{"id":"vidhyamitra:city-day:perth:2168-10-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2168-10-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2168-10-31","date_display":"October 31, 2168 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":2168,"month":10,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2513209.770833,"kali_year":5270,"ahargana":1924744.2708,"sun":{"sidereal_longitude":190.8959,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":194.4362,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":3.5403,"elapsed_within_tithi_degrees":3.5403},"nakshatra":{"number":15,"name":"Svātī","pada":3,"moon_longitude":194.4362,"elapsed_within_degrees":7.7695},"yoga":{"number":2,"name":"Prīti","sum_longitude":25.332},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":2168,"month":10,"day":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2513209.770833,"ahargana":1924744.2708,"kali_year":5270,"ayanamsa_lahiri":26.2114,"grahas":{"sun":{"sidereal_longitude":191.999463,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":193.66626299999996,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":3},"retrograde":false,"latitude":4.0211},"mars":{"sidereal_longitude":215.86996299999998,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":199.84166299999993,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":15,"name":"Svātī","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":107.86776300000002,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":234.713663,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":278.548863,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":77.786,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":257.786,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","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":2168,"month":10,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2513209.770833,"kali_year":5270,"ahargana":1924744.2708,"sun":{"sidereal_longitude":190.8959,"rashi":7,"rashi_name":"Tulā"},"moon":{"sidereal_longitude":194.4362,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":3.5403,"elapsed_within_tithi_degrees":3.5403},"nakshatra":{"number":15,"name":"Svātī","pada":3,"moon_longitude":194.4362,"elapsed_within_degrees":7.7695},"yoga":{"number":2,"name":"Prīti","sum_longitude":25.332},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.021,"elongation":3.54},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.021,"opposition_distance":176.46}},"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":"05:20","sunsetLocal":"18:41","solarNoonLocal":"12:00","dayLengthHours":13.351407726313827,"dayLengthDisplay":"13 Hours 21 Mins 05 Secs","nightLengthDisplay":"10 Hours 38 Mins 55 Secs","moonriseLocal":"05:26","moonsetLocal":"18:48","rahuKala":{"name":"Rāhu Kāla","start":"07:00","end":"08:40","startHours":6.994975776790177,"endHours":8.663901742579405,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:20","end":"12:00","startHours":10.332827708368635,"endHours":12.001753674157863,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:40","end":"15:20","startHours":13.67067963994709,"endHours":15.33960560573632,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:26","end":"08:53","startHours":8.441378280474176,"endHours":8.886425204684636,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:53","end":"06:14","startHours":5.882358466264026,"endHours":6.238396005632394,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:33","end":"12:27","startHours":11.556706749947402,"endHours":12.446800598368323,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:33","end":"04:26","startHours":3.545862114159106,"endHours":4.435955962580028,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:13","end":"05:20","startHours":4.213432500474797,"endHours":5.326049811000949,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:14","end":"15:07","startHours":14.226988295210166,"endHours":15.117082143631087,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:29","end":"18:53","startHours":18.477457537314777,"endHours":18.877457537314775,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:41","end":"19:14","startHours":18.677457537314776,"endHours":19.233766192577853,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:26","end":"20:11","startHours":18.427457537314776,"endHours":20.177457537314776,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:33","end":"00:27","startHours":23.5567067499474,"endHours":24.446800598368323,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"05:20","end":"07:00","startHours":5.326049811000949,"endHours":6.994975776790177,"quality":"auspicious"},{"name":"Kāla","start":"07:00","end":"08:40","startHours":6.994975776790177,"endHours":8.663901742579405,"quality":"inauspicious"},{"name":"Śubha","start":"08:40","end":"10:20","startHours":8.663901742579405,"endHours":10.332827708368635,"quality":"auspicious"},{"name":"Roga","start":"10:20","end":"12:00","startHours":10.332827708368635,"endHours":12.001753674157863,"quality":"inauspicious"},{"name":"Udveg","start":"12:00","end":"13:40","startHours":12.001753674157863,"endHours":13.67067963994709,"quality":"inauspicious"},{"name":"Chala","start":"13:40","end":"15:20","startHours":13.67067963994709,"endHours":15.33960560573632,"quality":"neutral"},{"name":"Labha","start":"15:20","end":"17:01","startHours":15.33960560573632,"endHours":17.00853157152555,"quality":"auspicious"},{"name":"Amṛta","start":"17:01","end":"18:41","startHours":17.00853157152555,"endHours":18.677457537314776,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:41","end":"20:01","startHours":18.677457537314776,"endHours":20.00853157152555,"quality":"neutral"},{"name":"Labha","start":"20:01","end":"21:20","startHours":20.00853157152555,"endHours":21.33960560573632,"quality":"auspicious"},{"name":"Amṛta","start":"21:20","end":"22:40","startHours":21.33960560573632,"endHours":22.670679639947092,"quality":"auspicious"},{"name":"Kāla","start":"22:40","end":"00:00","startHours":22.670679639947092,"endHours":24.00175367415786,"quality":"inauspicious"},{"name":"Śubha","start":"00:00","end":"01:20","startHours":24.00175367415786,"endHours":25.332827708368633,"quality":"auspicious"},{"name":"Roga","start":"01:20","end":"02:40","startHours":25.332827708368633,"endHours":26.663901742579405,"quality":"inauspicious"},{"name":"Udveg","start":"02:40","end":"04:00","startHours":26.663901742579405,"endHours":27.994975776790177,"quality":"inauspicious"},{"name":"Chala","start":"04:00","end":"05:20","startHours":27.994975776790177,"endHours":29.32604981100095,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"05:20","end":"06:20","startHours":5.326049811000949,"endHours":6.326049811000949,"planetary_lord":"Moon"},{"name":"Hora 2","start":"06:20","end":"07:20","startHours":6.326049811000949,"endHours":7.326049811000949,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"07:20","end":"08:20","startHours":7.326049811000949,"endHours":8.32604981100095,"planetary_lord":"Venus"},{"name":"Hora 4","start":"08:20","end":"09:20","startHours":8.32604981100095,"endHours":9.32604981100095,"planetary_lord":"Sun"},{"name":"Hora 5","start":"09:20","end":"10:20","startHours":9.32604981100095,"endHours":10.32604981100095,"planetary_lord":"Mars"},{"name":"Hora 6","start":"10:20","end":"11:20","startHours":10.32604981100095,"endHours":11.32604981100095,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"11:20","end":"12:20","startHours":11.32604981100095,"endHours":12.32604981100095,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"12:20","end":"13:20","startHours":12.32604981100095,"endHours":13.32604981100095,"planetary_lord":"Moon"},{"name":"Hora 9","start":"13:20","end":"14:20","startHours":13.32604981100095,"endHours":14.32604981100095,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"14:20","end":"15:20","startHours":14.32604981100095,"endHours":15.32604981100095,"planetary_lord":"Venus"},{"name":"Hora 11","start":"15:20","end":"16:20","startHours":15.32604981100095,"endHours":16.32604981100095,"planetary_lord":"Sun"},{"name":"Hora 12","start":"16:20","end":"17:20","startHours":16.32604981100095,"endHours":17.32604981100095,"planetary_lord":"Mars"},{"name":"Hora 13","start":"17:20","end":"18:20","startHours":17.32604981100095,"endHours":18.32604981100095,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"18:20","end":"19:20","startHours":18.32604981100095,"endHours":19.32604981100095,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"19:20","end":"20:20","startHours":19.32604981100095,"endHours":20.32604981100095,"planetary_lord":"Moon"},{"name":"Hora 16","start":"20:20","end":"21:20","startHours":20.32604981100095,"endHours":21.32604981100095,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"21:20","end":"22:20","startHours":21.32604981100095,"endHours":22.32604981100095,"planetary_lord":"Venus"},{"name":"Hora 18","start":"22:20","end":"23:20","startHours":22.32604981100095,"endHours":23.32604981100095,"planetary_lord":"Sun"},{"name":"Hora 19","start":"23:20","end":"00:20","startHours":23.32604981100095,"endHours":24.32604981100095,"planetary_lord":"Mars"},{"name":"Hora 20","start":"00:20","end":"01:20","startHours":24.32604981100095,"endHours":25.32604981100095,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"01:20","end":"02:20","startHours":25.32604981100095,"endHours":26.32604981100095,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"02:20","end":"03:20","startHours":26.32604981100095,"endHours":27.32604981100095,"planetary_lord":"Moon"},{"name":"Hora 23","start":"03:20","end":"04:20","startHours":27.32604981100095,"endHours":28.32604981100095,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"04:20","end":"05:20","startHours":28.32604981100095,"endHours":29.32604981100095,"planetary_lord":"Venus"}],"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","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"North","rahuVasa":"North-East","anandadiYoga":{"name":"Siddhi","quality":"Auspicious"},"tropicalRitu":"Śarad (Autumn) (tropical)","vedicRitu":"Śarad (Autumn)","tropicalAyana":"Dakṣiṇāyana","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-14.242141173079133,"eotMinutes":16.45277955052819,"ayanamsa":26.2114}},"calendars":{"vikram_samvat":2225,"vikram_samvatsara":"Vṛṣa","saka_samvat":2090,"saka_samvatsara":"Vibhava","bengali_samvat":1575,"malayalam_era":1344,"nanakshahi_year":699,"lunar_month":"Kārtika","lunar_month_paksha_full":"Kārtika Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Kārtika","lunar_month_amanta":"Kārtika","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Tulā (Aippasi)","ritu":"Śarad (Autumn)","display_summary":"Kārtika Śukla Pratipada · Vikram 2225 Vṛṣa · Śaka 2090 Vibhava"},"festivals":[{"id":"govardhana-puja","name":"Govardhana Pūjā (Annakūṭa)","name_sanskrit":"गोवर्धन पूजा","tradition":"Vaishnava","associated_deity":"Krishna (Govardhana-dhārī)","significance":"Krishna lifted Govardhana to protect Vraja from Indra's wrath. Day 4 of Diwali.","vrata":true,"detection":{"tithi_number":1,"tithi_paksha":"Śukla","lunar_month":"Kārtika"},"precedence":2,"sources":["Bhāgavata 10.24-27"]}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — 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 October 31, 2168 CE · Perth, Australia · Vidhyamitra","description":"October 31, 2168 CE for Perth, Australia: Śukla Pratipada, sūryodaya 05:20, sūryāsta 18:41.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2168-10-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2168-10-31","sa":"https://sa.vidhyamitra.com/city/perth/2168-10-31","hi":"https://hi.vidhyamitra.com/city/perth/2168-10-31","x-default":"https://vidhyamitra.com/city/perth/2168-10-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T23:39:25.176Z","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":"2026-05-31T23:39:25.176Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T23:39:25.176Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}