{"id":"vidhyamitra:city-day:boston:2018-05-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/boston/2018-05-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2018-05-01","date_display":"May 1, 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":5,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458239.770833,"kali_year":5120,"ahargana":1869774.2708,"sun":{"sidereal_longitude":16.5466,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":210.5196,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":193.973,"elapsed_within_tithi_degrees":1.973},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":210.5196,"elapsed_within_degrees":10.5196},"yoga":{"number":18,"name":"Varīyān","sum_longitude":227.0663},"karana":{"half_tithi_index":32,"name":"Taitila"},"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":2018,"month":5,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2458239.770833,"ahargana":1869774.2708,"kali_year":5120,"ayanamsa_lahiri":24.109,"grahas":{"sun":{"sidereal_longitude":16.527220999999997,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":208.455421,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false,"latitude":4.4293},"mars":{"sidereal_longitude":269.0995210000001,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":349.344121,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":205.08792100000005,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":true},"venus":{"sidereal_longitude":43.35682099999997,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":254.77632100000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":110.3611,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":290.3611,"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":5,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2458239.770833,"kali_year":5120,"ahargana":1869774.2708,"sun":{"sidereal_longitude":16.5466,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":210.5196,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":17,"name":"Dvitīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Dvitīyā","elongation_degrees":193.973,"elapsed_within_tithi_degrees":1.973},"nakshatra":{"number":16,"name":"Viśākhā","pada":4,"moon_longitude":210.5196,"elapsed_within_degrees":10.5196},"yoga":{"number":18,"name":"Varīyān","sum_longitude":227.0663},"karana":{"half_tithi_index":32,"name":"Taitila"},"vara":{"number":4,"name":"Maṅgalavāra (Tuesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.429,"elongation":166.027},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.429,"opposition_distance":13.973}},"eclipse_window_40days":[]},"city":{"slug":"boston","name":"Boston, USA","lat":42.3601,"lon":-71.0589,"tz_offset_hours":-5,"country":"US","tier":"diaspora"},"tier2":{"city":{"slug":"boston","name":"Boston, USA","lat":42.3601,"lon":-71.0589,"tz_offset_hours":-5,"country":"US","tier":"diaspora"},"sunriseLocal":"04:40","sunsetLocal":"18:43","solarNoonLocal":"11:41","dayLengthHours":14.0481935207849,"dayLengthDisplay":"14 Hours 02 Mins 53 Secs","nightLengthDisplay":"9 Hours 57 Mins 07 Secs","moonriseLocal":"19:36","moonsetLocal":"05:22","rahuKala":{"name":"Rāhu Kāla","start":"15:12","end":"16:57","startHours":15.200674924713443,"endHours":16.956699114811556,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"08:11","end":"09:56","startHours":8.176578164320993,"endHours":9.932602354419107,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"11:41","end":"13:27","startHours":11.68862654451722,"endHours":13.444650734615333,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"07:57","end":"08:25","startHours":7.942441605641246,"endHours":8.410714723000742,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:15","end":"05:37","startHours":5.24987118082414,"endHours":5.624489674711738,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:13","end":"12:09","startHours":11.220353427157724,"endHours":12.156899661876716,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"02:47","end":"03:44","startHours":2.791437314686783,"endHours":3.727983549405776,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"03:30","end":"04:40","startHours":3.493846990726028,"endHours":4.6645297841247695,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:02","end":"14:58","startHours":14.029992131314703,"endHours":14.966538366033696,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:31","end":"18:55","startHours":18.51272330490967,"endHours":18.91272330490967,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:43","end":"19:18","startHours":18.71272330490967,"endHours":19.29806470160904,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:28","end":"20:13","startHours":18.46272330490967,"endHours":20.21272330490967,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:13","end":"00:09","startHours":23.220353427157722,"endHours":24.156899661876718,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Roga","start":"04:40","end":"06:25","startHours":4.6645297841247695,"endHours":6.420553974222882,"quality":"inauspicious"},{"name":"Udveg","start":"06:25","end":"08:11","startHours":6.420553974222882,"endHours":8.176578164320993,"quality":"inauspicious"},{"name":"Chala","start":"08:11","end":"09:56","startHours":8.176578164320993,"endHours":9.932602354419107,"quality":"neutral"},{"name":"Labha","start":"09:56","end":"11:41","startHours":9.932602354419107,"endHours":11.68862654451722,"quality":"auspicious"},{"name":"Amṛta","start":"11:41","end":"13:27","startHours":11.68862654451722,"endHours":13.444650734615333,"quality":"auspicious"},{"name":"Kāla","start":"13:27","end":"15:12","startHours":13.444650734615333,"endHours":15.200674924713443,"quality":"inauspicious"},{"name":"Śubha","start":"15:12","end":"16:57","startHours":15.200674924713443,"endHours":16.956699114811556,"quality":"auspicious"},{"name":"Roga","start":"16:57","end":"18:43","startHours":16.956699114811556,"endHours":18.71272330490967,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Kāla","start":"18:43","end":"19:57","startHours":18.71272330490967,"endHours":19.956699114811556,"quality":"inauspicious"},{"name":"Śubha","start":"19:57","end":"21:12","startHours":19.956699114811556,"endHours":21.200674924713447,"quality":"auspicious"},{"name":"Roga","start":"21:12","end":"22:27","startHours":21.200674924713447,"endHours":22.444650734615333,"quality":"inauspicious"},{"name":"Udveg","start":"22:27","end":"23:41","startHours":22.444650734615333,"endHours":23.68862654451722,"quality":"inauspicious"},{"name":"Chala","start":"23:41","end":"00:56","startHours":23.68862654451722,"endHours":24.932602354419107,"quality":"neutral"},{"name":"Labha","start":"00:56","end":"02:11","startHours":24.932602354419107,"endHours":26.176578164320993,"quality":"auspicious"},{"name":"Amṛta","start":"02:11","end":"03:25","startHours":26.176578164320993,"endHours":27.420553974222884,"quality":"auspicious"},{"name":"Kāla","start":"03:25","end":"04:40","startHours":27.420553974222884,"endHours":28.66452978412477,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"04:40","end":"05:40","startHours":4.6645297841247695,"endHours":5.6645297841247695,"planetary_lord":"Mars"},{"name":"Hora 2","start":"05:40","end":"06:40","startHours":5.6645297841247695,"endHours":6.6645297841247695,"planetary_lord":"Jupiter"},{"name":"Hora 3","start":"06:40","end":"07:40","startHours":6.6645297841247695,"endHours":7.6645297841247695,"planetary_lord":"Saturn"},{"name":"Hora 4","start":"07:40","end":"08:40","startHours":7.6645297841247695,"endHours":8.66452978412477,"planetary_lord":"Moon"},{"name":"Hora 5","start":"08:40","end":"09:40","startHours":8.66452978412477,"endHours":9.66452978412477,"planetary_lord":"Mercury"},{"name":"Hora 6","start":"09:40","end":"10:40","startHours":9.66452978412477,"endHours":10.66452978412477,"planetary_lord":"Venus"},{"name":"Hora 7","start":"10:40","end":"11:40","startHours":10.66452978412477,"endHours":11.66452978412477,"planetary_lord":"Sun"},{"name":"Hora 8","start":"11:40","end":"12:40","startHours":11.66452978412477,"endHours":12.66452978412477,"planetary_lord":"Mars"},{"name":"Hora 9","start":"12:40","end":"13:40","startHours":12.66452978412477,"endHours":13.66452978412477,"planetary_lord":"Jupiter"},{"name":"Hora 10","start":"13:40","end":"14:40","startHours":13.66452978412477,"endHours":14.66452978412477,"planetary_lord":"Saturn"},{"name":"Hora 11","start":"14:40","end":"15:40","startHours":14.66452978412477,"endHours":15.66452978412477,"planetary_lord":"Moon"},{"name":"Hora 12","start":"15:40","end":"16:40","startHours":15.66452978412477,"endHours":16.66452978412477,"planetary_lord":"Mercury"},{"name":"Hora 13","start":"16:40","end":"17:40","startHours":16.66452978412477,"endHours":17.66452978412477,"planetary_lord":"Venus"},{"name":"Hora 14","start":"17:40","end":"18:40","startHours":17.66452978412477,"endHours":18.66452978412477,"planetary_lord":"Sun"},{"name":"Hora 15","start":"18:40","end":"19:40","startHours":18.66452978412477,"endHours":19.66452978412477,"planetary_lord":"Mars"},{"name":"Hora 16","start":"19:40","end":"20:40","startHours":19.66452978412477,"endHours":20.66452978412477,"planetary_lord":"Jupiter"},{"name":"Hora 17","start":"20:40","end":"21:40","startHours":20.66452978412477,"endHours":21.66452978412477,"planetary_lord":"Saturn"},{"name":"Hora 18","start":"21:40","end":"22:40","startHours":21.66452978412477,"endHours":22.66452978412477,"planetary_lord":"Moon"},{"name":"Hora 19","start":"22:40","end":"23:40","startHours":22.66452978412477,"endHours":23.66452978412477,"planetary_lord":"Mercury"},{"name":"Hora 20","start":"23:40","end":"00:40","startHours":23.66452978412477,"endHours":24.66452978412477,"planetary_lord":"Venus"},{"name":"Hora 21","start":"00:40","end":"01:40","startHours":24.66452978412477,"endHours":25.66452978412477,"planetary_lord":"Sun"},{"name":"Hora 22","start":"01:40","end":"02:40","startHours":25.66452978412477,"endHours":26.66452978412477,"planetary_lord":"Mars"},{"name":"Hora 23","start":"02:40","end":"03:40","startHours":26.66452978412477,"endHours":27.66452978412477,"planetary_lord":"Jupiter"},{"name":"Hora 24","start":"03:40","end":"04:40","startHours":27.66452978412477,"endHours":28.66452978412477,"planetary_lord":"Saturn"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Hasta","Citrā","Svātī","Viśākhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"North (Uttara)","chandraVasa":"North","rahuVasa":"North","anandadiYoga":{"name":"Mātaṇga","quality":"Auspicious"},"drikRitu":"Vasanta (Spring) (Drik)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":15.01221032936268,"eotMinutes":2.918007328966811,"ayanamsa":24.109}},"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 Kṛṣṇa Pakṣa","solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Kṛṣṇa Dvitīyā · Vikram 2075 Virodhakṛt · Śaka 1940 Vilambī"},"festivals":[{"id":"mesha-sankranti","name":"Meṣa Saṅkrānti (Vaiśākhī / Vishu / Pohelā Boishākh / Bihu)","name_sanskrit":"मेष सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aries; solar new year. Regional: Vaiśākhī (Punjab) · Vishu (Kerala) · Pohelā Boishākh (Bengal) · Bihu (Assam) · Tamil Puthāṇḍu.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":1},{"id":"baisakhi","name":"Baisakhi (Vaiśākhī)","name_sanskrit":"वैशाखी","tradition":"Regional","associated_deity":"Sūrya + Khalsa Pantha (Sikh)","significance":"Punjab New Year + Sikh Khalsa founding day.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":2}],"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":"Maṅgalavāra (Tuesday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Viśākhā","url":"/day/-0562-04-11","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"boston"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga May 1, 2018 CE · Boston, USA · Vidhyamitra","description":"May 1, 2018 CE for Boston, USA: Kṛṣṇa Dvitīyā, sūryodaya 04:40, sūryāsta 18:43.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/boston/2018-05-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/boston/2018-05-01","sa":"https://sa.vidhyamitra.com/city/boston/2018-05-01","hi":"https://hi.vidhyamitra.com/city/boston/2018-05-01","x-default":"https://vidhyamitra.com/city/boston/2018-05-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T12:42:50.353Z","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":"2026-05-15T12:42:50.353Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T12:42:50.353Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}