{"id":"vidhyamitra:city-day:thane:1921-10-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/thane/1921-10-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1921-10-01","date_display":"October 1, 1921 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":1921,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2422963.770833,"kali_year":5023,"ahargana":1834498.2708,"sun":{"sidereal_longitude":163.9988,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":158.9767,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":354.9779,"elapsed_within_tithi_degrees":6.9779},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4,"moon_longitude":158.9767,"elapsed_within_degrees":12.31},"yoga":{"number":25,"name":"Brahma","sum_longitude":322.9755},"karana":{"half_tithi_index":59,"name":"Nāga"},"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":1921,"month":10,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2422963.770833,"ahargana":1834498.2708,"kali_year":5023,"ayanamsa_lahiri":22.7599,"grahas":{"sun":{"sidereal_longitude":164.55492300000003,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":false},"moon":{"sidereal_longitude":158.021123,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false,"latitude":-1.5728},"mars":{"sidereal_longitude":135.571323,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":190.068623,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":159.17212300000006,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":134.256623,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":156.68312300000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":179.4534,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":359.4534,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","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":1921,"month":10,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2422963.770833,"kali_year":5023,"ahargana":1834498.2708,"sun":{"sidereal_longitude":163.9988,"rashi":6,"rashi_name":"Kanyā"},"moon":{"sidereal_longitude":158.9767,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":30,"name":"Amāvasyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Amāvasyā","elongation_degrees":354.9779,"elapsed_within_tithi_degrees":6.9779},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4,"moon_longitude":158.9767,"elapsed_within_degrees":12.31},"yoga":{"number":25,"name":"Brahma","sum_longitude":322.9755},"karana":{"half_tithi_index":59,"name":"Nāga"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.573,"elongation":5.022},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.573,"opposition_distance":174.978}},"eclipse_window_40days":[{"offset_days":16,"type":"lunar","occurs":true,"moon_latitude":-0.146,"opposition_distance":0.642}]},"city":{"slug":"thane","name":"Thane, Maharashtra","lat":19.2183,"lon":72.9781,"tz_offset_hours":5.5,"state":"Maharashtra","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"thane","name":"Thane, Maharashtra","lat":19.2183,"lon":72.9781,"tz_offset_hours":5.5,"state":"Maharashtra","country":"IN","tier":"tier-1"},"sunriseLocal":"06:27","sunsetLocal":"18:26","solarNoonLocal":"12:27","dayLengthHours":11.982737991641775,"dayLengthDisplay":"11 Hours 58 Mins 58 Secs","nightLengthDisplay":"12 Hours 01 Mins 02 Secs","moonriseLocal":"05:59","moonsetLocal":"18:03","rahuKala":{"name":"Rāhu Kāla","start":"09:27","end":"10:57","startHours":9.45297943231315,"endHours":10.950821681268371,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:57","end":"15:27","startHours":13.946506179178815,"endHours":15.444348428134036,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:27","end":"07:57","startHours":6.4572949344027055,"endHours":7.955137183357928,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:15","end":"09:39","startHours":9.253267132452454,"endHours":9.652691732173846,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:57","end":"07:17","startHours":6.956575684054446,"endHours":7.27611536383156,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:03","end":"12:51","startHours":12.0492393305022,"endHours":12.848088529944985,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:52","end":"05:40","startHours":4.859596535517135,"endHours":5.658445734959921,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:28","end":"06:27","startHours":5.458733435099225,"endHours":6.4572949344027055,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:27","end":"15:15","startHours":14.445786928830556,"endHours":15.24463612827334,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:14","end":"18:38","startHours":18.24003292604448,"endHours":18.64003292604448,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:26","end":"18:56","startHours":18.44003292604448,"endHours":18.939313675696223,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:11","end":"19:56","startHours":18.19003292604448,"endHours":19.94003292604448,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:03","end":"00:51","startHours":24.0492393305022,"endHours":24.848088529944985,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:27","end":"07:57","startHours":6.4572949344027055,"endHours":7.955137183357928,"quality":"inauspicious"},{"name":"Śubha","start":"07:57","end":"09:27","startHours":7.955137183357928,"endHours":9.45297943231315,"quality":"auspicious"},{"name":"Roga","start":"09:27","end":"10:57","startHours":9.45297943231315,"endHours":10.950821681268371,"quality":"inauspicious"},{"name":"Udveg","start":"10:57","end":"12:27","startHours":10.950821681268371,"endHours":12.448663930223592,"quality":"inauspicious"},{"name":"Chala","start":"12:27","end":"13:57","startHours":12.448663930223592,"endHours":13.946506179178815,"quality":"neutral"},{"name":"Labha","start":"13:57","end":"15:27","startHours":13.946506179178815,"endHours":15.444348428134036,"quality":"auspicious"},{"name":"Amṛta","start":"15:27","end":"16:57","startHours":15.444348428134036,"endHours":16.942190677089258,"quality":"auspicious"},{"name":"Kāla","start":"16:57","end":"18:26","startHours":16.942190677089258,"endHours":18.44003292604448,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:26","end":"19:57","startHours":18.44003292604448,"endHours":19.942190677089258,"quality":"auspicious"},{"name":"Amṛta","start":"19:57","end":"21:27","startHours":19.942190677089258,"endHours":21.444348428134038,"quality":"auspicious"},{"name":"Kāla","start":"21:27","end":"22:57","startHours":21.444348428134038,"endHours":22.946506179178815,"quality":"inauspicious"},{"name":"Śubha","start":"22:57","end":"00:27","startHours":22.946506179178815,"endHours":24.448663930223592,"quality":"auspicious"},{"name":"Roga","start":"00:27","end":"01:57","startHours":24.448663930223592,"endHours":25.950821681268373,"quality":"inauspicious"},{"name":"Udveg","start":"01:57","end":"03:27","startHours":25.950821681268373,"endHours":27.45297943231315,"quality":"inauspicious"},{"name":"Chala","start":"03:27","end":"04:57","startHours":27.45297943231315,"endHours":28.955137183357927,"quality":"neutral"},{"name":"Labha","start":"04:57","end":"06:27","startHours":28.955137183357927,"endHours":30.457294934402704,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:27","end":"07:27","startHours":6.4572949344027055,"endHours":7.4572949344027055,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:27","end":"08:27","startHours":7.4572949344027055,"endHours":8.457294934402706,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:27","end":"09:27","startHours":8.457294934402706,"endHours":9.457294934402706,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:27","end":"10:27","startHours":9.457294934402706,"endHours":10.457294934402706,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:27","end":"11:27","startHours":10.457294934402706,"endHours":11.457294934402706,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:27","end":"12:27","startHours":11.457294934402706,"endHours":12.457294934402706,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:27","end":"13:27","startHours":12.457294934402706,"endHours":13.457294934402706,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:27","end":"14:27","startHours":13.457294934402706,"endHours":14.457294934402706,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:27","end":"15:27","startHours":14.457294934402706,"endHours":15.457294934402706,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:27","end":"16:27","startHours":15.457294934402706,"endHours":16.457294934402704,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:27","end":"17:27","startHours":16.457294934402704,"endHours":17.457294934402704,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:27","end":"18:27","startHours":17.457294934402704,"endHours":18.457294934402704,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:27","end":"19:27","startHours":18.457294934402704,"endHours":19.457294934402704,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:27","end":"20:27","startHours":19.457294934402704,"endHours":20.457294934402704,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:27","end":"21:27","startHours":20.457294934402704,"endHours":21.457294934402704,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:27","end":"22:27","startHours":21.457294934402704,"endHours":22.457294934402704,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:27","end":"23:27","startHours":22.457294934402704,"endHours":23.457294934402704,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:27","end":"00:27","startHours":23.457294934402704,"endHours":24.457294934402704,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:27","end":"01:27","startHours":24.457294934402704,"endHours":25.457294934402704,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:27","end":"02:27","startHours":25.457294934402704,"endHours":26.457294934402704,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:27","end":"03:27","startHours":26.457294934402704,"endHours":27.457294934402704,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:27","end":"04:27","startHours":27.457294934402704,"endHours":28.457294934402704,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:27","end":"05:27","startHours":28.457294934402704,"endHours":29.457294934402704,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:27","end":"06:27","startHours":29.457294934402704,"endHours":30.457294934402704,"planetary_lord":"Mercury"}],"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":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-West","rahuVasa":"East","anandadiYoga":{"name":"Śrīvatsa","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":-2.9026872432293134,"eotMinutes":11.167764186584405,"ayanamsa":22.7599}},"calendars":{"vikram_samvat":1978,"vikram_samvatsara":"Bhāva","saka_samvat":1843,"saka_samvatsara":"Durmati","bengali_samvat":1328,"malayalam_era":1097,"nanakshahi_year":452,"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 Amāvasyā · Vikram 1978 Bhāva · Śaka 1843 Durmati"},"festivals":[{"id":"mahalaya-amavasya","name":"Mahālaya Amāvasyā (Sarvapitṛ Amāvasyā)","name_sanskrit":"महालय अमावस्या","tradition":"Pan-Hindu","associated_deity":"Pitṛ-deva","significance":"Final day of Pitṛ-Pakṣa; tarpaṇa for all ancestors.","vrata":true,"detection":{"tithi_number":30,"tithi_paksha":"Kṛṣṇa","lunar_month":"Āśvina"},"precedence":1}],"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":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Kṛṣṇa Amāvasyā","url":"/day/-3137-10-20","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"thane"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga October 1, 1921 CE · Thane, Maharashtra · Vidhyamitra","description":"October 1, 1921 CE for Thane, Maharashtra: Kṛṣṇa Amāvasyā, sūryodaya 06:27, sūryāsta 18:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/thane/1921-10-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/thane/1921-10-01","sa":"https://sa.vidhyamitra.com/city/thane/1921-10-01","hi":"https://hi.vidhyamitra.com/city/thane/1921-10-01","x-default":"https://vidhyamitra.com/city/thane/1921-10-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T01:04:37.917Z","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":"2026-06-02T01:04:37.917Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T01:04:37.917Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}