{"id":"vidhyamitra:city-day:rishikesh:2030-01-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/rishikesh/2030-01-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2030-01-18","date_display":"January 18, 2030 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":2030,"month":1,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462519.770833,"kali_year":5131,"ahargana":1874054.2708,"sun":{"sidereal_longitude":273.5388,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":73.636,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":160.0972,"elapsed_within_tithi_degrees":4.0972},"nakshatra":{"number":6,"name":"Ārdrā","pada":3,"moon_longitude":73.636,"elapsed_within_degrees":6.9694},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":347.1749},"karana":{"half_tithi_index":26,"name":"Gara"},"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":2030,"month":1,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2462519.770833,"ahargana":1874054.2708,"kali_year":5131,"ayanamsa_lahiri":24.2727,"grahas":{"sun":{"sidereal_longitude":273.698893,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":74.665393,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":3},"retrograde":false,"latitude":-0.7845},"mars":{"sidereal_longitude":303.43009299999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":249.41289300000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":209.13259300000004,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":16,"name":"Viśākhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":255.38809300000003,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":23.733392999999978,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":243.5862,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":63.5862,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","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":2030,"month":1,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2462519.770833,"kali_year":5131,"ahargana":1874054.2708,"sun":{"sidereal_longitude":273.5388,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":73.636,"rashi":3,"rashi_name":"Mithuna"},"tithi":{"number":14,"name":"Caturdaśī","paksha":"Śukla","full_name":"Śukla Caturdaśī","elongation_degrees":160.0972,"elapsed_within_tithi_degrees":4.0972},"nakshatra":{"number":6,"name":"Ārdrā","pada":3,"moon_longitude":73.636,"elapsed_within_degrees":6.9694},"yoga":{"number":27,"name":"Vaidhṛti","sum_longitude":347.1749},"karana":{"half_tithi_index":26,"name":"Gara"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-0.784,"elongation":160.097},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-0.784,"opposition_distance":19.903}},"eclipse_window_40days":[{"offset_days":-14,"type":"solar","occurs":true,"moon_latitude":1.192,"elongation":0.543}]},"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":"07:13","sunsetLocal":"17:41","solarNoonLocal":"12:27","dayLengthHours":10.466237546367374,"dayLengthDisplay":"10 Hours 27 Mins 58 Secs","nightLengthDisplay":"13 Hours 32 Mins 02 Secs","moonriseLocal":"16:11","moonsetLocal":"06:12","rahuKala":{"name":"Rāhu Kāla","start":"11:09","end":"12:27","startHours":11.146367466398907,"endHours":12.45464715969483,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"15:04","end":"16:23","startHours":15.071206546286673,"endHours":16.379486239582594,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"08:32","end":"09:50","startHours":8.529808079807065,"endHours":9.838087773102986,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:40","end":"10:01","startHours":9.66365048066353,"endHours":10.012525065542443,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:39","end":"07:56","startHours":7.657621617609783,"endHours":7.936721285512912,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:06","end":"12:48","startHours":12.105772574815918,"endHours":12.803521744573741,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:50","end":"06:31","startHours":5.826030046995492,"endHours":6.523779216753318,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:21","end":"07:13","startHours":6.349341924313861,"endHours":7.221528386511142,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:12","end":"14:54","startHours":14.199020084089392,"endHours":14.896769253847218,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:29","end":"17:53","startHours":17.487765932878517,"endHours":17.887765932878516,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:41","end":"18:07","startHours":17.687765932878516,"endHours":18.12385916397716,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:26","end":"19:11","startHours":17.437765932878516,"endHours":19.187765932878516,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:06","end":"00:48","startHours":24.105772574815916,"endHours":24.803521744573743,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"07:13","end":"08:32","startHours":7.221528386511142,"endHours":8.529808079807065,"quality":"neutral"},{"name":"Labha","start":"08:32","end":"09:50","startHours":8.529808079807065,"endHours":9.838087773102986,"quality":"auspicious"},{"name":"Amṛta","start":"09:50","end":"11:09","startHours":9.838087773102986,"endHours":11.146367466398907,"quality":"auspicious"},{"name":"Kāla","start":"11:09","end":"12:27","startHours":11.146367466398907,"endHours":12.45464715969483,"quality":"inauspicious"},{"name":"Śubha","start":"12:27","end":"13:46","startHours":12.45464715969483,"endHours":13.762926852990752,"quality":"auspicious"},{"name":"Roga","start":"13:46","end":"15:04","startHours":13.762926852990752,"endHours":15.071206546286673,"quality":"inauspicious"},{"name":"Udveg","start":"15:04","end":"16:23","startHours":15.071206546286673,"endHours":16.379486239582594,"quality":"inauspicious"},{"name":"Chala","start":"16:23","end":"17:41","startHours":16.379486239582594,"endHours":17.687765932878516,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:41","end":"19:23","startHours":17.687765932878516,"endHours":19.379486239582594,"quality":"inauspicious"},{"name":"Udveg","start":"19:23","end":"21:04","startHours":19.379486239582594,"endHours":21.071206546286675,"quality":"inauspicious"},{"name":"Chala","start":"21:04","end":"22:46","startHours":21.071206546286675,"endHours":22.762926852990752,"quality":"neutral"},{"name":"Labha","start":"22:46","end":"00:27","startHours":22.762926852990752,"endHours":24.45464715969483,"quality":"auspicious"},{"name":"Amṛta","start":"00:27","end":"02:09","startHours":24.45464715969483,"endHours":26.146367466398907,"quality":"auspicious"},{"name":"Kāla","start":"02:09","end":"03:50","startHours":26.146367466398907,"endHours":27.838087773102984,"quality":"inauspicious"},{"name":"Śubha","start":"03:50","end":"05:32","startHours":27.838087773102984,"endHours":29.529808079807065,"quality":"auspicious"},{"name":"Roga","start":"05:32","end":"07:13","startHours":29.529808079807065,"endHours":31.221528386511142,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"07:13","end":"08:13","startHours":7.221528386511142,"endHours":8.221528386511142,"planetary_lord":"Venus"},{"name":"Hora 2","start":"08:13","end":"09:13","startHours":8.221528386511142,"endHours":9.221528386511142,"planetary_lord":"Sun"},{"name":"Hora 3","start":"09:13","end":"10:13","startHours":9.221528386511142,"endHours":10.221528386511142,"planetary_lord":"Mars"},{"name":"Hora 4","start":"10:13","end":"11:13","startHours":10.221528386511142,"endHours":11.221528386511142,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"11:13","end":"12:13","startHours":11.221528386511142,"endHours":12.221528386511142,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"12:13","end":"13:13","startHours":12.221528386511142,"endHours":13.221528386511142,"planetary_lord":"Moon"},{"name":"Hora 7","start":"13:13","end":"14:13","startHours":13.221528386511142,"endHours":14.221528386511142,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"14:13","end":"15:13","startHours":14.221528386511142,"endHours":15.221528386511142,"planetary_lord":"Venus"},{"name":"Hora 9","start":"15:13","end":"16:13","startHours":15.221528386511142,"endHours":16.221528386511142,"planetary_lord":"Sun"},{"name":"Hora 10","start":"16:13","end":"17:13","startHours":16.221528386511142,"endHours":17.221528386511142,"planetary_lord":"Mars"},{"name":"Hora 11","start":"17:13","end":"18:13","startHours":17.221528386511142,"endHours":18.221528386511142,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"18:13","end":"19:13","startHours":18.221528386511142,"endHours":19.221528386511142,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"19:13","end":"20:13","startHours":19.221528386511142,"endHours":20.221528386511142,"planetary_lord":"Moon"},{"name":"Hora 14","start":"20:13","end":"21:13","startHours":20.221528386511142,"endHours":21.221528386511142,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"21:13","end":"22:13","startHours":21.221528386511142,"endHours":22.221528386511142,"planetary_lord":"Venus"},{"name":"Hora 16","start":"22:13","end":"23:13","startHours":22.221528386511142,"endHours":23.221528386511142,"planetary_lord":"Sun"},{"name":"Hora 17","start":"23:13","end":"00:13","startHours":23.221528386511142,"endHours":24.221528386511142,"planetary_lord":"Mars"},{"name":"Hora 18","start":"00:13","end":"01:13","startHours":24.221528386511142,"endHours":25.221528386511142,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"01:13","end":"02:13","startHours":25.221528386511142,"endHours":26.221528386511142,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"02:13","end":"03:13","startHours":26.221528386511142,"endHours":27.221528386511142,"planetary_lord":"Moon"},{"name":"Hora 21","start":"03:13","end":"04:13","startHours":27.221528386511142,"endHours":28.221528386511142,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"04:13","end":"05:13","startHours":28.221528386511142,"endHours":29.221528386511142,"planetary_lord":"Venus"},{"name":"Hora 23","start":"05:13","end":"06:13","startHours":29.221528386511142,"endHours":30.221528386511142,"planetary_lord":"Sun"},{"name":"Hora 24","start":"06:13","end":"07:13","startHours":30.221528386511142,"endHours":31.221528386511142,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Punarvasu","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Uttara Phalgunī","Hasta","Citrā","Svātī","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Meṣa","Mithuna","Siṃha","Vṛścika","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Karka","Kanyā","Tulā","Makara","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South","rahuVasa":"South-East","anandadiYoga":{"name":"Cara","quality":"Auspicious"},"drikRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-20.564980200347094,"eotMinutes":-10.349229581689698,"ayanamsa":24.2727}},"calendars":{"vikram_samvat":2087,"vikram_samvatsara":"Rudhirodgāri","saka_samvat":1952,"saka_samvatsara":"Sādhāraṇa","bengali_samvat":1437,"malayalam_era":1206,"nanakshahi_year":561,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","solar_month":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Caturdaśī · Vikram 2087 Rudhirodgāri · Śaka 1952 Sādhāraṇa"},"festivals":[{"id":"makara-sankranti","name":"Makara Saṅkrānti (Uttarāyaṇa)","name_sanskrit":"मकर सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Capricorn; Uttarāyaṇa (north-going) begins. Bhīṣma's chosen mahaprasthāna time.","vrata":true,"detection":{"sun_rashi":"Makara"},"precedence":1,"sources":["Mahābhārata Bhīṣma-Stuti","Sūrya-Siddhānta"]},{"id":"pongal","name":"Pongal / Thai Pongal","name_sanskrit":"पोङ्गल","tradition":"Regional","associated_deity":"Sūrya Bhagavān","significance":"Tamil 4-day harvest festival; coincides with Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi":"Makara"},"precedence":2}],"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":"rishikesh"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 18, 2030 CE · Ṛṣikeśa · Vidhyamitra","description":"January 18, 2030 CE for Ṛṣikeśa: Śukla Caturdaśī, sūryodaya 07:13, sūryāsta 17:41.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/rishikesh/2030-01-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/rishikesh/2030-01-18","sa":"https://sa.vidhyamitra.com/city/rishikesh/2030-01-18","hi":"https://hi.vidhyamitra.com/city/rishikesh/2030-01-18","x-default":"https://vidhyamitra.com/city/rishikesh/2030-01-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-15T05:40:59.787Z","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":"2026-05-15T05:40:59.787Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-15T05:40:59.787Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}