{"id":"vidhyamitra:city-day:perth:2116-01-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2116-01-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2116-01-18","date_display":"January 18, 2116 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":2116,"month":1,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2493929.770833,"kali_year":5217,"ahargana":1905464.2708,"sun":{"sidereal_longitude":271.226,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":308.1159,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":36.8899,"elapsed_within_tithi_degrees":0.8899},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1,"moon_longitude":308.1159,"elapsed_within_degrees":1.4492},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":219.3419},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"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":2116,"month":1,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2493929.770833,"ahargana":1905464.2708,"kali_year":5217,"ayanamsa_lahiri":25.4741,"grahas":{"sun":{"sidereal_longitude":271.606,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2},"retrograde":false},"moon":{"sidereal_longitude":305.2441,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false,"latitude":-4.2599},"mars":{"sidereal_longitude":232.91070000000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":246.5401999999999,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":283.1423,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"venus":{"sidereal_longitude":313.0041,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":352.2277,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":19.3332,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":199.3332,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","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":2116,"month":1,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2493929.770833,"kali_year":5217,"ahargana":1905464.2708,"sun":{"sidereal_longitude":271.226,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":308.1159,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":4,"name":"Caturthī","paksha":"Śukla","full_name":"Śukla Caturthī","elongation_degrees":36.8899,"elapsed_within_tithi_degrees":0.8899},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1,"moon_longitude":308.1159,"elapsed_within_degrees":1.4492},"yoga":{"number":17,"name":"Vyatīpāta","sum_longitude":219.3419},"karana":{"half_tithi_index":6,"name":"Vaṇija"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.26,"elongation":36.89},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.26,"opposition_distance":143.11}},"eclipse_window_40days":[]},"city":{"slug":"perth","name":"Perth, Australia","lat":-31.9505,"lon":115.8605,"tz_offset_hours":8,"country":"AU","tier":"diaspora"},"tier2":{"city":{"slug":"perth","name":"Perth, Australia","lat":-31.9505,"lon":115.8605,"tz_offset_hours":8,"country":"AU","tier":"diaspora"},"sunriseLocal":"05:28","sunsetLocal":"19:26","solarNoonLocal":"12:27","dayLengthHours":13.96574064138634,"dayLengthDisplay":"13 Hours 57 Mins 57 Secs","nightLengthDisplay":"10 Hours 02 Mins 03 Secs","moonriseLocal":"08:10","moonsetLocal":"21:13","rahuKala":{"name":"Rāhu Kāla","start":"08:57","end":"10:42","startHours":8.957018666014909,"endHours":10.702736246188202,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:12","end":"15:56","startHours":14.194171406534785,"endHours":15.939888986708079,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"05:28","end":"07:13","startHours":5.465583505668324,"endHours":7.211301085841616,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:43","end":"09:11","startHours":8.724256321991803,"endHours":9.189781010038015,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:03","end":"06:25","startHours":6.047489365726088,"endHours":6.4199091161630575,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:59","end":"12:55","startHours":11.982929138315283,"endHours":12.913978514407704,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:36","end":"04:32","startHours":3.603484753483478,"endHours":4.534534129575901,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:18","end":"05:28","startHours":4.301771785552796,"endHours":5.465583505668324,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:47","end":"15:42","startHours":14.77607726659255,"endHours":15.707126642684972,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:14","end":"19:38","startHours":19.231324147054664,"endHours":19.631324147054663,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:26","end":"20:01","startHours":19.431324147054664,"endHours":20.013230007112426,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:11","end":"20:56","startHours":19.181324147054664,"endHours":20.931324147054664,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:59","end":"00:55","startHours":23.98292913831528,"endHours":24.913978514407706,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"05:28","end":"07:13","startHours":5.465583505668324,"endHours":7.211301085841616,"quality":"inauspicious"},{"name":"Śubha","start":"07:13","end":"08:57","startHours":7.211301085841616,"endHours":8.957018666014909,"quality":"auspicious"},{"name":"Roga","start":"08:57","end":"10:42","startHours":8.957018666014909,"endHours":10.702736246188202,"quality":"inauspicious"},{"name":"Udveg","start":"10:42","end":"12:27","startHours":10.702736246188202,"endHours":12.448453826361494,"quality":"inauspicious"},{"name":"Chala","start":"12:27","end":"14:12","startHours":12.448453826361494,"endHours":14.194171406534785,"quality":"neutral"},{"name":"Labha","start":"14:12","end":"15:56","startHours":14.194171406534785,"endHours":15.939888986708079,"quality":"auspicious"},{"name":"Amṛta","start":"15:56","end":"17:41","startHours":15.939888986708079,"endHours":17.685606566881372,"quality":"auspicious"},{"name":"Kāla","start":"17:41","end":"19:26","startHours":17.685606566881372,"endHours":19.431324147054664,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"19:26","end":"20:41","startHours":19.431324147054664,"endHours":20.685606566881372,"quality":"auspicious"},{"name":"Amṛta","start":"20:41","end":"21:56","startHours":20.685606566881372,"endHours":21.939888986708077,"quality":"auspicious"},{"name":"Kāla","start":"21:56","end":"23:12","startHours":21.939888986708077,"endHours":23.194171406534785,"quality":"inauspicious"},{"name":"Śubha","start":"23:12","end":"00:27","startHours":23.194171406534785,"endHours":24.448453826361494,"quality":"auspicious"},{"name":"Roga","start":"00:27","end":"01:42","startHours":24.448453826361494,"endHours":25.702736246188202,"quality":"inauspicious"},{"name":"Udveg","start":"01:42","end":"02:57","startHours":25.702736246188202,"endHours":26.95701866601491,"quality":"inauspicious"},{"name":"Chala","start":"02:57","end":"04:13","startHours":26.95701866601491,"endHours":28.211301085841615,"quality":"neutral"},{"name":"Labha","start":"04:13","end":"05:28","startHours":28.211301085841615,"endHours":29.465583505668324,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"05:28","end":"06:28","startHours":5.465583505668324,"endHours":6.465583505668324,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"06:28","end":"07:28","startHours":6.465583505668324,"endHours":7.465583505668324,"planetary_lord":"Moon"},{"name":"Hora 3","start":"07:28","end":"08:28","startHours":7.465583505668324,"endHours":8.465583505668324,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"08:28","end":"09:28","startHours":8.465583505668324,"endHours":9.465583505668324,"planetary_lord":"Venus"},{"name":"Hora 5","start":"09:28","end":"10:28","startHours":9.465583505668324,"endHours":10.465583505668324,"planetary_lord":"Sun"},{"name":"Hora 6","start":"10:28","end":"11:28","startHours":10.465583505668324,"endHours":11.465583505668324,"planetary_lord":"Mars"},{"name":"Hora 7","start":"11:28","end":"12:28","startHours":11.465583505668324,"endHours":12.465583505668324,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"12:28","end":"13:28","startHours":12.465583505668324,"endHours":13.465583505668324,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"13:28","end":"14:28","startHours":13.465583505668324,"endHours":14.465583505668324,"planetary_lord":"Moon"},{"name":"Hora 10","start":"14:28","end":"15:28","startHours":14.465583505668324,"endHours":15.465583505668324,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"15:28","end":"16:28","startHours":15.465583505668324,"endHours":16.465583505668324,"planetary_lord":"Venus"},{"name":"Hora 12","start":"16:28","end":"17:28","startHours":16.465583505668324,"endHours":17.465583505668324,"planetary_lord":"Sun"},{"name":"Hora 13","start":"17:28","end":"18:28","startHours":17.465583505668324,"endHours":18.465583505668324,"planetary_lord":"Mars"},{"name":"Hora 14","start":"18:28","end":"19:28","startHours":18.465583505668324,"endHours":19.465583505668324,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"19:28","end":"20:28","startHours":19.465583505668324,"endHours":20.465583505668324,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"20:28","end":"21:28","startHours":20.465583505668324,"endHours":21.465583505668324,"planetary_lord":"Moon"},{"name":"Hora 17","start":"21:28","end":"22:28","startHours":21.465583505668324,"endHours":22.465583505668324,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"22:28","end":"23:28","startHours":22.465583505668324,"endHours":23.465583505668324,"planetary_lord":"Venus"},{"name":"Hora 19","start":"23:28","end":"00:28","startHours":23.465583505668324,"endHours":24.465583505668324,"planetary_lord":"Sun"},{"name":"Hora 20","start":"00:28","end":"01:28","startHours":24.465583505668324,"endHours":25.465583505668324,"planetary_lord":"Mars"},{"name":"Hora 21","start":"01:28","end":"02:28","startHours":25.465583505668324,"endHours":26.465583505668324,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"02:28","end":"03:28","startHours":26.465583505668324,"endHours":27.465583505668324,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"03:28","end":"04:28","startHours":27.465583505668324,"endHours":28.465583505668324,"planetary_lord":"Moon"},{"name":"Hora 24","start":"04:28","end":"05:28","startHours":28.465583505668324,"endHours":29.465583505668324,"planetary_lord":"Mercury"}],"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","Karka","Siṃha","Vṛścika","Dhanu","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Makara","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"South","rahuVasa":"East","anandadiYoga":{"name":"Śubha","quality":"Auspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-20.740099062972334,"eotMinutes":-10.349229581689698,"ayanamsa":25.4741}},"calendars":{"vikram_samvat":2173,"vikram_samvatsara":"Virodhi","saka_samvat":2038,"saka_samvatsara":"Dhātṛ","bengali_samvat":1523,"malayalam_era":1292,"nanakshahi_year":647,"lunar_month":"Pauṣa","lunar_month_paksha_full":"Pauṣa Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Pauṣa","lunar_month_amanta":"Pauṣa","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Makara (Tai)","ritu":"Hemanta (Pre-winter)","display_summary":"Pauṣa Śukla Caturthī · Vikram 2173 Virodhi · Śaka 2038 Dhātṛ"},"festivals":[{"id":"vinayaka-chaturthi","name":"Vināyaka Caturthī (monthly)","name_sanskrit":"विनायक चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Śukla-pakṣa Caturthī; auspicious for new ventures.","vrata":true,"detection":{"tithi_number":4,"tithi_paksha":"Śukla"},"precedence":6}],"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":[]},"validity":{"eternal":false,"location_specific":"perth"},"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, 2116 CE · Perth, Australia · Vidhyamitra","description":"January 18, 2116 CE for Perth, Australia: Śukla Caturthī, sūryodaya 05:28, sūryāsta 19:26.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2116-01-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2116-01-18","sa":"https://sa.vidhyamitra.com/city/perth/2116-01-18","hi":"https://hi.vidhyamitra.com/city/perth/2116-01-18","x-default":"https://vidhyamitra.com/city/perth/2116-01-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-30T22:52:13.723Z","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":"2026-05-30T22:52:13.723Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-30T22:52:13.723Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}