{"id":"vidhyamitra:city-day:chicago:2018-06-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/chicago/2018-06-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2018-06-20","date_display":"June 20, 2018 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":2018,"month":6,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458289.770833,"kali_year":5120,"ahargana":1869824.2708,"sun":{"sidereal_longitude":64.2865,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":146.2052,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":81.9187,"elapsed_within_tithi_degrees":9.9187},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4,"moon_longitude":146.2052,"elapsed_within_degrees":12.8719},"yoga":{"number":16,"name":"Siddhi","sum_longitude":210.4917},"karana":{"half_tithi_index":13,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":2018,"month":6,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458289.770833,"ahargana":1869824.2708,"kali_year":5120,"ayanamsa_lahiri":24.111,"grahas":{"sun":{"sidereal_longitude":64.58611099999996,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":149.373311,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false,"latitude":2.7991},"mars":{"sidereal_longitude":284.568311,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":true},"mercury":{"sidereal_longitude":80.07301100000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":199.73481100000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":true},"venus":{"sidereal_longitude":102.77251100000001,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":252.17731100000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":107.7119,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":287.7119,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":"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":2018,"month":6,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458289.770833,"kali_year":5120,"ahargana":1869824.2708,"sun":{"sidereal_longitude":64.2865,"rashi":3,"rashi_name":"Mithuna"},"moon":{"sidereal_longitude":146.2052,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":7,"name":"Saptamī","paksha":"Śukla","full_name":"Śukla Saptamī","elongation_degrees":81.9187,"elapsed_within_tithi_degrees":9.9187},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":4,"moon_longitude":146.2052,"elapsed_within_degrees":12.8719},"yoga":{"number":16,"name":"Siddhi","sum_longitude":210.4917},"karana":{"half_tithi_index":13,"name":"Vaṇija"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.799,"elongation":81.919},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.799,"opposition_distance":98.081}},"eclipse_window_40days":[]},"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":"04:15","sunsetLocal":"19:29","solarNoonLocal":"11:52","dayLengthHours":15.225760560719856,"dayLengthDisplay":"15 Hours 13 Mins 33 Secs","nightLengthDisplay":"8 Hours 46 Mins 27 Secs","moonriseLocal":"11:18","moonsetLocal":"23:43","rahuKala":{"name":"Rāhu Kāla","start":"11:52","end":"13:46","startHours":11.862603992115165,"endHours":13.765824062205148,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:09","end":"08:03","startHours":6.152943781845219,"endHours":8.056163851935201,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:58","end":"11:52","startHours":9.959383922025182,"endHours":11.862603992115165,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"07:48","end":"08:19","startHours":7.802401175923204,"endHours":8.309926527947198,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"04:53","end":"05:17","startHours":4.884130401785232,"endHours":5.290150683404428,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:21","end":"12:22","startHours":11.35507864009117,"endHours":12.37012934413916,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"02:13","end":"03:14","startHours":2.2196223036592566,"endHours":3.234673007707247,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"02:59","end":"04:15","startHours":2.9809103316952497,"endHours":4.249723711755237,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:24","end":"15:25","startHours":14.40023075223514,"endHours":15.41528145628313,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:17","end":"19:41","startHours":19.275484272475094,"endHours":19.675484272475092,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:29","end":"20:07","startHours":19.475484272475093,"endHours":20.109890962505087,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:14","end":"20:59","startHours":19.225484272475093,"endHours":20.975484272475093,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:21","end":"00:22","startHours":23.35507864009117,"endHours":24.370129344139162,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"04:15","end":"06:09","startHours":4.249723711755237,"endHours":6.152943781845219,"quality":"auspicious"},{"name":"Amṛta","start":"06:09","end":"08:03","startHours":6.152943781845219,"endHours":8.056163851935201,"quality":"auspicious"},{"name":"Kāla","start":"08:03","end":"09:58","startHours":8.056163851935201,"endHours":9.959383922025182,"quality":"inauspicious"},{"name":"Śubha","start":"09:58","end":"11:52","startHours":9.959383922025182,"endHours":11.862603992115165,"quality":"auspicious"},{"name":"Roga","start":"11:52","end":"13:46","startHours":11.862603992115165,"endHours":13.765824062205148,"quality":"inauspicious"},{"name":"Udveg","start":"13:46","end":"15:40","startHours":13.765824062205148,"endHours":15.669044132295129,"quality":"inauspicious"},{"name":"Chala","start":"15:40","end":"17:34","startHours":15.669044132295129,"endHours":17.57226420238511,"quality":"neutral"},{"name":"Labha","start":"17:34","end":"19:29","startHours":17.57226420238511,"endHours":19.475484272475093,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"19:29","end":"20:34","startHours":19.475484272475093,"endHours":20.57226420238511,"quality":"inauspicious"},{"name":"Chala","start":"20:34","end":"21:40","startHours":20.57226420238511,"endHours":21.669044132295127,"quality":"neutral"},{"name":"Labha","start":"21:40","end":"22:46","startHours":21.669044132295127,"endHours":22.765824062205148,"quality":"auspicious"},{"name":"Amṛta","start":"22:46","end":"23:52","startHours":22.765824062205148,"endHours":23.862603992115165,"quality":"auspicious"},{"name":"Kāla","start":"23:52","end":"00:58","startHours":23.862603992115165,"endHours":24.959383922025182,"quality":"inauspicious"},{"name":"Śubha","start":"00:58","end":"02:03","startHours":24.959383922025182,"endHours":26.056163851935203,"quality":"auspicious"},{"name":"Roga","start":"02:03","end":"03:09","startHours":26.056163851935203,"endHours":27.15294378184522,"quality":"inauspicious"},{"name":"Udveg","start":"03:09","end":"04:15","startHours":27.15294378184522,"endHours":28.249723711755237,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"04:15","end":"05:15","startHours":4.249723711755237,"endHours":5.249723711755237,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"05:15","end":"06:15","startHours":5.249723711755237,"endHours":6.249723711755237,"planetary_lord":"Venus"},{"name":"Hora 3","start":"06:15","end":"07:15","startHours":6.249723711755237,"endHours":7.249723711755237,"planetary_lord":"Sun"},{"name":"Hora 4","start":"07:15","end":"08:15","startHours":7.249723711755237,"endHours":8.249723711755237,"planetary_lord":"Mars"},{"name":"Hora 5","start":"08:15","end":"09:15","startHours":8.249723711755237,"endHours":9.249723711755237,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"09:15","end":"10:15","startHours":9.249723711755237,"endHours":10.249723711755237,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"10:15","end":"11:15","startHours":10.249723711755237,"endHours":11.249723711755237,"planetary_lord":"Moon"},{"name":"Hora 8","start":"11:15","end":"12:15","startHours":11.249723711755237,"endHours":12.249723711755237,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"12:15","end":"13:15","startHours":12.249723711755237,"endHours":13.249723711755237,"planetary_lord":"Venus"},{"name":"Hora 10","start":"13:15","end":"14:15","startHours":13.249723711755237,"endHours":14.249723711755237,"planetary_lord":"Sun"},{"name":"Hora 11","start":"14:15","end":"15:15","startHours":14.249723711755237,"endHours":15.249723711755237,"planetary_lord":"Mars"},{"name":"Hora 12","start":"15:15","end":"16:15","startHours":15.249723711755237,"endHours":16.249723711755237,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"16:15","end":"17:15","startHours":16.249723711755237,"endHours":17.249723711755237,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"17:15","end":"18:15","startHours":17.249723711755237,"endHours":18.249723711755237,"planetary_lord":"Moon"},{"name":"Hora 15","start":"18:15","end":"19:15","startHours":18.249723711755237,"endHours":19.249723711755237,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"19:15","end":"20:15","startHours":19.249723711755237,"endHours":20.249723711755237,"planetary_lord":"Venus"},{"name":"Hora 17","start":"20:15","end":"21:15","startHours":20.249723711755237,"endHours":21.249723711755237,"planetary_lord":"Sun"},{"name":"Hora 18","start":"21:15","end":"22:15","startHours":21.249723711755237,"endHours":22.249723711755237,"planetary_lord":"Mars"},{"name":"Hora 19","start":"22:15","end":"23:15","startHours":22.249723711755237,"endHours":23.249723711755237,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"23:15","end":"00:15","startHours":23.249723711755237,"endHours":24.249723711755237,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"00:15","end":"01:15","startHours":24.249723711755237,"endHours":25.249723711755237,"planetary_lord":"Moon"},{"name":"Hora 22","start":"01:15","end":"02:15","startHours":25.249723711755237,"endHours":26.249723711755237,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"02:15","end":"03:15","startHours":26.249723711755237,"endHours":27.249723711755237,"planetary_lord":"Venus"},{"name":"Hora 24","start":"03:15","end":"04:15","startHours":27.249723711755237,"endHours":28.249723711755237,"planetary_lord":"Sun"}],"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":"North (Uttara)","chandraVasa":"West","rahuVasa":"South-West","anandadiYoga":{"name":"Gada","quality":"Inauspicious"},"drikRitu":"Grīṣma (Summer)","vedicRitu":"Grīṣma (Summer)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":23.430078784758592,"eotMinutes":-1.2370395269098728,"ayanamsa":24.111}},"calendars":{"vikram_samvat":2075,"vikram_samvatsara":"Virodhakṛt","saka_samvat":1940,"saka_samvatsara":"Vilambī","bengali_samvat":1425,"malayalam_era":1194,"nanakshahi_year":549,"lunar_month":"Āṣāḍha","lunar_month_paksha_full":"Āṣāḍha Śukla Pakṣa","solar_month":"Mithuna (Āni)","ritu":"Grīṣma (Summer)","display_summary":"Āṣāḍha Śukla Saptamī · Vikram 2075 Virodhakṛt · Śaka 1940 Vilambī"},"festivals":[{"id":"mithuna-sankranti","name":"Mithuna Saṅkrānti","name_sanskrit":"मिथुन सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Gemini.","vrata":false,"detection":{"sun_rashi":"Mithuna"},"precedence":5}],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — 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 June 20, 2018 CE · Chicago, USA · Vidhyamitra","description":"June 20, 2018 CE for Chicago, USA: Śukla Saptamī, sūryodaya 04:15, sūryāsta 19:29.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/chicago/2018-06-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/chicago/2018-06-20","sa":"https://sa.vidhyamitra.com/city/chicago/2018-06-20","hi":"https://hi.vidhyamitra.com/city/chicago/2018-06-20","x-default":"https://vidhyamitra.com/city/chicago/2018-06-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T14:23:49.114Z","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":"2026-05-15T14:23:49.114Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T14:23:49.114Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}