{"id":"vidhyamitra:city-day:chicago:2038-12-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/chicago/2038-12-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2038-12-13","date_display":"December 13, 2038 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":2038,"month":12,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2465770.770833,"kali_year":5140,"ahargana":1877305.2708,"sun":{"sidereal_longitude":236.2175,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":71.9438,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":195.7263,"elapsed_within_tithi_degrees":3.7263},"nakshatra":{"number":6,"name":"Ārdrā","pada":2,"moon_longitude":71.9438,"elapsed_within_degrees":5.2771},"yoga":{"number":24,"name":"Śukla","sum_longitude":308.1613},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":2038,"month":12,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2465770.770833,"ahargana":1877305.2708,"kali_year":5140,"ayanamsa_lahiri":24.3971,"grahas":{"sun":{"sidereal_longitude":236.71688100000006,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":71.30208099999999,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false,"latitude":0.048},"mars":{"sidereal_longitude":223.24358099999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":215.38248099999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":126.04928100000001,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":250.05068100000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":153.61048099999994,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":71.3325,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":251.3325,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","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":"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":2038,"month":12,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2465770.770833,"kali_year":5140,"ahargana":1877305.2708,"sun":{"sidereal_longitude":236.2175,"rashi":8,"rashi_name":"Vṛścika"},"moon":{"sidereal_longitude":71.9438,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":195.7263,"elapsed_within_tithi_degrees":3.7263},"nakshatra":{"number":6,"name":"Ārdrā","pada":2,"moon_longitude":71.9438,"elapsed_within_degrees":5.2771},"yoga":{"number":24,"name":"Śukla","sum_longitude":308.1613},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.048,"elongation":164.274},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.048,"opposition_distance":15.726}},"eclipse_window_40days":[{"offset_days":13,"type":"solar","occurs":true,"moon_latitude":-0.002,"elongation":1.103}]},"city":{"slug":"chicago","name":"Chicago, USA","lat":41.8781,"lon":-87.6298,"tz_offset_hours":-6,"country":"US","tier":"diaspora"},"tier2":{"city":{"slug":"chicago","name":"Chicago, USA","lat":41.8781,"lon":-87.6298,"tz_offset_hours":-6,"country":"US","tier":"diaspora"},"sunriseLocal":"07:10","sunsetLocal":"16:21","solarNoonLocal":"11:45","dayLengthHours":9.171096417407888,"dayLengthDisplay":"9 Hours 10 Mins 16 Secs","nightLengthDisplay":"14 Hours 49 Mins 44 Secs","moonriseLocal":"17:09","moonsetLocal":"08:18","rahuKala":{"name":"Rāhu Kāla","start":"08:19","end":"09:28","startHours":8.317981339315072,"endHours":9.464368391491059,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:37","end":"11:45","startHours":10.610755443667045,"endHours":11.75714249584303,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"12:54","end":"14:03","startHours":12.903529548019016,"endHours":14.049916600195003,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:19","end":"09:37","startHours":9.31151678453426,"endHours":9.617219998447856,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:33","end":"07:48","startHours":7.553723304531082,"endHours":7.798285875661959,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:27","end":"12:04","startHours":11.451439281929435,"endHours":12.062845709756626,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:57","end":"06:34","startHours":5.948781431484702,"endHours":6.560187859311894,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:24","end":"07:10","startHours":6.407336252355096,"endHours":7.1715942871390865,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:17","end":"13:54","startHours":13.285658565411012,"endHours":13.897064993238205,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"16:09","end":"16:33","startHours":16.142690704546975,"endHours":16.542690704546974,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"16:21","end":"16:43","startHours":16.342690704546975,"endHours":16.72481972193897,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:06","end":"17:51","startHours":16.092690704546975,"endHours":17.842690704546975,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:27","end":"00:04","startHours":23.451439281929435,"endHours":24.062845709756626,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"07:10","end":"08:19","startHours":7.1715942871390865,"endHours":8.317981339315072,"quality":"auspicious"},{"name":"Kāla","start":"08:19","end":"09:28","startHours":8.317981339315072,"endHours":9.464368391491059,"quality":"inauspicious"},{"name":"Śubha","start":"09:28","end":"10:37","startHours":9.464368391491059,"endHours":10.610755443667045,"quality":"auspicious"},{"name":"Roga","start":"10:37","end":"11:45","startHours":10.610755443667045,"endHours":11.75714249584303,"quality":"inauspicious"},{"name":"Udveg","start":"11:45","end":"12:54","startHours":11.75714249584303,"endHours":12.903529548019016,"quality":"inauspicious"},{"name":"Chala","start":"12:54","end":"14:03","startHours":12.903529548019016,"endHours":14.049916600195003,"quality":"neutral"},{"name":"Labha","start":"14:03","end":"15:12","startHours":14.049916600195003,"endHours":15.19630365237099,"quality":"auspicious"},{"name":"Amṛta","start":"15:12","end":"16:21","startHours":15.19630365237099,"endHours":16.342690704546975,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"16:21","end":"18:12","startHours":16.342690704546975,"endHours":18.19630365237099,"quality":"neutral"},{"name":"Labha","start":"18:12","end":"20:03","startHours":18.19630365237099,"endHours":20.049916600195004,"quality":"auspicious"},{"name":"Amṛta","start":"20:03","end":"21:54","startHours":20.049916600195004,"endHours":21.903529548019016,"quality":"auspicious"},{"name":"Kāla","start":"21:54","end":"23:45","startHours":21.903529548019016,"endHours":23.75714249584303,"quality":"inauspicious"},{"name":"Śubha","start":"23:45","end":"01:37","startHours":23.75714249584303,"endHours":25.610755443667045,"quality":"auspicious"},{"name":"Roga","start":"01:37","end":"03:28","startHours":25.610755443667045,"endHours":27.464368391491057,"quality":"inauspicious"},{"name":"Udveg","start":"03:28","end":"05:19","startHours":27.464368391491057,"endHours":29.31798133931507,"quality":"inauspicious"},{"name":"Chala","start":"05:19","end":"07:10","startHours":29.31798133931507,"endHours":31.171594287139087,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"07:10","end":"08:10","startHours":7.1715942871390865,"endHours":8.171594287139087,"planetary_lord":"Moon"},{"name":"Hora 2","start":"08:10","end":"09:10","startHours":8.171594287139087,"endHours":9.171594287139087,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"09:10","end":"10:10","startHours":9.171594287139087,"endHours":10.171594287139087,"planetary_lord":"Venus"},{"name":"Hora 4","start":"10:10","end":"11:10","startHours":10.171594287139087,"endHours":11.171594287139087,"planetary_lord":"Sun"},{"name":"Hora 5","start":"11:10","end":"12:10","startHours":11.171594287139087,"endHours":12.171594287139087,"planetary_lord":"Mars"},{"name":"Hora 6","start":"12:10","end":"13:10","startHours":12.171594287139087,"endHours":13.171594287139087,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"13:10","end":"14:10","startHours":13.171594287139087,"endHours":14.171594287139087,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"14:10","end":"15:10","startHours":14.171594287139087,"endHours":15.171594287139087,"planetary_lord":"Moon"},{"name":"Hora 9","start":"15:10","end":"16:10","startHours":15.171594287139087,"endHours":16.171594287139087,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"16:10","end":"17:10","startHours":16.171594287139087,"endHours":17.171594287139087,"planetary_lord":"Venus"},{"name":"Hora 11","start":"17:10","end":"18:10","startHours":17.171594287139087,"endHours":18.171594287139087,"planetary_lord":"Sun"},{"name":"Hora 12","start":"18:10","end":"19:10","startHours":18.171594287139087,"endHours":19.171594287139087,"planetary_lord":"Mars"},{"name":"Hora 13","start":"19:10","end":"20:10","startHours":19.171594287139087,"endHours":20.171594287139087,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"20:10","end":"21:10","startHours":20.171594287139087,"endHours":21.171594287139087,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"21:10","end":"22:10","startHours":21.171594287139087,"endHours":22.171594287139087,"planetary_lord":"Moon"},{"name":"Hora 16","start":"22:10","end":"23:10","startHours":22.171594287139087,"endHours":23.171594287139087,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"23:10","end":"00:10","startHours":23.171594287139087,"endHours":24.171594287139087,"planetary_lord":"Venus"},{"name":"Hora 18","start":"00:10","end":"01:10","startHours":24.171594287139087,"endHours":25.171594287139087,"planetary_lord":"Sun"},{"name":"Hora 19","start":"01:10","end":"02:10","startHours":25.171594287139087,"endHours":26.171594287139087,"planetary_lord":"Mars"},{"name":"Hora 20","start":"02:10","end":"03:10","startHours":26.171594287139087,"endHours":27.171594287139087,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"03:10","end":"04:10","startHours":27.171594287139087,"endHours":28.171594287139087,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"04:10","end":"05:10","startHours":28.171594287139087,"endHours":29.171594287139087,"planetary_lord":"Moon"},{"name":"Hora 23","start":"05:10","end":"06:10","startHours":29.171594287139087,"endHours":30.171594287139087,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"06:10","end":"07:10","startHours":30.171594287139087,"endHours":31.171594287139087,"planetary_lord":"Venus"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"North-East","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-23.13872484571796,"eotMinutes":5.090650249418121,"ayanamsa":24.3971}},"calendars":{"vikram_samvat":2095,"vikram_samvatsara":"Prajāpati","saka_samvat":1960,"saka_samvatsara":"Kālayukta","bengali_samvat":1445,"malayalam_era":1214,"nanakshahi_year":569,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Mārgaśīrṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛścika (Kārttikai)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Kṛṣṇa Dvitīyā · Vikram 2095 Prajāpati · Śaka 1960 Kālayukta"},"festivals":[],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7, 6.34-35.","step_count":5,"url":"/walk/chandra-walk","steps":[{"label":"BG 6.5","url":"/bhagavad-gita/6/5","purpose":"Lift the self by the Self; begin the walk with inner responsibility."},{"label":"BG 6.6","url":"/bhagavad-gita/6/6","purpose":"See the mind as friend when mastered and enemy when unmastered."},{"label":"BG 6.7","url":"/bhagavad-gita/6/7","purpose":"Stabilize the conquered mind in heat/cold, honor/dishonor, pleasure/pain."},{"label":"BG 6.34","url":"/bhagavad-gita/6/34","purpose":"Name the restless mind honestly before trying to discipline it."},{"label":"BG 6.35","url":"/bhagavad-gita/6/35","purpose":"Complete with abhyāsa and vairāgya: practice and detachment."}]},"reason":"Somavāra (Monday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"chicago"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga December 13, 2038 CE · Chicago, USA · Vidhyamitra","description":"December 13, 2038 CE for Chicago, USA: Kṛṣṇa Dvitīyā, sūryodaya 07:10, sūryāsta 16:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/chicago/2038-12-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/chicago/2038-12-13","sa":"https://sa.vidhyamitra.com/city/chicago/2038-12-13","hi":"https://hi.vidhyamitra.com/city/chicago/2038-12-13","x-default":"https://vidhyamitra.com/city/chicago/2038-12-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-08-10T12:06:44.657Z","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":"2026-08-10T12:06:44.657Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-08-10T12:06:44.657Z","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":["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","reader-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"}}}