{"id":"vidhyamitra:city-day:ayodhya:2100-12-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/ayodhya/2100-12-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2100-12-31","date_display":"December 31, 2100 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":2100,"month":12,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488433.770833,"kali_year":5202,"ahargana":1899968.2708,"sun":{"sidereal_longitude":253.6321,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":255.1946,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":1.5625,"elapsed_within_tithi_degrees":1.5625},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1,"moon_longitude":255.1946,"elapsed_within_degrees":1.8613},"yoga":{"number":12,"name":"Dhruva","sum_longitude":148.8268},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":2100,"month":12,"day":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2488433.770833,"ahargana":1899968.2708,"kali_year":5202,"ayanamsa_lahiri":25.2639,"grahas":{"sun":{"sidereal_longitude":254.12728800000002,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":254.5821880000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false,"latitude":-3.7003},"mars":{"sidereal_longitude":226.64698799999996,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":270.3554879999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":200.58638799999994,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":237.95548800000006,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":190.32598800000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":310.5377,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":130.5377,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","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":2100,"month":12,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488433.770833,"kali_year":5202,"ahargana":1899968.2708,"sun":{"sidereal_longitude":253.6321,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":255.1946,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":1.5625,"elapsed_within_tithi_degrees":1.5625},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1,"moon_longitude":255.1946,"elapsed_within_degrees":1.8613},"yoga":{"number":12,"name":"Dhruva","sum_longitude":148.8268},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.7,"elongation":1.562},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.7,"opposition_distance":178.438}},"eclipse_window_40days":[]},"city":{"slug":"ayodhya","name":"Ayodhyā","lat":26.799,"lon":82.204,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"ayodhya","name":"Ayodhyā","lat":26.799,"lon":82.204,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"06:50","sunsetLocal":"17:19","solarNoonLocal":"12:04","dayLengthHours":10.479014440582425,"dayLengthDisplay":"10 Hours 28 Mins 44 Secs","nightLengthDisplay":"13 Hours 31 Mins 16 Secs","moonriseLocal":"06:53","moonsetLocal":"17:19","rahuKala":{"name":"Rāhu Kāla","start":"10:46","end":"12:04","startHours":10.764127110323951,"endHours":12.074003915396755,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:42","end":"16:00","startHours":14.693757525542361,"endHours":16.003634330615164,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:09","end":"09:27","startHours":8.144373500178347,"endHours":9.454250305251149,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:17","end":"09:38","startHours":9.279600064574776,"endHours":9.628900545927522,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:16","end":"07:33","startHours":7.271122296796477,"endHours":7.5505626818786755,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:43","end":"12:25","startHours":11.724703434044008,"endHours":12.423304396749502,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:26","end":"06:08","startHours":5.437294769694553,"endHours":6.135895732400048,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:58","end":"06:50","startHours":5.961245491723674,"endHours":6.834496695105543,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:49","end":"14:31","startHours":13.820506322160492,"endHours":14.519107284865987,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:07","end":"17:31","startHours":17.11351113568797,"endHours":17.513511135687967,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:19","end":"17:45","startHours":17.313511135687968,"endHours":17.750136737378902,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:04","end":"18:49","startHours":17.063511135687968,"endHours":18.813511135687968,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:43","end":"00:25","startHours":23.724703434044006,"endHours":24.423304396749504,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:50","end":"08:09","startHours":6.834496695105543,"endHours":8.144373500178347,"quality":"neutral"},{"name":"Labha","start":"08:09","end":"09:27","startHours":8.144373500178347,"endHours":9.454250305251149,"quality":"auspicious"},{"name":"Amṛta","start":"09:27","end":"10:46","startHours":9.454250305251149,"endHours":10.764127110323951,"quality":"auspicious"},{"name":"Kāla","start":"10:46","end":"12:04","startHours":10.764127110323951,"endHours":12.074003915396755,"quality":"inauspicious"},{"name":"Śubha","start":"12:04","end":"13:23","startHours":12.074003915396755,"endHours":13.38388072046956,"quality":"auspicious"},{"name":"Roga","start":"13:23","end":"14:42","startHours":13.38388072046956,"endHours":14.693757525542361,"quality":"inauspicious"},{"name":"Udveg","start":"14:42","end":"16:00","startHours":14.693757525542361,"endHours":16.003634330615164,"quality":"inauspicious"},{"name":"Chala","start":"16:00","end":"17:19","startHours":16.003634330615164,"endHours":17.313511135687968,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:19","end":"19:00","startHours":17.313511135687968,"endHours":19.003634330615164,"quality":"inauspicious"},{"name":"Udveg","start":"19:00","end":"20:42","startHours":19.003634330615164,"endHours":20.69375752554236,"quality":"inauspicious"},{"name":"Chala","start":"20:42","end":"22:23","startHours":20.69375752554236,"endHours":22.38388072046956,"quality":"neutral"},{"name":"Labha","start":"22:23","end":"00:04","startHours":22.38388072046956,"endHours":24.074003915396755,"quality":"auspicious"},{"name":"Amṛta","start":"00:04","end":"01:46","startHours":24.074003915396755,"endHours":25.76412711032395,"quality":"auspicious"},{"name":"Kāla","start":"01:46","end":"03:27","startHours":25.76412711032395,"endHours":27.45425030525115,"quality":"inauspicious"},{"name":"Śubha","start":"03:27","end":"05:09","startHours":27.45425030525115,"endHours":29.144373500178347,"quality":"auspicious"},{"name":"Roga","start":"05:09","end":"06:50","startHours":29.144373500178347,"endHours":30.834496695105543,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:50","end":"07:50","startHours":6.834496695105543,"endHours":7.834496695105543,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:50","end":"08:50","startHours":7.834496695105543,"endHours":8.834496695105543,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:50","end":"09:50","startHours":8.834496695105543,"endHours":9.834496695105543,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:50","end":"10:50","startHours":9.834496695105543,"endHours":10.834496695105543,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:50","end":"11:50","startHours":10.834496695105543,"endHours":11.834496695105543,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:50","end":"12:50","startHours":11.834496695105543,"endHours":12.834496695105543,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:50","end":"13:50","startHours":12.834496695105543,"endHours":13.834496695105543,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:50","end":"14:50","startHours":13.834496695105543,"endHours":14.834496695105543,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:50","end":"15:50","startHours":14.834496695105543,"endHours":15.834496695105543,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:50","end":"16:50","startHours":15.834496695105543,"endHours":16.834496695105543,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:50","end":"17:50","startHours":16.834496695105543,"endHours":17.834496695105543,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:50","end":"18:50","startHours":17.834496695105543,"endHours":18.834496695105543,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:50","end":"19:50","startHours":18.834496695105543,"endHours":19.834496695105543,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:50","end":"20:50","startHours":19.834496695105543,"endHours":20.834496695105543,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:50","end":"21:50","startHours":20.834496695105543,"endHours":21.834496695105543,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:50","end":"22:50","startHours":21.834496695105543,"endHours":22.834496695105543,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:50","end":"23:50","startHours":22.834496695105543,"endHours":23.834496695105543,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:50","end":"00:50","startHours":23.834496695105543,"endHours":24.834496695105543,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:50","end":"01:50","startHours":24.834496695105543,"endHours":25.834496695105543,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:50","end":"02:50","startHours":25.834496695105543,"endHours":26.834496695105543,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:50","end":"03:50","startHours":26.834496695105543,"endHours":27.834496695105543,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:50","end":"04:50","startHours":27.834496695105543,"endHours":28.834496695105543,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:50","end":"05:50","startHours":28.834496695105543,"endHours":29.834496695105543,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:50","end":"06:50","startHours":29.834496695105543,"endHours":30.834496695105543,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"East","rahuVasa":"South-East","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.10402670843731,"eotMinutes":-3.2562349238053434,"ayanamsa":25.2639}},"calendars":{"vikram_samvat":2157,"vikram_samvatsara":"Śrīmukha","saka_samvat":2022,"saka_samvatsara":"Raudra","bengali_samvat":1507,"malayalam_era":1276,"nanakshahi_year":631,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Dhanus (Mārgaḻi)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Pratipada · Vikram 2157 Śrīmukha · Śaka 2022 Raudra"},"festivals":[],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"ayodhya"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga December 31, 2100 CE · Ayodhyā · Vidhyamitra","description":"December 31, 2100 CE for Ayodhyā: Śukla Pratipada, sūryodaya 06:50, sūryāsta 17:19.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/ayodhya/2100-12-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/ayodhya/2100-12-31","sa":"https://sa.vidhyamitra.com/city/ayodhya/2100-12-31","hi":"https://hi.vidhyamitra.com/city/ayodhya/2100-12-31","x-default":"https://vidhyamitra.com/city/ayodhya/2100-12-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T00:36:56.610Z","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":"2026-06-01T00:36:56.610Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T00:36:56.610Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}