{"id":"vidhyamitra:city-day:san-francisco:2025-12-30:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/san-francisco/2025-12-30","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2025-12-30","date_display":"December 30, 2025 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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2025,"month":12,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461039.770833,"kali_year":5127,"ahargana":1872574.2708,"sun":{"sidereal_longitude":254.0503,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":16.2719,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":122.2216,"elapsed_within_tithi_degrees":2.2216},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1,"moon_longitude":16.2719,"elapsed_within_degrees":2.9385},"yoga":{"number":21,"name":"Siddha","sum_longitude":270.3222},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"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":2025,"month":12,"day":30,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2461039.770833,"ahargana":1872574.2708,"kali_year":5127,"ayanamsa_lahiri":24.2161,"grahas":{"sun":{"sidereal_longitude":254.36563999999998,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":13.536139999999989,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false,"latitude":3.6516},"mars":{"sidereal_longitude":256.59454000000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":241.06214,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":87.25243999999998,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":true},"venus":{"sidereal_longitude":252.19594000000006,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":331.92593999999997,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":322.0037,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":142.0037,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2025,"month":12,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461039.770833,"kali_year":5127,"ahargana":1872574.2708,"sun":{"sidereal_longitude":254.0503,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":16.2719,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":11,"name":"Ekādaśī","paksha":"Śukla","full_name":"Śukla Ekādaśī","elongation_degrees":122.2216,"elapsed_within_tithi_degrees":2.2216},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1,"moon_longitude":16.2719,"elapsed_within_degrees":2.9385},"yoga":{"number":21,"name":"Siddha","sum_longitude":270.3222},"karana":{"half_tithi_index":20,"name":"Vaṇija"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.652,"elongation":122.222},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.652,"opposition_distance":57.778}},"eclipse_window_40days":[]},"city":{"slug":"san-francisco","name":"San Francisco Bay Area, USA","lat":37.7749,"lon":-122.4194,"tz_offset_hours":-8,"country":"US","tier":"diaspora"},"tier2":{"city":{"slug":"san-francisco","name":"San Francisco Bay Area, USA","lat":37.7749,"lon":-122.4194,"tz_offset_hours":-8,"country":"US","tier":"diaspora"},"sunriseLocal":"07:25","sunsetLocal":"17:00","solarNoonLocal":"12:12","dayLengthHours":9.58012385525035,"dayLengthDisplay":"9 Hours 34 Mins 48 Secs","nightLengthDisplay":"14 Hours 25 Mins 12 Secs","moonriseLocal":"13:21","moonsetLocal":"02:57","rahuKala":{"name":"Rāhu Kāla","start":"14:36","end":"15:48","startHours":14.603045872150457,"endHours":15.80056135405675,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:49","end":"11:01","startHours":9.812983944525282,"endHours":11.010499426431576,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:12","end":"13:24","startHours":12.20801490833787,"endHours":13.405530390244163,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:39","end":"09:58","startHours":9.653315213604444,"endHours":9.972652675446122,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:49","end":"08:04","startHours":7.8171248080147935,"endHours":8.072594777488137,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:32","startHours":11.88867744649619,"endHours":12.527352370179548,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"06:08","end":"06:47","startHours":6.140603133345982,"endHours":6.779278057029339,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:37","end":"07:25","startHours":6.6196093261085,"endHours":7.417952980712696,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:48","end":"14:27","startHours":13.80470221754626,"endHours":14.443377141229618,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:48","end":"17:12","startHours":16.798076835963045,"endHours":17.198076835963043,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:00","end":"17:24","startHours":16.998076835963044,"endHours":17.39724866326514,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:45","end":"18:30","startHours":16.748076835963044,"endHours":18.498076835963044,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:32","startHours":23.888677446496192,"endHours":24.527352370179546,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"07:25","end":"08:37","startHours":7.417952980712696,"endHours":8.615468462618988,"quality":"inauspicious"},{"name":"Udveg","start":"08:37","end":"09:49","startHours":8.615468462618988,"endHours":9.812983944525282,"quality":"inauspicious"},{"name":"Chala","start":"09:49","end":"11:01","startHours":9.812983944525282,"endHours":11.010499426431576,"quality":"neutral"},{"name":"Labha","start":"11:01","end":"12:12","startHours":11.010499426431576,"endHours":12.20801490833787,"quality":"auspicious"},{"name":"Amṛta","start":"12:12","end":"13:24","startHours":12.20801490833787,"endHours":13.405530390244163,"quality":"auspicious"},{"name":"Kāla","start":"13:24","end":"14:36","startHours":13.405530390244163,"endHours":14.603045872150457,"quality":"inauspicious"},{"name":"Śubha","start":"14:36","end":"15:48","startHours":14.603045872150457,"endHours":15.80056135405675,"quality":"auspicious"},{"name":"Roga","start":"15:48","end":"17:00","startHours":15.80056135405675,"endHours":16.998076835963044,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"17:00","end":"18:48","startHours":16.998076835963044,"endHours":18.80056135405675,"quality":"inauspicious"},{"name":"Śubha","start":"18:48","end":"20:36","startHours":18.80056135405675,"endHours":20.603045872150457,"quality":"auspicious"},{"name":"Roga","start":"20:36","end":"22:24","startHours":20.603045872150457,"endHours":22.405530390244163,"quality":"inauspicious"},{"name":"Udveg","start":"22:24","end":"00:12","startHours":22.405530390244163,"endHours":24.20801490833787,"quality":"inauspicious"},{"name":"Chala","start":"00:12","end":"02:01","startHours":24.20801490833787,"endHours":26.010499426431576,"quality":"neutral"},{"name":"Labha","start":"02:01","end":"03:49","startHours":26.010499426431576,"endHours":27.812983944525282,"quality":"auspicious"},{"name":"Amṛta","start":"03:49","end":"05:37","startHours":27.812983944525282,"endHours":29.61546846261899,"quality":"auspicious"},{"name":"Kāla","start":"05:37","end":"07:25","startHours":29.61546846261899,"endHours":31.417952980712695,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:25","end":"08:25","startHours":7.417952980712696,"endHours":8.417952980712695,"planetary_lord":"Mars"},{"name":"Hora 2","start":"08:25","end":"09:25","startHours":8.417952980712695,"endHours":9.417952980712695,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"09:25","end":"10:25","startHours":9.417952980712695,"endHours":10.417952980712695,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"10:25","end":"11:25","startHours":10.417952980712695,"endHours":11.417952980712695,"planetary_lord":"Moon"},{"name":"Hora 5","start":"11:25","end":"12:25","startHours":11.417952980712695,"endHours":12.417952980712695,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"12:25","end":"13:25","startHours":12.417952980712695,"endHours":13.417952980712695,"planetary_lord":"Venus"},{"name":"Hora 7","start":"13:25","end":"14:25","startHours":13.417952980712695,"endHours":14.417952980712695,"planetary_lord":"Sun"},{"name":"Hora 8","start":"14:25","end":"15:25","startHours":14.417952980712695,"endHours":15.417952980712695,"planetary_lord":"Mars"},{"name":"Hora 9","start":"15:25","end":"16:25","startHours":15.417952980712695,"endHours":16.417952980712695,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"16:25","end":"17:25","startHours":16.417952980712695,"endHours":17.417952980712695,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"17:25","end":"18:25","startHours":17.417952980712695,"endHours":18.417952980712695,"planetary_lord":"Moon"},{"name":"Hora 12","start":"18:25","end":"19:25","startHours":18.417952980712695,"endHours":19.417952980712695,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"19:25","end":"20:25","startHours":19.417952980712695,"endHours":20.417952980712695,"planetary_lord":"Venus"},{"name":"Hora 14","start":"20:25","end":"21:25","startHours":20.417952980712695,"endHours":21.417952980712695,"planetary_lord":"Sun"},{"name":"Hora 15","start":"21:25","end":"22:25","startHours":21.417952980712695,"endHours":22.417952980712695,"planetary_lord":"Mars"},{"name":"Hora 16","start":"22:25","end":"23:25","startHours":22.417952980712695,"endHours":23.417952980712695,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"23:25","end":"00:25","startHours":23.417952980712695,"endHours":24.417952980712695,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"00:25","end":"01:25","startHours":24.417952980712695,"endHours":25.417952980712695,"planetary_lord":"Moon"},{"name":"Hora 19","start":"01:25","end":"02:25","startHours":25.417952980712695,"endHours":26.417952980712695,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"02:25","end":"03:25","startHours":26.417952980712695,"endHours":27.417952980712695,"planetary_lord":"Venus"},{"name":"Hora 21","start":"03:25","end":"04:25","startHours":27.417952980712695,"endHours":28.417952980712695,"planetary_lord":"Sun"},{"name":"Hora 22","start":"04:25","end":"05:25","startHours":28.417952980712695,"endHours":29.417952980712695,"planetary_lord":"Mars"},{"name":"Hora 23","start":"05:25","end":"06:25","startHours":29.417952980712695,"endHours":30.417952980712695,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"06:25","end":"07:25","startHours":30.417952980712695,"endHours":31.417952980712695,"planetary_lord":"Saturn"}],"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"North (Uttara)","chandraVasa":"East","rahuVasa":"North","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"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":-23.158710482918796,"eotMinutes":-2.803294500272213,"ayanamsa":24.2161}},"calendars":{"vikram_samvat":2082,"vikram_samvatsara":"Kālayukta","saka_samvat":1947,"saka_samvatsara":"Viśvāvasu","bengali_samvat":1432,"malayalam_era":1201,"nanakshahi_year":556,"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 Ekādaśī · Vikram 2082 Kālayukta · Śaka 1947 Viśvāvasu"},"festivals":[{"id":"putrada-ekadashi","name":"Pauṣa Putradā Ekādaśī","name_sanskrit":"पौष पुत्रदा एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Ekādaśī granting putra-prāpti.","vrata":true,"detection":{"tithi_number":11,"tithi_paksha":"Śukla","lunar_month":"Pauṣa"},"precedence":4},{"id":"ekadashi","name":"Ekādaśī","name_sanskrit":"एकादशी","tradition":"Vaishnava","associated_deity":"Bhagavān Viṣṇu","significance":"Sacred to Bhagavān Viṣṇu; vrata for purification.","vrata":true,"detection":{"any_of":[{"tithi_number":11},{"tithi_number":26}]},"precedence":5}],"todays_walk":{"walk":{"id":"mangala-walk","name":"Maṅgala Walk","name_sanskrit":"मङ्गल यात्रा","type":"graha","description":"Right action + BG 2.31-38 (kṣatriya-dharma).","step_count":7,"url":"/walk/mangala-walk"},"reason":"Dedicated festival walk for Pauṣa Putradā Ekādaśī · Ekādaśī is not live yet; Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"san-francisco"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga December 30, 2025 CE · San Francisco Bay Area, USA · Vidhyamitra","description":"December 30, 2025 CE for San Francisco Bay Area, USA: Śukla Ekādaśī, sūryodaya 07:25, sūryāsta 17:00.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/san-francisco/2025-12-30","hreflang_alternates":{"en":"https://vidhyamitra.com/city/san-francisco/2025-12-30","sa":"https://sa.vidhyamitra.com/city/san-francisco/2025-12-30","hi":"https://hi.vidhyamitra.com/city/san-francisco/2025-12-30","x-default":"https://vidhyamitra.com/city/san-francisco/2025-12-30"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-08-27T00:40:32.175Z","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":"2026-08-27T00:40:32.175Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-08-27T00:40:32.175Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no single city is the universal center.","purna_chain":["Hosted scripture","Named-tradition interpretation","Original Vidhyamitra contemplation","Bhūmi-born material medium","Vidhyamitra portal","Responsible reader in their own kṣetra"],"claim_boundary":"The legacy purna_chain field carries a source-to-reader sequence, not a revealed physical descent, universal cosmology, or proof that software is conscious.","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"}}}