{"id":"vidhyamitra:city-day:shimla:2024-04-21:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/shimla/2024-04-21","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2024-04-21","date_display":"April 21, 2024 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":2024,"month":4,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2460421.770833,"kali_year":5126,"ahargana":1871956.2708,"sun":{"sidereal_longitude":7.2927,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":153.4263,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":146.1336,"elapsed_within_tithi_degrees":2.1336},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3,"moon_longitude":153.4263,"elapsed_within_degrees":6.7596},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":160.719},"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":2024,"month":4,"day":21,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2460421.770833,"ahargana":1871956.2708,"kali_year":5126,"ayanamsa_lahiri":24.1925,"grahas":{"sun":{"sidereal_longitude":7.243451999999991,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":154.79085199999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false,"latitude":1.6348},"mars":{"sidereal_longitude":328.045252,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":352.410552,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":27.648052000000007,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":355.10675200000003,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":321.6169520000001,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":354.7483,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":174.7483,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":1},"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":2024,"month":4,"day":21,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2460421.770833,"kali_year":5126,"ahargana":1871956.2708,"sun":{"sidereal_longitude":7.2927,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":153.4263,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":146.1336,"elapsed_within_tithi_degrees":2.1336},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3,"moon_longitude":153.4263,"elapsed_within_degrees":6.7596},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":160.719},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.635,"elongation":146.134},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.635,"opposition_distance":33.866}},"eclipse_window_40days":[{"offset_days":3,"type":"lunar","occurs":true,"moon_latitude":-1.28,"opposition_distance":0.923}]},"city":{"slug":"shimla","name":"Shimla, Himachal Pradesh","lat":31.1048,"lon":77.1734,"tz_offset_hours":5.5,"state":"Himachal Pradesh","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"shimla","name":"Shimla, Himachal Pradesh","lat":31.1048,"lon":77.1734,"tz_offset_hours":5.5,"state":"Himachal Pradesh","country":"IN","tier":"tier-1"},"sunriseLocal":"05:47","sunsetLocal":"18:54","solarNoonLocal":"12:20","dayLengthHours":13.11392605286273,"dayLengthDisplay":"13 Hours 06 Mins 50 Secs","nightLengthDisplay":"10 Hours 53 Mins 10 Secs","moonriseLocal":"16:07","moonsetLocal":"04:14","rahuKala":{"name":"Rāhu Kāla","start":"17:15","end":"18:54","startHours":17.25304012247082,"endHours":18.892280879078662,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:20","end":"13:58","startHours":12.335317852647297,"endHours":13.974558609255137,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:37","end":"17:15","startHours":15.613799365862981,"endHours":17.25304012247082,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:50","end":"09:17","startHours":8.838270905217236,"endHours":9.275401773645994,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:19","end":"06:40","startHours":6.324768411751879,"endHours":6.674473106494886,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:54","end":"12:46","startHours":11.898186984218539,"endHours":12.772448721076055,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:02","end":"04:54","startHours":4.029831352500901,"endHours":4.904093089358417,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:41","end":"05:47","startHours":4.685527655144038,"endHours":5.778354826215932,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:31","end":"15:24","startHours":14.520972194791085,"endHours":15.395233931648601,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:42","end":"19:06","startHours":18.692280879078663,"endHours":19.09228087907866,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:54","end":"19:26","startHours":18.892280879078662,"endHours":19.43869446461461,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:39","end":"20:24","startHours":18.642280879078662,"endHours":20.392280879078662,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:54","end":"00:46","startHours":23.89818698421854,"endHours":24.772448721076053,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"05:47","end":"07:25","startHours":5.778354826215932,"endHours":7.417595582823774,"quality":"inauspicious"},{"name":"Chala","start":"07:25","end":"09:03","startHours":7.417595582823774,"endHours":9.056836339431616,"quality":"neutral"},{"name":"Labha","start":"09:03","end":"10:42","startHours":9.056836339431616,"endHours":10.696077096039456,"quality":"auspicious"},{"name":"Amṛta","start":"10:42","end":"12:20","startHours":10.696077096039456,"endHours":12.335317852647297,"quality":"auspicious"},{"name":"Kāla","start":"12:20","end":"13:58","startHours":12.335317852647297,"endHours":13.974558609255137,"quality":"inauspicious"},{"name":"Śubha","start":"13:58","end":"15:37","startHours":13.974558609255137,"endHours":15.613799365862981,"quality":"auspicious"},{"name":"Roga","start":"15:37","end":"17:15","startHours":15.613799365862981,"endHours":17.25304012247082,"quality":"inauspicious"},{"name":"Udveg","start":"17:15","end":"18:54","startHours":17.25304012247082,"endHours":18.892280879078662,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:54","end":"20:15","startHours":18.892280879078662,"endHours":20.25304012247082,"quality":"auspicious"},{"name":"Roga","start":"20:15","end":"21:37","startHours":20.25304012247082,"endHours":21.61379936586298,"quality":"inauspicious"},{"name":"Udveg","start":"21:37","end":"22:58","startHours":21.61379936586298,"endHours":22.974558609255137,"quality":"inauspicious"},{"name":"Chala","start":"22:58","end":"00:20","startHours":22.974558609255137,"endHours":24.335317852647297,"quality":"neutral"},{"name":"Labha","start":"00:20","end":"01:42","startHours":24.335317852647297,"endHours":25.696077096039456,"quality":"auspicious"},{"name":"Amṛta","start":"01:42","end":"03:03","startHours":25.696077096039456,"endHours":27.056836339431612,"quality":"auspicious"},{"name":"Kāla","start":"03:03","end":"04:25","startHours":27.056836339431612,"endHours":28.417595582823772,"quality":"inauspicious"},{"name":"Śubha","start":"04:25","end":"05:47","startHours":28.417595582823772,"endHours":29.77835482621593,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:47","end":"06:47","startHours":5.778354826215932,"endHours":6.778354826215932,"planetary_lord":"Sun"},{"name":"Hora 2","start":"06:47","end":"07:47","startHours":6.778354826215932,"endHours":7.778354826215932,"planetary_lord":"Mars"},{"name":"Hora 3","start":"07:47","end":"08:47","startHours":7.778354826215932,"endHours":8.778354826215931,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"08:47","end":"09:47","startHours":8.778354826215931,"endHours":9.778354826215931,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"09:47","end":"10:47","startHours":9.778354826215931,"endHours":10.778354826215931,"planetary_lord":"Moon"},{"name":"Hora 6","start":"10:47","end":"11:47","startHours":10.778354826215931,"endHours":11.778354826215931,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"11:47","end":"12:47","startHours":11.778354826215931,"endHours":12.778354826215931,"planetary_lord":"Venus"},{"name":"Hora 8","start":"12:47","end":"13:47","startHours":12.778354826215931,"endHours":13.778354826215931,"planetary_lord":"Sun"},{"name":"Hora 9","start":"13:47","end":"14:47","startHours":13.778354826215931,"endHours":14.778354826215931,"planetary_lord":"Mars"},{"name":"Hora 10","start":"14:47","end":"15:47","startHours":14.778354826215931,"endHours":15.778354826215931,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"15:47","end":"16:47","startHours":15.778354826215931,"endHours":16.77835482621593,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"16:47","end":"17:47","startHours":16.77835482621593,"endHours":17.77835482621593,"planetary_lord":"Moon"},{"name":"Hora 13","start":"17:47","end":"18:47","startHours":17.77835482621593,"endHours":18.77835482621593,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"18:47","end":"19:47","startHours":18.77835482621593,"endHours":19.77835482621593,"planetary_lord":"Venus"},{"name":"Hora 15","start":"19:47","end":"20:47","startHours":19.77835482621593,"endHours":20.77835482621593,"planetary_lord":"Sun"},{"name":"Hora 16","start":"20:47","end":"21:47","startHours":20.77835482621593,"endHours":21.77835482621593,"planetary_lord":"Mars"},{"name":"Hora 17","start":"21:47","end":"22:47","startHours":21.77835482621593,"endHours":22.77835482621593,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"22:47","end":"23:47","startHours":22.77835482621593,"endHours":23.77835482621593,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"23:47","end":"00:47","startHours":23.77835482621593,"endHours":24.77835482621593,"planetary_lord":"Moon"},{"name":"Hora 20","start":"00:47","end":"01:47","startHours":24.77835482621593,"endHours":25.77835482621593,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"01:47","end":"02:47","startHours":25.77835482621593,"endHours":26.77835482621593,"planetary_lord":"Venus"},{"name":"Hora 22","start":"02:47","end":"03:47","startHours":26.77835482621593,"endHours":27.77835482621593,"planetary_lord":"Sun"},{"name":"Hora 23","start":"03:47","end":"04:47","startHours":27.77835482621593,"endHours":28.77835482621593,"planetary_lord":"Mars"},{"name":"Hora 24","start":"04:47","end":"05:47","startHours":28.77835482621593,"endHours":29.77835482621593,"planetary_lord":"Jupiter"}],"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":"West (Paścim)","chandraVasa":"North-West","rahuVasa":"North-East","anandadiYoga":{"name":"Maitra","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":11.972103648512757,"eotMinutes":1.1873288411622274,"ayanamsa":24.1925}},"calendars":{"vikram_samvat":2081,"vikram_samvatsara":"Piṅgala","saka_samvat":1946,"saka_samvatsara":"Krodhi","bengali_samvat":1431,"malayalam_era":1200,"nanakshahi_year":555,"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":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Trayodaśī · Vikram 2081 Piṅgala · Śaka 1946 Krodhi"},"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":"Dedicated festival walk for Pradoṣa Vrata is not live yet; Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"shimla"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga April 21, 2024 CE · Shimla, Himachal Pradesh · Vidhyamitra","description":"April 21, 2024 CE for Shimla, Himachal Pradesh: Śukla Trayodaśī, sūryodaya 05:47, sūryāsta 18:54.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/shimla/2024-04-21","hreflang_alternates":{"en":"https://vidhyamitra.com/city/shimla/2024-04-21","sa":"https://sa.vidhyamitra.com/city/shimla/2024-04-21","hi":"https://hi.vidhyamitra.com/city/shimla/2024-04-21","x-default":"https://vidhyamitra.com/city/shimla/2024-04-21"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-07-27T19:28:13.913Z","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":"2026-07-27T19:28:13.913Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-07-27T19:28:13.913Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no founder-city is the universal center.","purna_chain":["Goloka/Vraja Rādhā-Krishna","Vaikuṇṭha Lakṣmī-Nārāyaṇa","Mahāviṣṇu/Kāraṇodakaśāyī Viṣṇu","Garbhodakaśāyī Viṣṇu","Brahmā","Kṣīrodaka Paramātmā/Antaryāmī (Kṣīrodakaśāyī Viṣṇu)","Bhūmi","reader's own kṣetra anywhere on Bhūmi","exact reading kṣetra","Divyāṁśa-bhakta","chitta/vāṇī/aṅgulī","keyboard-silicon-pathways","Vidhyāmitra substrate","reader/seer","Krishna"],"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"}}}