{"id":"vidhyamitra:city-day:thane:2101-03-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/thane/2101-03-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2101-03-13","date_display":"March 13, 2101 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":2101,"month":3,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488505.770833,"kali_year":5202,"ahargana":1900040.2708,"sun":{"sidereal_longitude":326.9613,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":113.3496,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":146.3883,"elapsed_within_tithi_degrees":2.3883},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3,"moon_longitude":113.3496,"elapsed_within_degrees":6.6829},"yoga":{"number":7,"name":"Sukarma","sum_longitude":80.3108},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":2101,"month":3,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2488505.770833,"ahargana":1900040.2708,"kali_year":5202,"ayanamsa_lahiri":25.2666,"grahas":{"sun":{"sidereal_longitude":327.022337,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":113.74383699999998,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":3},"retrograde":false,"latitude":1.0398},"mars":{"sidereal_longitude":279.333537,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":308.34373700000003,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":207.11343699999998,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":328.235737,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":191.64123700000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":306.7228,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":126.7228,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","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":"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":2101,"month":3,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488505.770833,"kali_year":5202,"ahargana":1900040.2708,"sun":{"sidereal_longitude":326.9613,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":113.3496,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":146.3883,"elapsed_within_tithi_degrees":2.3883},"nakshatra":{"number":9,"name":"Āśleṣā","pada":3,"moon_longitude":113.3496,"elapsed_within_degrees":6.6829},"yoga":{"number":7,"name":"Sukarma","sum_longitude":80.3108},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.04,"elongation":146.388},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.04,"opposition_distance":33.612}},"eclipse_window_40days":[{"offset_days":-13,"type":"solar","occurs":true,"moon_latitude":0.593,"elongation":1.085}]},"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":"06:49","sunsetLocal":"18:48","solarNoonLocal":"12:48","dayLengthHours":11.975463015715853,"dayLengthDisplay":"11 Hours 58 Mins 32 Secs","nightLengthDisplay":"12 Hours 01 Mins 28 Secs","moonriseLocal":"16:11","moonsetLocal":"04:59","rahuKala":{"name":"Rāhu Kāla","start":"17:18","end":"18:48","startHours":17.295890629706925,"endHours":18.792823506671407,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:48","end":"14:18","startHours":12.80509199881348,"endHours":14.302024875777962,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:48","end":"17:18","startHours":15.798957752742442,"endHours":17.295890629706925,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:37","end":"10:01","startHours":9.611635194622586,"endHours":10.010817295146447,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:19","end":"07:38","startHours":7.316338116610381,"endHours":7.63568379702947,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:24","end":"13:12","startHours":12.40590989828962,"endHours":13.204274099337342,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:13","end":"06:01","startHours":5.220632088860106,"endHours":6.01899628990783,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:49","end":"06:49","startHours":5.819405239645899,"endHours":6.817360490955553,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:48","end":"15:36","startHours":14.801002501432789,"endHours":15.599366702480513,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:36","end":"19:00","startHours":18.592823506671408,"endHours":18.992823506671407,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:48","end":"19:18","startHours":18.792823506671407,"endHours":19.291801132326235,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:33","end":"20:18","startHours":18.542823506671407,"endHours":20.292823506671407,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:24","end":"01:12","startHours":24.405909898289618,"endHours":25.204274099337344,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:49","end":"08:19","startHours":6.817360490955553,"endHours":8.314293367920035,"quality":"inauspicious"},{"name":"Chala","start":"08:19","end":"09:49","startHours":8.314293367920035,"endHours":9.811226244884516,"quality":"neutral"},{"name":"Labha","start":"09:49","end":"11:18","startHours":9.811226244884516,"endHours":11.308159121848998,"quality":"auspicious"},{"name":"Amṛta","start":"11:18","end":"12:48","startHours":11.308159121848998,"endHours":12.80509199881348,"quality":"auspicious"},{"name":"Kāla","start":"12:48","end":"14:18","startHours":12.80509199881348,"endHours":14.302024875777962,"quality":"inauspicious"},{"name":"Śubha","start":"14:18","end":"15:48","startHours":14.302024875777962,"endHours":15.798957752742442,"quality":"auspicious"},{"name":"Roga","start":"15:48","end":"17:18","startHours":15.798957752742442,"endHours":17.295890629706925,"quality":"inauspicious"},{"name":"Udveg","start":"17:18","end":"18:48","startHours":17.295890629706925,"endHours":18.792823506671407,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:48","end":"20:18","startHours":18.792823506671407,"endHours":20.295890629706925,"quality":"auspicious"},{"name":"Roga","start":"20:18","end":"21:48","startHours":20.295890629706925,"endHours":21.798957752742446,"quality":"inauspicious"},{"name":"Udveg","start":"21:48","end":"23:18","startHours":21.798957752742446,"endHours":23.302024875777963,"quality":"inauspicious"},{"name":"Chala","start":"23:18","end":"00:48","startHours":23.302024875777963,"endHours":24.80509199881348,"quality":"neutral"},{"name":"Labha","start":"00:48","end":"02:18","startHours":24.80509199881348,"endHours":26.308159121849,"quality":"auspicious"},{"name":"Amṛta","start":"02:18","end":"03:49","startHours":26.308159121849,"endHours":27.811226244884516,"quality":"auspicious"},{"name":"Kāla","start":"03:49","end":"05:19","startHours":27.811226244884516,"endHours":29.314293367920037,"quality":"inauspicious"},{"name":"Śubha","start":"05:19","end":"06:49","startHours":29.314293367920037,"endHours":30.817360490955554,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:49","end":"07:49","startHours":6.817360490955553,"endHours":7.817360490955553,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:49","end":"08:49","startHours":7.817360490955553,"endHours":8.817360490955554,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:49","end":"09:49","startHours":8.817360490955554,"endHours":9.817360490955554,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:49","end":"10:49","startHours":9.817360490955554,"endHours":10.817360490955554,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:49","end":"11:49","startHours":10.817360490955554,"endHours":11.817360490955554,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:49","end":"12:49","startHours":11.817360490955554,"endHours":12.817360490955554,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:49","end":"13:49","startHours":12.817360490955554,"endHours":13.817360490955554,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:49","end":"14:49","startHours":13.817360490955554,"endHours":14.817360490955554,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:49","end":"15:49","startHours":14.817360490955554,"endHours":15.817360490955554,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:49","end":"16:49","startHours":15.817360490955554,"endHours":16.817360490955554,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:49","end":"17:49","startHours":16.817360490955554,"endHours":17.817360490955554,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:49","end":"18:49","startHours":17.817360490955554,"endHours":18.817360490955554,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:49","end":"19:49","startHours":18.817360490955554,"endHours":19.817360490955554,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:49","end":"20:49","startHours":19.817360490955554,"endHours":20.817360490955554,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:49","end":"21:49","startHours":20.817360490955554,"endHours":21.817360490955554,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:49","end":"22:49","startHours":21.817360490955554,"endHours":22.817360490955554,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:49","end":"23:49","startHours":22.817360490955554,"endHours":23.817360490955554,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:49","end":"00:49","startHours":23.817360490955554,"endHours":24.817360490955554,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:49","end":"01:49","startHours":24.817360490955554,"endHours":25.817360490955554,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:49","end":"02:49","startHours":25.817360490955554,"endHours":26.817360490955554,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:49","end":"03:49","startHours":26.817360490955554,"endHours":27.817360490955554,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:49","end":"04:49","startHours":27.817360490955554,"endHours":28.817360490955554,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:49","end":"05:49","startHours":28.817360490955554,"endHours":29.817360490955554,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:49","end":"06:49","startHours":29.817360490955554,"endHours":30.817360490955554,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Karka","Kanyā","Dhanu","Makara"],"unfavorable_rashis":["Mithuna","Siṃha","Tulā","Vṛścika","Kumbha","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"South-West","rahuVasa":"North-East","anandadiYoga":{"name":"Vajra","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-3.0591432702004573,"eotMinutes":-10.217919928808794,"ayanamsa":25.2666}},"calendars":{"vikram_samvat":2158,"vikram_samvatsara":"Bhāva","saka_samvat":2023,"saka_samvatsara":"Durmati","bengali_samvat":1508,"malayalam_era":1277,"nanakshahi_year":632,"lunar_month":"Phālguna","lunar_month_paksha_full":"Phālguna Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Phālguna","lunar_month_amanta":"Phālguna","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Phālguna Śukla Trayodaśī · Vikram 2158 Bhāva · Śaka 2023 Durmati"},"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":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[]},"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 March 13, 2101 CE · Thane, Maharashtra · Vidhyamitra","description":"March 13, 2101 CE for Thane, Maharashtra: Śukla Trayodaśī, sūryodaya 06:49, sūryāsta 18:48.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/thane/2101-03-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/thane/2101-03-13","sa":"https://sa.vidhyamitra.com/city/thane/2101-03-13","hi":"https://hi.vidhyamitra.com/city/thane/2101-03-13","x-default":"https://vidhyamitra.com/city/thane/2101-03-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T11:56:16.731Z","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":"2026-06-02T11:56:16.731Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T11:56:16.731Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}