{"id":"vidhyamitra:city-day:jamnagar:2181-04-15:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/jamnagar/2181-04-15","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2181-04-15","date_display":"April 15, 2181 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":2181,"month":4,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517758.770833,"kali_year":5282,"ahargana":1929293.2708,"sun":{"sidereal_longitude":358.8884,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":13.1395,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":14.2512,"elapsed_within_tithi_degrees":2.2512},"nakshatra":{"number":1,"name":"Aśvinī","pada":4,"moon_longitude":13.1395,"elapsed_within_degrees":13.1395},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":12.0279},"karana":{"half_tithi_index":2,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":2181,"month":4,"day":15,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2517758.770833,"ahargana":1929293.2708,"kali_year":5282,"ayanamsa_lahiri":26.3854,"grahas":{"sun":{"sidereal_longitude":359.173757,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":11.042957000000001,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false,"latitude":0.2837},"mars":{"sidereal_longitude":74.68255699999997,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":14.487157000000025,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":103.87845700000003,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"venus":{"sidereal_longitude":13.654357000000005,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":76.30965700000002,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":196.7581,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":16.7581,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"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":2181,"month":4,"day":15,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2517758.770833,"kali_year":5282,"ahargana":1929293.2708,"sun":{"sidereal_longitude":358.8884,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":13.1395,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":2,"name":"Dvitīyā","paksha":"Śukla","full_name":"Śukla Dvitīyā","elongation_degrees":14.2512,"elapsed_within_tithi_degrees":2.2512},"nakshatra":{"number":1,"name":"Aśvinī","pada":4,"moon_longitude":13.1395,"elapsed_within_degrees":13.1395},"yoga":{"number":1,"name":"Viṣkambha","sum_longitude":12.0279},"karana":{"half_tithi_index":2,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":0.284,"elongation":14.251},"lunar":{"type":"lunar","occurs":false,"moon_latitude":0.284,"opposition_distance":165.749}},"eclipse_window_40days":[{"offset_days":-1,"type":"solar","occurs":true,"moon_latitude":1.281,"elongation":2.34}]},"city":{"slug":"jamnagar","name":"Jamnagar, Gujarat","lat":22.4707,"lon":70.0577,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"jamnagar","name":"Jamnagar, Gujarat","lat":22.4707,"lon":70.0577,"tz_offset_hours":5.5,"state":"Gujarat","country":"IN","tier":"tier-1"},"sunriseLocal":"06:30","sunsetLocal":"19:10","solarNoonLocal":"12:50","dayLengthHours":12.673247437319374,"dayLengthDisplay":"12 Hours 40 Mins 24 Secs","nightLengthDisplay":"11 Hours 19 Mins 36 Secs","moonriseLocal":"07:11","moonsetLocal":"20:04","rahuKala":{"name":"Rāhu Kāla","start":"17:35","end":"19:10","startHours":17.58595652329155,"endHours":19.170112452956474,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:50","end":"14:25","startHours":12.833488734296786,"endHours":14.41764466396171,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"16:00","end":"17:35","startHours":16.00180059362663,"endHours":17.58595652329155,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:27","end":"09:53","startHours":9.453956084344954,"endHours":9.876397665588932,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:01","end":"07:22","startHours":7.024916992192074,"endHours":7.362870257187257,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:25","end":"13:15","startHours":12.411047153052808,"endHours":13.255930315540764,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:48","end":"05:39","startHours":4.807098690661183,"endHours":5.651981853149142,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:26","end":"06:30","startHours":5.4407610625271525,"endHours":6.4968650156371,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:57","end":"15:47","startHours":14.945696640516683,"endHours":15.790579803004642,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:58","end":"19:22","startHours":18.970112452956474,"endHours":19.370112452956473,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:10","end":"19:42","startHours":19.170112452956474,"endHours":19.698164429511447,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:55","end":"20:40","startHours":18.920112452956474,"endHours":20.670112452956474,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:25","end":"01:15","startHours":24.411047153052806,"endHours":25.255930315540766,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:30","end":"08:05","startHours":6.4968650156371,"endHours":8.081020945302022,"quality":"inauspicious"},{"name":"Chala","start":"08:05","end":"09:40","startHours":8.081020945302022,"endHours":9.665176874966944,"quality":"neutral"},{"name":"Labha","start":"09:40","end":"11:15","startHours":9.665176874966944,"endHours":11.249332804631866,"quality":"auspicious"},{"name":"Amṛta","start":"11:15","end":"12:50","startHours":11.249332804631866,"endHours":12.833488734296786,"quality":"auspicious"},{"name":"Kāla","start":"12:50","end":"14:25","startHours":12.833488734296786,"endHours":14.41764466396171,"quality":"inauspicious"},{"name":"Śubha","start":"14:25","end":"16:00","startHours":14.41764466396171,"endHours":16.00180059362663,"quality":"auspicious"},{"name":"Roga","start":"16:00","end":"17:35","startHours":16.00180059362663,"endHours":17.58595652329155,"quality":"inauspicious"},{"name":"Udveg","start":"17:35","end":"19:10","startHours":17.58595652329155,"endHours":19.170112452956474,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"19:10","end":"20:35","startHours":19.170112452956474,"endHours":20.585956523291554,"quality":"auspicious"},{"name":"Roga","start":"20:35","end":"22:00","startHours":20.585956523291554,"endHours":22.00180059362663,"quality":"inauspicious"},{"name":"Udveg","start":"22:00","end":"23:25","startHours":22.00180059362663,"endHours":23.41764466396171,"quality":"inauspicious"},{"name":"Chala","start":"23:25","end":"00:50","startHours":23.41764466396171,"endHours":24.833488734296786,"quality":"neutral"},{"name":"Labha","start":"00:50","end":"02:15","startHours":24.833488734296786,"endHours":26.249332804631866,"quality":"auspicious"},{"name":"Amṛta","start":"02:15","end":"03:40","startHours":26.249332804631866,"endHours":27.665176874966946,"quality":"auspicious"},{"name":"Kāla","start":"03:40","end":"05:05","startHours":27.665176874966946,"endHours":29.081020945302022,"quality":"inauspicious"},{"name":"Śubha","start":"05:05","end":"06:30","startHours":29.081020945302022,"endHours":30.4968650156371,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:30","end":"07:30","startHours":6.4968650156371,"endHours":7.4968650156371,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:30","end":"08:30","startHours":7.4968650156371,"endHours":8.4968650156371,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:30","end":"09:30","startHours":8.4968650156371,"endHours":9.4968650156371,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:30","end":"10:30","startHours":9.4968650156371,"endHours":10.4968650156371,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:30","end":"11:30","startHours":10.4968650156371,"endHours":11.4968650156371,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:30","end":"12:30","startHours":11.4968650156371,"endHours":12.4968650156371,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:30","end":"13:30","startHours":12.4968650156371,"endHours":13.4968650156371,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:30","end":"14:30","startHours":13.4968650156371,"endHours":14.4968650156371,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:30","end":"15:30","startHours":14.4968650156371,"endHours":15.4968650156371,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:30","end":"16:30","startHours":15.4968650156371,"endHours":16.4968650156371,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:30","end":"17:30","startHours":16.4968650156371,"endHours":17.4968650156371,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:30","end":"18:30","startHours":17.4968650156371,"endHours":18.4968650156371,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:30","end":"19:30","startHours":18.4968650156371,"endHours":19.4968650156371,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:30","end":"20:30","startHours":19.4968650156371,"endHours":20.4968650156371,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:30","end":"21:30","startHours":20.4968650156371,"endHours":21.4968650156371,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:30","end":"22:30","startHours":21.4968650156371,"endHours":22.4968650156371,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:30","end":"23:30","startHours":22.4968650156371,"endHours":23.4968650156371,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:30","end":"00:30","startHours":23.4968650156371,"endHours":24.4968650156371,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:30","end":"01:30","startHours":24.4968650156371,"endHours":25.4968650156371,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:30","end":"02:30","startHours":25.4968650156371,"endHours":26.4968650156371,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:30","end":"03:30","startHours":26.4968650156371,"endHours":27.4968650156371,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:30","end":"04:30","startHours":27.4968650156371,"endHours":28.4968650156371,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:30","end":"05:30","startHours":28.4968650156371,"endHours":29.4968650156371,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:30","end":"06:30","startHours":29.4968650156371,"endHours":30.4968650156371,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","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":"West (Paścim)","chandraVasa":"East","rahuVasa":"North-East","anandadiYoga":{"name":"Ānanda","quality":"Auspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":9.880789438434654,"eotMinutes":-0.240124057807095,"ayanamsa":26.3854}},"calendars":{"vikram_samvat":2238,"vikram_samvatsara":"Jaya","saka_samvat":2103,"saka_samvatsara":"Vṛṣa","bengali_samvat":1588,"malayalam_era":1357,"nanakshahi_year":712,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Dvitīyā · Vikram 2238 Jaya · Śaka 2103 Vṛṣa"},"festivals":[],"todays_walk":{"walk":{"id":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Ravivāra (Sunday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"jamnagar"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga April 15, 2181 CE · Jamnagar, Gujarat · Vidhyamitra","description":"April 15, 2181 CE for Jamnagar, Gujarat: Śukla Dvitīyā, sūryodaya 06:30, sūryāsta 19:10.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/jamnagar/2181-04-15","hreflang_alternates":{"en":"https://vidhyamitra.com/city/jamnagar/2181-04-15","sa":"https://sa.vidhyamitra.com/city/jamnagar/2181-04-15","hi":"https://hi.vidhyamitra.com/city/jamnagar/2181-04-15","x-default":"https://vidhyamitra.com/city/jamnagar/2181-04-15"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T19:17:43.321Z","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":"2026-06-01T19:17:43.321Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T19:17:43.321Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}