{"id":"vidhyamitra:city-day:rishikesh:2031-04-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2031-04-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2031-04-12","date_display":"April 12, 2031 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":2031,"month":4,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462968.770833,"kali_year":5132,"ahargana":1874503.2708,"sun":{"sidereal_longitude":357.7283,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":232.9814,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":235.2531,"elapsed_within_tithi_degrees":7.2531},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2,"moon_longitude":232.9814,"elapsed_within_degrees":6.3147},"yoga":{"number":18,"name":"Varīyān","sum_longitude":230.7097},"karana":{"half_tithi_index":39,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2031,"month":4,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2462968.770833,"ahargana":1874503.2708,"kali_year":5132,"ayanamsa_lahiri":24.2899,"grahas":{"sun":{"sidereal_longitude":357.659338,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":4},"retrograde":false},"moon":{"sidereal_longitude":234.47313799999995,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false,"latitude":1.0255},"mars":{"sidereal_longitude":205.645038,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":345.037238,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":true},"jupiter":{"sidereal_longitude":244.698938,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"venus":{"sidereal_longitude":36.792438000000004,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":41.607237999999995,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":219.796,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":39.796,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","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":2031,"month":4,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462968.770833,"kali_year":5132,"ahargana":1874503.2708,"sun":{"sidereal_longitude":357.7283,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":232.9814,"rashi":8,"rashi_name":"Vṛścika"},"tithi":{"number":20,"name":"Pañcamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pañcamī","elongation_degrees":235.2531,"elapsed_within_tithi_degrees":7.2531},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2,"moon_longitude":232.9814,"elapsed_within_degrees":6.3147},"yoga":{"number":18,"name":"Varīyān","sum_longitude":230.7097},"karana":{"half_tithi_index":39,"name":"Taitila"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.025,"elongation":124.747},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.025,"opposition_distance":55.253}},"eclipse_window_40days":[]},"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"rishikesh","name":"Ṛṣikeśa","lat":30.0869,"lon":78.2676,"tz_offset_hours":5.5,"state":"Uttarakhand","country":"IN","tier":"tirtha"},"sunriseLocal":"05:54","sunsetLocal":"18:42","solarNoonLocal":"12:18","dayLengthHours":12.796648155263469,"dayLengthDisplay":"12 Hours 47 Mins 48 Secs","nightLengthDisplay":"11 Hours 12 Mins 12 Secs","moonriseLocal":"22:59","moonsetLocal":"09:11","rahuKala":{"name":"Rāhu Kāla","start":"09:06","end":"10:42","startHours":9.100389647176488,"endHours":10.69997066658442,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:54","end":"15:30","startHours":13.899132705400287,"endHours":15.498713724808223,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:54","end":"07:30","startHours":5.90122760836062,"endHours":7.500808627768554,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:53","end":"09:19","startHours":8.887112177922097,"endHours":9.313667116430878,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:26","end":"06:47","startHours":6.434421281496598,"endHours":6.7756652323036235,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:52","end":"12:44","startHours":11.872996747483572,"endHours":12.726106624501138,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:12","end":"05:03","startHours":4.195007854325491,"endHours":5.048117731343056,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:50","end":"05:54","startHours":4.834840262088664,"endHours":5.90122760836062,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:26","end":"15:17","startHours":14.432326378536267,"endHours":15.285436255553831,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:30","end":"18:54","startHours":18.49787576362409,"endHours":18.89787576362409,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:42","end":"19:14","startHours":18.69787576362409,"endHours":19.231069436760066,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:27","end":"20:12","startHours":18.44787576362409,"endHours":20.19787576362409,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:52","end":"00:44","startHours":23.872996747483572,"endHours":24.72610662450114,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:54","end":"07:30","startHours":5.90122760836062,"endHours":7.500808627768554,"quality":"inauspicious"},{"name":"Śubha","start":"07:30","end":"09:06","startHours":7.500808627768554,"endHours":9.100389647176488,"quality":"auspicious"},{"name":"Roga","start":"09:06","end":"10:42","startHours":9.100389647176488,"endHours":10.69997066658442,"quality":"inauspicious"},{"name":"Udveg","start":"10:42","end":"12:18","startHours":10.69997066658442,"endHours":12.299551685992355,"quality":"inauspicious"},{"name":"Chala","start":"12:18","end":"13:54","startHours":12.299551685992355,"endHours":13.899132705400287,"quality":"neutral"},{"name":"Labha","start":"13:54","end":"15:30","startHours":13.899132705400287,"endHours":15.498713724808223,"quality":"auspicious"},{"name":"Amṛta","start":"15:30","end":"17:06","startHours":15.498713724808223,"endHours":17.098294744216155,"quality":"auspicious"},{"name":"Kāla","start":"17:06","end":"18:42","startHours":17.098294744216155,"endHours":18.69787576362409,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:42","end":"20:06","startHours":18.69787576362409,"endHours":20.098294744216155,"quality":"auspicious"},{"name":"Amṛta","start":"20:06","end":"21:30","startHours":20.098294744216155,"endHours":21.498713724808223,"quality":"auspicious"},{"name":"Kāla","start":"21:30","end":"22:54","startHours":21.498713724808223,"endHours":22.89913270540029,"quality":"inauspicious"},{"name":"Śubha","start":"22:54","end":"00:18","startHours":22.89913270540029,"endHours":24.299551685992355,"quality":"auspicious"},{"name":"Roga","start":"00:18","end":"01:42","startHours":24.299551685992355,"endHours":25.69997066658442,"quality":"inauspicious"},{"name":"Udveg","start":"01:42","end":"03:06","startHours":25.69997066658442,"endHours":27.10038964717649,"quality":"inauspicious"},{"name":"Chala","start":"03:06","end":"04:30","startHours":27.10038964717649,"endHours":28.500808627768556,"quality":"neutral"},{"name":"Labha","start":"04:30","end":"05:54","startHours":28.500808627768556,"endHours":29.90122760836062,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:54","end":"06:54","startHours":5.90122760836062,"endHours":6.90122760836062,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:54","end":"07:54","startHours":6.90122760836062,"endHours":7.90122760836062,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:54","end":"08:54","startHours":7.90122760836062,"endHours":8.901227608360621,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:54","end":"09:54","startHours":8.901227608360621,"endHours":9.901227608360621,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:54","end":"10:54","startHours":9.901227608360621,"endHours":10.901227608360621,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:54","end":"11:54","startHours":10.901227608360621,"endHours":11.901227608360621,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:54","end":"12:54","startHours":11.901227608360621,"endHours":12.901227608360621,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:54","end":"13:54","startHours":12.901227608360621,"endHours":13.901227608360621,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:54","end":"14:54","startHours":13.901227608360621,"endHours":14.901227608360621,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:54","end":"15:54","startHours":14.901227608360621,"endHours":15.901227608360621,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:54","end":"16:54","startHours":15.901227608360621,"endHours":16.90122760836062,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:54","end":"17:54","startHours":16.90122760836062,"endHours":17.90122760836062,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:54","end":"18:54","startHours":17.90122760836062,"endHours":18.90122760836062,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:54","end":"19:54","startHours":18.90122760836062,"endHours":19.90122760836062,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:54","end":"20:54","startHours":19.90122760836062,"endHours":20.90122760836062,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:54","end":"21:54","startHours":20.90122760836062,"endHours":21.90122760836062,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:54","end":"22:54","startHours":21.90122760836062,"endHours":22.90122760836062,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:54","end":"23:54","startHours":22.90122760836062,"endHours":23.90122760836062,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:54","end":"00:54","startHours":23.90122760836062,"endHours":24.90122760836062,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:54","end":"01:54","startHours":24.90122760836062,"endHours":25.90122760836062,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:54","end":"02:54","startHours":25.90122760836062,"endHours":26.90122760836062,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:54","end":"03:54","startHours":26.90122760836062,"endHours":27.90122760836062,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:54","end":"04:54","startHours":27.90122760836062,"endHours":28.90122760836062,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:54","end":"05:54","startHours":28.90122760836062,"endHours":29.90122760836062,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Vṛścika","Makara"],"unfavorable_rashis":["Mithuna","Karka","Tulā","Dhanu","Kumbha","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"North-East","rahuVasa":"East","anandadiYoga":{"name":"Padma","quality":"Auspicious"},"drikRitu":"Vasanta (Spring) (Drik)","vedicRitu":"Śiśira (Winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":8.54965190389399,"eotMinutes":-1.043501159541278,"ayanamsa":24.2899}},"calendars":{"vikram_samvat":2088,"vikram_samvatsara":"Raktākṣī","saka_samvat":1953,"saka_samvatsara":"Virodhakṛt","bengali_samvat":1438,"malayalam_era":1207,"nanakshahi_year":562,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Kṛṣṇa Pakṣa","solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Kṛṣṇa Pañcamī · Vikram 2088 Raktākṣī · Śaka 1953 Virodhakṛt"},"festivals":[{"id":"mina-sankranti","name":"Mīna Saṅkrānti","name_sanskrit":"मीन सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Pisces; Mīna-māsa begins.","vrata":false,"detection":{"sun_rashi":"Mīna"},"precedence":5}],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-20","event":"Karṇa-Vadha (Mahābhārata Day 17)","chart_id":"karna","shared_marker":"same Jyeṣṭhā","url":"/day/-3137-10-20","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"rishikesh"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga April 12, 2031 CE · Ṛṣikeśa · Vidhyamitra","description":"April 12, 2031 CE for Ṛṣikeśa: Kṛṣṇa Pañcamī, sūryodaya 05:54, sūryāsta 18:42.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2031-04-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2031-04-12","sa":"https://sa.vidhyamitra.com/city/rishikesh/2031-04-12","hi":"https://hi.vidhyamitra.com/city/rishikesh/2031-04-12","x-default":"https://vidhyamitra.com/city/rishikesh/2031-04-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T08:25:08.516Z","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":"2026-05-15T08:25:08.516Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T08:25:08.516Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}