhādrapada Śukla Trayodaśī · Vikram 2078 Ānanda · Śaka 1943 Plava"},"festivals":[{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Dedicated festival walk for Pradoṣa Vrata is not live yet; Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"kanchipuram"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga September 18, 2021 CE · Kāñcīpuram · Vidhyamitra","description":"September 18, 2021 CE for Kāñcīpuram: Śukla Trayodaśī, sūryodaya 05:59, sūryāsta 18:10.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/kanchipuram/2021-09-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/kanchipuram/2021-09-18","sa":"https://sa.vidhyamitra.com/city/kanchipuram/2021-09-18","hi":"https://hi.vidhyamitra.com/city/kanchipuram/2021-09-18","x-default":"https://vidhyamitra.com/city/kanchipuram/2021-09-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-08-25T16:35:36.584Z","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":"2026-08-25T16:35:36.584Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-08-25T16:35:36.584Z","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"}}}