{"id":"vidhyamitra:city-day:perth:1966-04-03:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1966-04-03","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1966-04-03","date_display":"April 3, 1966 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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1966,"month":4,"day":3,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2439218.770833,"kali_year":5067,"ahargana":1850753.2708,"sun":{"sidereal_longitude":349.7041,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":138.0611,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":148.357,"elapsed_within_tithi_degrees":4.357},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2,"moon_longitude":138.0611,"elapsed_within_degrees":4.7278},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":127.7652},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"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":1966,"month":4,"day":3,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2439218.770833,"ahargana":1850753.2708,"kali_year":5067,"ayanamsa_lahiri":23.3816,"grahas":{"sun":{"sidereal_longitude":349.462763,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":135.619663,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":1},"retrograde":false,"latitude":4.4332},"mars":{"sidereal_longitude":355.972363,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":329.99916299999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":61.838963000000035,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":303.57266300000003,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"saturn":{"sidereal_longitude":329.96116299999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":38.1853,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":218.1853,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":1966,"month":4,"day":3,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2439218.770833,"kali_year":5067,"ahargana":1850753.2708,"sun":{"sidereal_longitude":349.7041,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":138.0611,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":148.357,"elapsed_within_tithi_degrees":4.357},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":2,"moon_longitude":138.0611,"elapsed_within_degrees":4.7278},"yoga":{"number":10,"name":"Gaṇḍa","sum_longitude":127.7652},"karana":{"half_tithi_index":24,"name":"Kaulava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.433,"elongation":148.357},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.433,"opposition_distance":31.643}},"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":"06:29","sunsetLocal":"18:12","solarNoonLocal":"12:20","dayLengthHours":11.708417375437273,"dayLengthDisplay":"11 Hours 42 Mins 30 Secs","nightLengthDisplay":"12 Hours 17 Mins 30 Secs","moonriseLocal":"16:23","moonsetLocal":"03:47","rahuKala":{"name":"Rāhu Kāla","start":"16:44","end":"18:12","startHours":16.728537900763822,"endHours":18.19209007269348,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:20","end":"13:48","startHours":12.337881384974846,"endHours":13.801433556904504,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"15:16","end":"16:44","startHours":15.264985728834164,"endHours":16.728537900763822,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:13","end":"09:36","startHours":9.215636751524906,"endHours":9.605917330706149,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:58","end":"07:17","startHours":6.971523421232762,"endHours":7.283747884577756,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:57","end":"12:44","startHours":11.947600805793604,"endHours":12.728161964156088,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:55","end":"05:42","startHours":4.922550380531239,"endHours":5.703111538893724,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:30","end":"06:29","startHours":5.507971249303102,"endHours":6.483672697256209,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:17","end":"15:04","startHours":14.289284280881057,"endHours":15.069845439243542,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:00","end":"18:24","startHours":17.992090072693482,"endHours":18.39209007269348,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:12","end":"18:41","startHours":18.19209007269348,"endHours":18.679940796670035,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:57","end":"19:42","startHours":17.94209007269348,"endHours":19.69209007269348,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:57","end":"00:44","startHours":23.947600805793602,"endHours":24.72816196415609,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:29","end":"07:57","startHours":6.483672697256209,"endHours":7.947224869185868,"quality":"inauspicious"},{"name":"Chala","start":"07:57","end":"09:25","startHours":7.947224869185868,"endHours":9.410777041115526,"quality":"neutral"},{"name":"Labha","start":"09:25","end":"10:52","startHours":9.410777041115526,"endHours":10.874329213045186,"quality":"auspicious"},{"name":"Amṛta","start":"10:52","end":"12:20","startHours":10.874329213045186,"endHours":12.337881384974846,"quality":"auspicious"},{"name":"Kāla","start":"12:20","end":"13:48","startHours":12.337881384974846,"endHours":13.801433556904504,"quality":"inauspicious"},{"name":"Śubha","start":"13:48","end":"15:16","startHours":13.801433556904504,"endHours":15.264985728834164,"quality":"auspicious"},{"name":"Roga","start":"15:16","end":"16:44","startHours":15.264985728834164,"endHours":16.728537900763822,"quality":"inauspicious"},{"name":"Udveg","start":"16:44","end":"18:12","startHours":16.728537900763822,"endHours":18.19209007269348,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"18:12","end":"19:44","startHours":18.19209007269348,"endHours":19.728537900763822,"quality":"auspicious"},{"name":"Roga","start":"19:44","end":"21:16","startHours":19.728537900763822,"endHours":21.264985728834162,"quality":"inauspicious"},{"name":"Udveg","start":"21:16","end":"22:48","startHours":21.264985728834162,"endHours":22.801433556904506,"quality":"inauspicious"},{"name":"Chala","start":"22:48","end":"00:20","startHours":22.801433556904506,"endHours":24.337881384974846,"quality":"neutral"},{"name":"Labha","start":"00:20","end":"01:52","startHours":24.337881384974846,"endHours":25.874329213045186,"quality":"auspicious"},{"name":"Amṛta","start":"01:52","end":"03:25","startHours":25.874329213045186,"endHours":27.410777041115526,"quality":"auspicious"},{"name":"Kāla","start":"03:25","end":"04:57","startHours":27.410777041115526,"endHours":28.947224869185867,"quality":"inauspicious"},{"name":"Śubha","start":"04:57","end":"06:29","startHours":28.947224869185867,"endHours":30.48367269725621,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:29","end":"07:29","startHours":6.483672697256209,"endHours":7.483672697256209,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:29","end":"08:29","startHours":7.483672697256209,"endHours":8.483672697256209,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:29","end":"09:29","startHours":8.483672697256209,"endHours":9.483672697256209,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:29","end":"10:29","startHours":9.483672697256209,"endHours":10.483672697256209,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:29","end":"11:29","startHours":10.483672697256209,"endHours":11.483672697256209,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:29","end":"12:29","startHours":11.483672697256209,"endHours":12.483672697256209,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:29","end":"13:29","startHours":12.483672697256209,"endHours":13.483672697256209,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:29","end":"14:29","startHours":13.483672697256209,"endHours":14.483672697256209,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:29","end":"15:29","startHours":14.483672697256209,"endHours":15.483672697256209,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:29","end":"16:29","startHours":15.483672697256209,"endHours":16.48367269725621,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:29","end":"17:29","startHours":16.48367269725621,"endHours":17.48367269725621,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:29","end":"18:29","startHours":17.48367269725621,"endHours":18.48367269725621,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:29","end":"19:29","startHours":18.48367269725621,"endHours":19.48367269725621,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:29","end":"20:29","startHours":19.48367269725621,"endHours":20.48367269725621,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:29","end":"21:29","startHours":20.48367269725621,"endHours":21.48367269725621,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:29","end":"22:29","startHours":21.48367269725621,"endHours":22.48367269725621,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:29","end":"23:29","startHours":22.48367269725621,"endHours":23.48367269725621,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:29","end":"00:29","startHours":23.48367269725621,"endHours":24.48367269725621,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:29","end":"01:29","startHours":24.48367269725621,"endHours":25.48367269725621,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:29","end":"02:29","startHours":25.48367269725621,"endHours":26.48367269725621,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:29","end":"03:29","startHours":26.48367269725621,"endHours":27.48367269725621,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:29","end":"04:29","startHours":27.48367269725621,"endHours":28.48367269725621,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:29","end":"05:29","startHours":28.48367269725621,"endHours":29.48367269725621,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:29","end":"06:29","startHours":29.48367269725621,"endHours":30.48367269725621,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"West","rahuVasa":"North-East","anandadiYoga":{"name":"Chatra","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":5.072562414236705,"eotMinutes":-3.714883098490848,"ayanamsa":23.3816}},"calendars":{"vikram_samvat":2023,"vikram_samvatsara":"Siddhārthī","saka_samvat":1888,"saka_samvatsara":"Parābhava","bengali_samvat":1373,"malayalam_era":1142,"nanakshahi_year":497,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Caitra","lunar_month_amanta":"Caitra","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 Śukla Trayodaśī · Vikram 2023 Siddhārthī · Śaka 1888 Parābhava"},"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":"surya-walk","name":"Sūrya Walk","name_sanskrit":"सूर्य यात्रा","type":"graha","description":"Self-illumination + BG 4.1 (Sun-lineage of Gītā transmission).","step_count":6,"url":"/walk/surya-walk"},"reason":"Dedicated festival walk for Pradoṣa Vrata is not live yet; Ravivāra (Sunday) — 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 April 3, 1966 CE · Perth, Australia · Vidhyamitra","description":"April 3, 1966 CE for Perth, Australia: Śukla Trayodaśī, sūryodaya 06:29, sūryāsta 18:12.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1966-04-03","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1966-04-03","sa":"https://sa.vidhyamitra.com/city/perth/1966-04-03","hi":"https://hi.vidhyamitra.com/city/perth/1966-04-03","x-default":"https://vidhyamitra.com/city/perth/1966-04-03"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-09-06T07:40:42.140Z","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":"2026-09-06T07:40:42.140Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-09-06T07:40:42.140Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no single city is the universal center.","purna_chain":["Hosted scripture","Named-tradition interpretation","Original Vidhyamitra contemplation","Bhūmi-born material medium","Vidhyamitra portal","Responsible reader in their own kṣetra"],"claim_boundary":"The legacy purna_chain field carries a source-to-reader sequence, not a revealed physical descent, universal cosmology, or proof that software is conscious.","antaryami_responsibility_formula":"Kṣīrodakaśāyī Viṣṇu = Paramātmā = Antaryāmī. Jīva desires. Prakṛti executes through guṇas. Paramātmā witnesses, permits, remembers, guides, and sustains. Bhagavān is the ultimate source.","source_anchors":[{"label":"BG 13.23","path":"/bhagavad-gita/13/23","meaning":"upadraṣṭā-anumantā · witness-permitter"},{"label":"BG 15.15","path":"/bhagavad-gita/15/15","meaning":"the Lord seated in every heart as memory, knowledge, and forgetting"},{"label":"BG 18.61","path":"/bhagavad-gita/18/61","meaning":"Īśvara seated in the heart of all beings"}],"nama_seal":"Hare Krishna Hare Krishna · Krishna Krishna Hare Hare · Hare Rama Hare Rama · Rama Rama Hare Hare"}}}