{"id":"vidhyamitra:city-day:perth:2174-03-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2174-03-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2174-03-31","date_display":"March 31, 2174 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":2174,"month":3,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2515186.770833,"kali_year":5275,"ahargana":1926721.2708,"sun":{"sidereal_longitude":343.9659,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":319.0665,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":335.1006,"elapsed_within_tithi_degrees":11.1006},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4,"moon_longitude":319.0665,"elapsed_within_degrees":12.3998},"yoga":{"number":23,"name":"Śubha","sum_longitude":303.0323},"karana":{"half_tithi_index":55,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"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":2174,"month":3,"day":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2515186.770833,"ahargana":1926721.2708,"kali_year":5275,"ayanamsa_lahiri":26.2871,"grahas":{"sun":{"sidereal_longitude":344.198527,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":317.59462699999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false,"latitude":-1.0852},"mars":{"sidereal_longitude":223.58162700000003,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":349.918627,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":261.47692700000005,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":301.33372699999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":348.081627,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":333.035,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":153.035,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","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":2174,"month":3,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2515186.770833,"kali_year":5275,"ahargana":1926721.2708,"sun":{"sidereal_longitude":343.9659,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":319.0665,"rashi":11,"rashi_name":"Kumbha"},"tithi":{"number":28,"name":"Trayodaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Trayodaśī","elongation_degrees":335.1006,"elapsed_within_tithi_degrees":11.1006},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4,"moon_longitude":319.0665,"elapsed_within_degrees":12.3998},"yoga":{"number":23,"name":"Śubha","sum_longitude":303.0323},"karana":{"half_tithi_index":55,"name":"Vaṇija"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-1.085,"elongation":24.899},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-1.085,"opposition_distance":155.101}},"eclipse_window_40days":[{"offset_days":2,"type":"solar","occurs":true,"moon_latitude":1.168,"elongation":2.051}]},"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":"06:28","sunsetLocal":"18:15","solarNoonLocal":"12:21","dayLengthHours":11.785434588035763,"dayLengthDisplay":"11 Hours 47 Mins 08 Secs","nightLengthDisplay":"12 Hours 12 Mins 52 Secs","moonriseLocal":"04:16","moonsetLocal":"16:53","rahuKala":{"name":"Rāhu Kāla","start":"13:50","end":"15:18","startHours":13.82684101377258,"endHours":15.30002033727705,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:28","end":"07:56","startHours":6.460944396250228,"endHours":7.934123719754698,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:24","end":"10:53","startHours":9.40730304325917,"endHours":10.880482366763639,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:13","end":"09:36","startHours":9.210879133458572,"endHours":9.603726953059764,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:57","end":"07:16","startHours":6.952004170751718,"endHours":7.266282426432672,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:58","end":"12:45","startHours":11.960813870666916,"endHours":12.7465095098693,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:53","end":"05:41","startHours":4.889553117845459,"endHours":5.675248757047844,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:29","end":"06:28","startHours":5.478824847247248,"endHours":6.460944396250228,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:19","end":"15:06","startHours":14.31790078827407,"endHours":15.103596427476454,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:03","end":"18:27","startHours":18.04637898428599,"endHours":18.44637898428599,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:15","end":"18:44","startHours":18.24637898428599,"endHours":18.73743875878748,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:00","end":"19:45","startHours":17.99637898428599,"endHours":19.74637898428599,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:58","end":"00:45","startHours":23.960813870666914,"endHours":24.746509509869302,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:28","end":"07:56","startHours":6.460944396250228,"endHours":7.934123719754698,"quality":"auspicious"},{"name":"Roga","start":"07:56","end":"09:24","startHours":7.934123719754698,"endHours":9.40730304325917,"quality":"inauspicious"},{"name":"Udveg","start":"09:24","end":"10:53","startHours":9.40730304325917,"endHours":10.880482366763639,"quality":"inauspicious"},{"name":"Chala","start":"10:53","end":"12:21","startHours":10.880482366763639,"endHours":12.353661690268108,"quality":"neutral"},{"name":"Labha","start":"12:21","end":"13:50","startHours":12.353661690268108,"endHours":13.82684101377258,"quality":"auspicious"},{"name":"Amṛta","start":"13:50","end":"15:18","startHours":13.82684101377258,"endHours":15.30002033727705,"quality":"auspicious"},{"name":"Kāla","start":"15:18","end":"16:46","startHours":15.30002033727705,"endHours":16.77319966078152,"quality":"inauspicious"},{"name":"Śubha","start":"16:46","end":"18:15","startHours":16.77319966078152,"endHours":18.24637898428599,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:15","end":"19:46","startHours":18.24637898428599,"endHours":19.77319966078152,"quality":"auspicious"},{"name":"Kāla","start":"19:46","end":"21:18","startHours":19.77319966078152,"endHours":21.300020337277047,"quality":"inauspicious"},{"name":"Śubha","start":"21:18","end":"22:50","startHours":21.300020337277047,"endHours":22.82684101377258,"quality":"auspicious"},{"name":"Roga","start":"22:50","end":"00:21","startHours":22.82684101377258,"endHours":24.35366169026811,"quality":"inauspicious"},{"name":"Udveg","start":"00:21","end":"01:53","startHours":24.35366169026811,"endHours":25.880482366763637,"quality":"inauspicious"},{"name":"Chala","start":"01:53","end":"03:24","startHours":25.880482366763637,"endHours":27.40730304325917,"quality":"neutral"},{"name":"Labha","start":"03:24","end":"04:56","startHours":27.40730304325917,"endHours":28.934123719754698,"quality":"auspicious"},{"name":"Amṛta","start":"04:56","end":"06:28","startHours":28.934123719754698,"endHours":30.460944396250227,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:28","end":"07:28","startHours":6.460944396250228,"endHours":7.460944396250228,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:28","end":"08:28","startHours":7.460944396250228,"endHours":8.460944396250227,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:28","end":"09:28","startHours":8.460944396250227,"endHours":9.460944396250227,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:28","end":"10:28","startHours":9.460944396250227,"endHours":10.460944396250227,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:28","end":"11:28","startHours":10.460944396250227,"endHours":11.460944396250227,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:28","end":"12:28","startHours":11.460944396250227,"endHours":12.460944396250227,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:28","end":"13:28","startHours":12.460944396250227,"endHours":13.460944396250227,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:28","end":"14:28","startHours":13.460944396250227,"endHours":14.460944396250227,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:28","end":"15:28","startHours":14.460944396250227,"endHours":15.460944396250227,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:28","end":"16:28","startHours":15.460944396250227,"endHours":16.460944396250227,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:28","end":"17:28","startHours":16.460944396250227,"endHours":17.460944396250227,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:28","end":"18:28","startHours":17.460944396250227,"endHours":18.460944396250227,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:28","end":"19:28","startHours":18.460944396250227,"endHours":19.460944396250227,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:28","end":"20:28","startHours":19.460944396250227,"endHours":20.460944396250227,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:28","end":"21:28","startHours":20.460944396250227,"endHours":21.460944396250227,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:28","end":"22:28","startHours":21.460944396250227,"endHours":22.460944396250227,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:28","end":"23:28","startHours":22.460944396250227,"endHours":23.460944396250227,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:28","end":"00:28","startHours":23.460944396250227,"endHours":24.460944396250227,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:28","end":"01:28","startHours":24.460944396250227,"endHours":25.460944396250227,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:28","end":"02:28","startHours":25.460944396250227,"endHours":26.460944396250227,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:28","end":"03:28","startHours":26.460944396250227,"endHours":27.460944396250227,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:28","end":"04:28","startHours":27.460944396250227,"endHours":28.460944396250227,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:28","end":"05:28","startHours":28.460944396250227,"endHours":29.460944396250227,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:28","end":"06:28","startHours":29.460944396250227,"endHours":30.460944396250227,"planetary_lord":"Moon"}],"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":"South (Dakṣiṇa)","chandraVasa":"South","rahuVasa":"North-West","anandadiYoga":{"name":"Maitra","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":4.150863453020954,"eotMinutes":-4.661701416086492,"ayanamsa":26.2871}},"calendars":{"vikram_samvat":2231,"vikram_samvatsara":"Sarvajit","saka_samvat":2096,"saka_samvatsara":"Bhāva","bengali_samvat":1581,"malayalam_era":1350,"nanakshahi_year":705,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Phālguna","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 Kṛṣṇa Trayodaśī · Vikram 2231 Sarvajit · Śaka 2096 Bhāva"},"festivals":[{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"todays_walk":{"walk":{"id":"guru-walk","name":"Bṛhaspati Walk","name_sanskrit":"गुरु यात्रा","type":"graha","description":"Wisdom transmission + BG 4.34.","step_count":8,"url":"/walk/guru-walk"},"reason":"Guruvāra (Thursday) — 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 March 31, 2174 CE · Perth, Australia · Vidhyamitra","description":"March 31, 2174 CE for Perth, Australia: Kṛṣṇa Trayodaśī, sūryodaya 06:28, sūryāsta 18:15.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2174-03-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2174-03-31","sa":"https://sa.vidhyamitra.com/city/perth/2174-03-31","hi":"https://hi.vidhyamitra.com/city/perth/2174-03-31","x-default":"https://vidhyamitra.com/city/perth/2174-03-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T12:22:26.822Z","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":"2026-05-31T12:22:26.822Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T12:22:26.822Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}