{"id":"vidhyamitra:city-day:beijing:2102-04-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/beijing/2102-04-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2102-04-01","date_display":"April 1, 2102 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":2102,"month":4,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488889.770833,"kali_year":5203,"ahargana":1900424.2708,"sun":{"sidereal_longitude":345.5754,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":133.8194,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":148.244,"elapsed_within_tithi_degrees":4.244},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1,"moon_longitude":133.8194,"elapsed_within_degrees":0.4861},"yoga":{"number":9,"name":"Śūla","sum_longitude":119.3948},"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":2102,"month":4,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2488889.770833,"ahargana":1900424.2708,"kali_year":5203,"ayanamsa_lahiri":25.2813,"grahas":{"sun":{"sidereal_longitude":345.642866,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":134.581366,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false,"latitude":-2.0722},"mars":{"sidereal_longitude":67.93906600000003,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":358.765066,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":238.270266,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":300.41586600000005,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":203.14626599999997,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":286.3766,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":106.3766,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","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":2102,"month":4,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2488889.770833,"kali_year":5203,"ahargana":1900424.2708,"sun":{"sidereal_longitude":345.5754,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":133.8194,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":148.244,"elapsed_within_tithi_degrees":4.244},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1,"moon_longitude":133.8194,"elapsed_within_degrees":0.4861},"yoga":{"number":9,"name":"Śūla","sum_longitude":119.3948},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.072,"elongation":148.244},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.072,"opposition_distance":31.756}},"eclipse_window_40days":[]},"city":{"slug":"beijing","name":"Beijing, Beijing","lat":39.9075,"lon":116.3972,"tz_offset_hours":8,"state":"Beijing","country":"CN","tier":"mega"},"tier2":{"city":{"slug":"beijing","name":"Beijing, Beijing","lat":39.9075,"lon":116.3972,"tz_offset_hours":8,"state":"Beijing","country":"CN","tier":"mega"},"sunriseLocal":"06:00","sunsetLocal":"18:38","solarNoonLocal":"12:19","dayLengthHours":12.628867937611236,"dayLengthDisplay":"12 Hours 37 Mins 44 Secs","nightLengthDisplay":"11 Hours 22 Mins 16 Secs","moonriseLocal":"15:45","moonsetLocal":"04:44","rahuKala":{"name":"Rāhu Kāla","start":"09:09","end":"10:44","startHours":9.155374617283048,"endHours":10.733983109484454,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:53","end":"15:28","startHours":13.891200093887262,"endHours":15.469808586088668,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:00","end":"07:35","startHours":5.99815763288024,"endHours":7.576766125081644,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:57","end":"09:22","startHours":8.944893484989528,"endHours":9.36585574957657,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:31","end":"06:52","startHours":6.524360463614041,"endHours":6.861130275283674,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:44","startHours":11.891629337098816,"endHours":12.7335538662729,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:19","end":"05:09","startHours":4.314308574532075,"endHours":5.156233103706157,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:57","end":"06:00","startHours":4.945751971412637,"endHours":5.99815763288024,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:25","end":"15:16","startHours":14.417402924621065,"endHours":15.259327453795148,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:26","end":"18:50","startHours":18.427025570491477,"endHours":18.827025570491475,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:38","end":"19:09","startHours":18.627025570491476,"endHours":19.153228401225277,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:23","end":"20:08","startHours":18.377025570491476,"endHours":20.127025570491476,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:44","startHours":23.89162933709882,"endHours":24.7335538662729,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:00","end":"07:35","startHours":5.99815763288024,"endHours":7.576766125081644,"quality":"inauspicious"},{"name":"Śubha","start":"07:35","end":"09:09","startHours":7.576766125081644,"endHours":9.155374617283048,"quality":"auspicious"},{"name":"Roga","start":"09:09","end":"10:44","startHours":9.155374617283048,"endHours":10.733983109484454,"quality":"inauspicious"},{"name":"Udveg","start":"10:44","end":"12:19","startHours":10.733983109484454,"endHours":12.312591601685858,"quality":"inauspicious"},{"name":"Chala","start":"12:19","end":"13:53","startHours":12.312591601685858,"endHours":13.891200093887262,"quality":"neutral"},{"name":"Labha","start":"13:53","end":"15:28","startHours":13.891200093887262,"endHours":15.469808586088668,"quality":"auspicious"},{"name":"Amṛta","start":"15:28","end":"17:03","startHours":15.469808586088668,"endHours":17.048417078290072,"quality":"auspicious"},{"name":"Kāla","start":"17:03","end":"18:38","startHours":17.048417078290072,"endHours":18.627025570491476,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:38","end":"20:03","startHours":18.627025570491476,"endHours":20.048417078290072,"quality":"auspicious"},{"name":"Amṛta","start":"20:03","end":"21:28","startHours":20.048417078290072,"endHours":21.469808586088668,"quality":"auspicious"},{"name":"Kāla","start":"21:28","end":"22:53","startHours":21.469808586088668,"endHours":22.891200093887264,"quality":"inauspicious"},{"name":"Śubha","start":"22:53","end":"00:19","startHours":22.891200093887264,"endHours":24.31259160168586,"quality":"auspicious"},{"name":"Roga","start":"00:19","end":"01:44","startHours":24.31259160168586,"endHours":25.733983109484456,"quality":"inauspicious"},{"name":"Udveg","start":"01:44","end":"03:09","startHours":25.733983109484456,"endHours":27.155374617283048,"quality":"inauspicious"},{"name":"Chala","start":"03:09","end":"04:35","startHours":27.155374617283048,"endHours":28.576766125081644,"quality":"neutral"},{"name":"Labha","start":"04:35","end":"06:00","startHours":28.576766125081644,"endHours":29.99815763288024,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:00","end":"07:00","startHours":5.99815763288024,"endHours":6.99815763288024,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:00","end":"08:00","startHours":6.99815763288024,"endHours":7.99815763288024,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:00","end":"09:00","startHours":7.99815763288024,"endHours":8.99815763288024,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:00","end":"10:00","startHours":8.99815763288024,"endHours":9.99815763288024,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:00","end":"11:00","startHours":9.99815763288024,"endHours":10.99815763288024,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:00","end":"12:00","startHours":10.99815763288024,"endHours":11.99815763288024,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:00","end":"13:00","startHours":11.99815763288024,"endHours":12.99815763288024,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:00","end":"14:00","startHours":12.99815763288024,"endHours":13.99815763288024,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:00","end":"15:00","startHours":13.99815763288024,"endHours":14.99815763288024,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:00","end":"16:00","startHours":14.99815763288024,"endHours":15.99815763288024,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:00","end":"17:00","startHours":15.99815763288024,"endHours":16.99815763288024,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:00","end":"18:00","startHours":16.99815763288024,"endHours":17.99815763288024,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:00","end":"19:00","startHours":17.99815763288024,"endHours":18.99815763288024,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:00","end":"20:00","startHours":18.99815763288024,"endHours":19.99815763288024,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:00","end":"21:00","startHours":19.99815763288024,"endHours":20.99815763288024,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:00","end":"22:00","startHours":20.99815763288024,"endHours":21.99815763288024,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:00","end":"23:00","startHours":21.99815763288024,"endHours":22.99815763288024,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:00","end":"00:00","startHours":22.99815763288024,"endHours":23.99815763288024,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:00","end":"01:00","startHours":23.99815763288024,"endHours":24.99815763288024,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:00","end":"02:00","startHours":24.99815763288024,"endHours":25.99815763288024,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:00","end":"03:00","startHours":25.99815763288024,"endHours":26.99815763288024,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:00","end":"04:00","startHours":26.99815763288024,"endHours":27.99815763288024,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:00","end":"05:00","startHours":27.99815763288024,"endHours":28.99815763288024,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:00","end":"06:00","startHours":28.99815763288024,"endHours":29.99815763288024,"planetary_lord":"Mercury"}],"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","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"West","rahuVasa":"East","anandadiYoga":{"name":"Dhvaja","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":4.322718467590877,"eotMinutes":-4.344296101151456,"ayanamsa":25.2813}},"calendars":{"vikram_samvat":2159,"vikram_samvatsara":"Yuva","saka_samvat":2024,"saka_samvatsara":"Dundubhi","bengali_samvat":1509,"malayalam_era":1278,"nanakshahi_year":633,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Trayodaśī · Vikram 2159 Yuva · Śaka 2024 Dundubhi"},"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":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"beijing"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga April 1, 2102 CE · Beijing, Beijing · Vidhyamitra","description":"April 1, 2102 CE for Beijing, Beijing: Śukla Trayodaśī, sūryodaya 06:00, sūryāsta 18:38.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/beijing/2102-04-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/beijing/2102-04-01","sa":"https://sa.vidhyamitra.com/city/beijing/2102-04-01","hi":"https://hi.vidhyamitra.com/city/beijing/2102-04-01","x-default":"https://vidhyamitra.com/city/beijing/2102-04-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T16:40:04.602Z","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":"2026-06-02T16:40:04.602Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T16:40:04.602Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}