{"id":"vidhyamitra:city-day:phoenix:2018-04-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/phoenix/2018-04-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2018-04-20","date_display":"April 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":4,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458228.770833,"kali_year":5120,"ahargana":1869763.2708,"sun":{"sidereal_longitude":5.8856,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":56.4085,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":50.5229,"elapsed_within_tithi_degrees":2.5229},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1,"moon_longitude":56.4085,"elapsed_within_degrees":3.0752},"yoga":{"number":5,"name":"Śobhana","sum_longitude":62.2941},"karana":{"half_tithi_index":8,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"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":4,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458228.770833,"ahargana":1869763.2708,"kali_year":5120,"ayanamsa_lahiri":24.1086,"grahas":{"sun":{"sidereal_longitude":5.816541000000029,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":57.86554100000001,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":2},"retrograde":false,"latitude":-3.6639},"mars":{"sidereal_longitude":263.753341,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":341.364941,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":206.38754100000006,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":29.98454099999998,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":254.907241,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":110.944,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":290.944,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":2018,"month":4,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458228.770833,"kali_year":5120,"ahargana":1869763.2708,"sun":{"sidereal_longitude":5.8856,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":56.4085,"rashi":2,"rashi_name":"Vṛṣabha"},"tithi":{"number":5,"name":"Pañcamī","paksha":"Śukla","full_name":"Śukla Pañcamī","elongation_degrees":50.5229,"elapsed_within_tithi_degrees":2.5229},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":1,"moon_longitude":56.4085,"elapsed_within_degrees":3.0752},"yoga":{"number":5,"name":"Śobhana","sum_longitude":62.2941},"karana":{"half_tithi_index":8,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.664,"elongation":50.523},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.664,"opposition_distance":129.477}},"eclipse_window_40days":[]},"city":{"slug":"phoenix","name":"Phoenix, USA","lat":33.4484,"lon":-112.074,"tz_offset_hours":-7,"country":"US","tier":"diaspora"},"tier2":{"city":{"slug":"phoenix","name":"Phoenix, USA","lat":33.4484,"lon":-112.074,"tz_offset_hours":-7,"country":"US","tier":"diaspora"},"sunriseLocal":"05:52","sunsetLocal":"19:02","solarNoonLocal":"12:27","dayLengthHours":13.161909863304025,"dayLengthDisplay":"13 Hours 09 Mins 43 Secs","nightLengthDisplay":"10 Hours 50 Mins 17 Secs","moonriseLocal":"08:47","moonsetLocal":"23:04","rahuKala":{"name":"Rāhu Kāla","start":"10:49","end":"12:27","startHours":10.81023187599298,"endHours":12.455470608905983,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:45","end":"17:23","startHours":15.745948074731988,"endHours":17.391186807644992,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:31","end":"09:10","startHours":7.519754410166973,"endHours":9.164993143079975,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:57","end":"09:23","startHours":8.945627978691576,"endHours":9.384358307468377,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:25","end":"06:46","startHours":6.422928588224971,"endHours":6.773912851246411,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:01","end":"12:54","startHours":12.016740280129182,"endHours":12.894200937682784,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:07","end":"05:00","startHours":4.119594362146767,"endHours":4.997055019700368,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:47","end":"05:52","startHours":4.7776898553119675,"endHours":5.87451567725397,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:39","end":"15:32","startHours":14.649122252789986,"endHours":15.526582910343588,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:50","end":"19:14","startHours":18.836425540557997,"endHours":19.236425540557995,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:02","end":"19:35","startHours":19.036425540557996,"endHours":19.584838451529,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:47","end":"20:32","startHours":18.786425540557996,"endHours":20.536425540557996,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:01","end":"00:54","startHours":24.016740280129184,"endHours":24.894200937682783,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"05:52","end":"07:31","startHours":5.87451567725397,"endHours":7.519754410166973,"quality":"neutral"},{"name":"Labha","start":"07:31","end":"09:10","startHours":7.519754410166973,"endHours":9.164993143079975,"quality":"auspicious"},{"name":"Amṛta","start":"09:10","end":"10:49","startHours":9.164993143079975,"endHours":10.81023187599298,"quality":"auspicious"},{"name":"Kāla","start":"10:49","end":"12:27","startHours":10.81023187599298,"endHours":12.455470608905983,"quality":"inauspicious"},{"name":"Śubha","start":"12:27","end":"14:06","startHours":12.455470608905983,"endHours":14.100709341818987,"quality":"auspicious"},{"name":"Roga","start":"14:06","end":"15:45","startHours":14.100709341818987,"endHours":15.745948074731988,"quality":"inauspicious"},{"name":"Udveg","start":"15:45","end":"17:23","startHours":15.745948074731988,"endHours":17.391186807644992,"quality":"inauspicious"},{"name":"Chala","start":"17:23","end":"19:02","startHours":17.391186807644992,"endHours":19.036425540557996,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"19:02","end":"20:23","startHours":19.036425540557996,"endHours":20.391186807644992,"quality":"inauspicious"},{"name":"Udveg","start":"20:23","end":"21:45","startHours":20.391186807644992,"endHours":21.74594807473199,"quality":"inauspicious"},{"name":"Chala","start":"21:45","end":"23:06","startHours":21.74594807473199,"endHours":23.100709341818987,"quality":"neutral"},{"name":"Labha","start":"23:06","end":"00:27","startHours":23.100709341818987,"endHours":24.455470608905983,"quality":"auspicious"},{"name":"Amṛta","start":"00:27","end":"01:49","startHours":24.455470608905983,"endHours":25.81023187599298,"quality":"auspicious"},{"name":"Kāla","start":"01:49","end":"03:10","startHours":25.81023187599298,"endHours":27.164993143079975,"quality":"inauspicious"},{"name":"Śubha","start":"03:10","end":"04:31","startHours":27.164993143079975,"endHours":28.519754410166975,"quality":"auspicious"},{"name":"Roga","start":"04:31","end":"05:52","startHours":28.519754410166975,"endHours":29.87451567725397,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:52","end":"06:52","startHours":5.87451567725397,"endHours":6.87451567725397,"planetary_lord":"Venus"},{"name":"Hora 2","start":"06:52","end":"07:52","startHours":6.87451567725397,"endHours":7.87451567725397,"planetary_lord":"Sun"},{"name":"Hora 3","start":"07:52","end":"08:52","startHours":7.87451567725397,"endHours":8.87451567725397,"planetary_lord":"Mars"},{"name":"Hora 4","start":"08:52","end":"09:52","startHours":8.87451567725397,"endHours":9.87451567725397,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"09:52","end":"10:52","startHours":9.87451567725397,"endHours":10.87451567725397,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"10:52","end":"11:52","startHours":10.87451567725397,"endHours":11.87451567725397,"planetary_lord":"Moon"},{"name":"Hora 7","start":"11:52","end":"12:52","startHours":11.87451567725397,"endHours":12.87451567725397,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"12:52","end":"13:52","startHours":12.87451567725397,"endHours":13.87451567725397,"planetary_lord":"Venus"},{"name":"Hora 9","start":"13:52","end":"14:52","startHours":13.87451567725397,"endHours":14.87451567725397,"planetary_lord":"Sun"},{"name":"Hora 10","start":"14:52","end":"15:52","startHours":14.87451567725397,"endHours":15.87451567725397,"planetary_lord":"Mars"},{"name":"Hora 11","start":"15:52","end":"16:52","startHours":15.87451567725397,"endHours":16.87451567725397,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"16:52","end":"17:52","startHours":16.87451567725397,"endHours":17.87451567725397,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"17:52","end":"18:52","startHours":17.87451567725397,"endHours":18.87451567725397,"planetary_lord":"Moon"},{"name":"Hora 14","start":"18:52","end":"19:52","startHours":18.87451567725397,"endHours":19.87451567725397,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"19:52","end":"20:52","startHours":19.87451567725397,"endHours":20.87451567725397,"planetary_lord":"Venus"},{"name":"Hora 16","start":"20:52","end":"21:52","startHours":20.87451567725397,"endHours":21.87451567725397,"planetary_lord":"Sun"},{"name":"Hora 17","start":"21:52","end":"22:52","startHours":21.87451567725397,"endHours":22.87451567725397,"planetary_lord":"Mars"},{"name":"Hora 18","start":"22:52","end":"23:52","startHours":22.87451567725397,"endHours":23.87451567725397,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"23:52","end":"00:52","startHours":23.87451567725397,"endHours":24.87451567725397,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"00:52","end":"01:52","startHours":24.87451567725397,"endHours":25.87451567725397,"planetary_lord":"Moon"},{"name":"Hora 21","start":"01:52","end":"02:52","startHours":25.87451567725397,"endHours":26.87451567725397,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"02:52","end":"03:52","startHours":26.87451567725397,"endHours":27.87451567725397,"planetary_lord":"Venus"},{"name":"Hora 23","start":"03:52","end":"04:52","startHours":27.87451567725397,"endHours":28.87451567725397,"planetary_lord":"Sun"},{"name":"Hora 24","start":"04:52","end":"05:52","startHours":28.87451567725397,"endHours":29.87451567725397,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Karka","Tulā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Mithuna","Siṃha","Kanyā","Dhanu","Makara"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"South-East","anandadiYoga":{"name":"Rākṣasa","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":11.44434800538248,"eotMinutes":0.9677634656409275,"ayanamsa":24.1086}},"calendars":{"vikram_samvat":2075,"vikram_samvatsara":"Virodhakṛt","saka_samvat":1940,"saka_samvatsara":"Vilambī","bengali_samvat":1425,"malayalam_era":1194,"nanakshahi_year":549,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Vaiśākha","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":"Vaiśākha Śukla Pañcamī · Vikram 2075 Virodhakṛt · Śaka 1940 Vilambī"},"festivals":[{"id":"shankara-jayanti","name":"Ādi Śaṅkarācārya Jayantī","name_sanskrit":"आदि शङ्कराचार्य जयन्ती","tradition":"Smarta","associated_deity":"Ādi Śaṅkarācārya","significance":"Birth of Ādi Śaṅkara at Kāladī, Kerala; Advaita-pratiṣṭhāpaka.","vrata":false,"detection":{"tithi_number":5,"tithi_paksha":"Śukla","lunar_month":"Vaiśākha"},"precedence":3}],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"phoenix"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga April 20, 2018 CE · Phoenix, USA · Vidhyamitra","description":"April 20, 2018 CE for Phoenix, USA: Śukla Pañcamī, sūryodaya 05:52, sūryāsta 19:02.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/phoenix/2018-04-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/phoenix/2018-04-20","sa":"https://sa.vidhyamitra.com/city/phoenix/2018-04-20","hi":"https://hi.vidhyamitra.com/city/phoenix/2018-04-20","x-default":"https://vidhyamitra.com/city/phoenix/2018-04-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T04:02:31.256Z","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":"2026-06-02T04:02:31.256Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T04:02:31.256Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}