{"id":"vidhyamitra:city-day:perth:1965-01-20:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1965-01-20","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1965-01-20","date_display":"January 20, 1965 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":1965,"month":1,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438780.770833,"kali_year":5066,"ahargana":1850315.2708,"sun":{"sidereal_longitude":276.4312,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":129.5972,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":213.166,"elapsed_within_tithi_degrees":9.166},"nakshatra":{"number":10,"name":"Maghā","pada":3,"moon_longitude":129.5972,"elapsed_within_degrees":9.5972},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":46.0284},"karana":{"half_tithi_index":35,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":1965,"month":1,"day":20,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2438780.770833,"ahargana":1850315.2708,"kali_year":5066,"ayanamsa_lahiri":23.3648,"grahas":{"sun":{"sidereal_longitude":276.4172980000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"moon":{"sidereal_longitude":131.02799800000003,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":4},"retrograde":false,"latitude":4.1777},"mars":{"sidereal_longitude":154.60819800000002,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":256.02549799999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":23.591597999999976,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":256.78559799999994,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":2},"retrograde":false},"saturn":{"sidereal_longitude":310.51519800000005,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":2},"retrograde":false},"rahu":{"sidereal_longitude":61.3926,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":241.3926,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"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":1965,"month":1,"day":20,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438780.770833,"kali_year":5066,"ahargana":1850315.2708,"sun":{"sidereal_longitude":276.4312,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":129.5972,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":18,"name":"Tṛtīyā","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Tṛtīyā","elongation_degrees":213.166,"elapsed_within_tithi_degrees":9.166},"nakshatra":{"number":10,"name":"Maghā","pada":3,"moon_longitude":129.5972,"elapsed_within_degrees":9.5972},"yoga":{"number":4,"name":"Saubhāgya","sum_longitude":46.0284},"karana":{"half_tithi_index":35,"name":"Viṣṭi"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.178,"elongation":146.834},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.178,"opposition_distance":33.166}},"eclipse_window_40days":[{"offset_days":-17,"type":"solar","occurs":true,"moon_latitude":-1.5,"elongation":2.813}]},"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":"05:30","sunsetLocal":"19:25","solarNoonLocal":"12:28","dayLengthHours":13.911779258767346,"dayLengthDisplay":"13 Hours 54 Mins 42 Secs","nightLengthDisplay":"10 Hours 05 Mins 18 Secs","moonriseLocal":"21:08","moonsetLocal":"08:24","rahuKala":{"name":"Rāhu Kāla","start":"12:28","end":"14:12","startHours":12.458705055620488,"endHours":14.197677462966407,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:15","end":"08:59","startHours":7.241787833582733,"endHours":8.980760240928651,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:43","end":"12:28","startHours":10.719732648274569,"endHours":12.458705055620488,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:45","end":"09:13","startHours":8.748897253282529,"endHours":9.212623228574774,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:05","end":"06:27","startHours":6.0824728953521205,"endHours":6.453453675585917,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:00","end":"12:55","startHours":11.994979080328243,"endHours":12.922431030912733,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"03:39","end":"04:35","startHours":3.647911525067835,"endHours":4.575363475652325,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"04:21","end":"05:30","startHours":4.343500488006203,"endHours":5.502815426236815,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:47","end":"15:42","startHours":14.777334932081711,"endHours":15.7047868826662,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"19:13","end":"19:37","startHours":19.214594685004162,"endHours":19.61459468500416,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"19:25","end":"20:00","startHours":19.41459468500416,"endHours":19.99425215411947,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"19:10","end":"20:55","startHours":19.16459468500416,"endHours":20.91459468500416,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:00","end":"00:55","startHours":23.994979080328243,"endHours":24.922431030912733,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"05:30","end":"07:15","startHours":5.502815426236815,"endHours":7.241787833582733,"quality":"auspicious"},{"name":"Amṛta","start":"07:15","end":"08:59","startHours":7.241787833582733,"endHours":8.980760240928651,"quality":"auspicious"},{"name":"Kāla","start":"08:59","end":"10:43","startHours":8.980760240928651,"endHours":10.719732648274569,"quality":"inauspicious"},{"name":"Śubha","start":"10:43","end":"12:28","startHours":10.719732648274569,"endHours":12.458705055620488,"quality":"auspicious"},{"name":"Roga","start":"12:28","end":"14:12","startHours":12.458705055620488,"endHours":14.197677462966407,"quality":"inauspicious"},{"name":"Udveg","start":"14:12","end":"15:56","startHours":14.197677462966407,"endHours":15.936649870312324,"quality":"inauspicious"},{"name":"Chala","start":"15:56","end":"17:41","startHours":15.936649870312324,"endHours":17.675622277658242,"quality":"neutral"},{"name":"Labha","start":"17:41","end":"19:25","startHours":17.675622277658242,"endHours":19.41459468500416,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"19:25","end":"20:41","startHours":19.41459468500416,"endHours":20.675622277658242,"quality":"inauspicious"},{"name":"Chala","start":"20:41","end":"21:56","startHours":20.675622277658242,"endHours":21.936649870312323,"quality":"neutral"},{"name":"Labha","start":"21:56","end":"23:12","startHours":21.936649870312323,"endHours":23.197677462966407,"quality":"auspicious"},{"name":"Amṛta","start":"23:12","end":"00:28","startHours":23.197677462966407,"endHours":24.458705055620488,"quality":"auspicious"},{"name":"Kāla","start":"00:28","end":"01:43","startHours":24.458705055620488,"endHours":25.71973264827457,"quality":"inauspicious"},{"name":"Śubha","start":"01:43","end":"02:59","startHours":25.71973264827457,"endHours":26.980760240928653,"quality":"auspicious"},{"name":"Roga","start":"02:59","end":"04:15","startHours":26.980760240928653,"endHours":28.241787833582734,"quality":"inauspicious"},{"name":"Udveg","start":"04:15","end":"05:30","startHours":28.241787833582734,"endHours":29.502815426236815,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"05:30","end":"06:30","startHours":5.502815426236815,"endHours":6.502815426236815,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"06:30","end":"07:30","startHours":6.502815426236815,"endHours":7.502815426236815,"planetary_lord":"Venus"},{"name":"Hora 3","start":"07:30","end":"08:30","startHours":7.502815426236815,"endHours":8.502815426236815,"planetary_lord":"Sun"},{"name":"Hora 4","start":"08:30","end":"09:30","startHours":8.502815426236815,"endHours":9.502815426236815,"planetary_lord":"Mars"},{"name":"Hora 5","start":"09:30","end":"10:30","startHours":9.502815426236815,"endHours":10.502815426236815,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"10:30","end":"11:30","startHours":10.502815426236815,"endHours":11.502815426236815,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"11:30","end":"12:30","startHours":11.502815426236815,"endHours":12.502815426236815,"planetary_lord":"Moon"},{"name":"Hora 8","start":"12:30","end":"13:30","startHours":12.502815426236815,"endHours":13.502815426236815,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"13:30","end":"14:30","startHours":13.502815426236815,"endHours":14.502815426236815,"planetary_lord":"Venus"},{"name":"Hora 10","start":"14:30","end":"15:30","startHours":14.502815426236815,"endHours":15.502815426236815,"planetary_lord":"Sun"},{"name":"Hora 11","start":"15:30","end":"16:30","startHours":15.502815426236815,"endHours":16.502815426236815,"planetary_lord":"Mars"},{"name":"Hora 12","start":"16:30","end":"17:30","startHours":16.502815426236815,"endHours":17.502815426236815,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"17:30","end":"18:30","startHours":17.502815426236815,"endHours":18.502815426236815,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"18:30","end":"19:30","startHours":18.502815426236815,"endHours":19.502815426236815,"planetary_lord":"Moon"},{"name":"Hora 15","start":"19:30","end":"20:30","startHours":19.502815426236815,"endHours":20.502815426236815,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"20:30","end":"21:30","startHours":20.502815426236815,"endHours":21.502815426236815,"planetary_lord":"Venus"},{"name":"Hora 17","start":"21:30","end":"22:30","startHours":21.502815426236815,"endHours":22.502815426236815,"planetary_lord":"Sun"},{"name":"Hora 18","start":"22:30","end":"23:30","startHours":22.502815426236815,"endHours":23.502815426236815,"planetary_lord":"Mars"},{"name":"Hora 19","start":"23:30","end":"00:30","startHours":23.502815426236815,"endHours":24.502815426236815,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"00:30","end":"01:30","startHours":24.502815426236815,"endHours":25.502815426236815,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"01:30","end":"02:30","startHours":25.502815426236815,"endHours":26.502815426236815,"planetary_lord":"Moon"},{"name":"Hora 22","start":"02:30","end":"03:30","startHours":26.502815426236815,"endHours":27.502815426236815,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"03:30","end":"04:30","startHours":27.502815426236815,"endHours":28.502815426236815,"planetary_lord":"Venus"},{"name":"Hora 24","start":"04:30","end":"05:30","startHours":28.502815426236815,"endHours":29.502815426236815,"planetary_lord":"Sun"}],"taraBala":{"favorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Svātī","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj"],"unfavorable_nakshatras":["Aśvinī","Punarvasu","Puṣya","Aśleṣā","Maghā","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Bhādrapadā","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":"North (Uttara)","chandraVasa":"West","rahuVasa":"South-West","anandadiYoga":{"name":"Mausala","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-20.194019154847215,"eotMinutes":-10.9643033372293,"ayanamsa":23.3648}},"calendars":{"vikram_samvat":2022,"vikram_samvatsara":"Kālayukta","saka_samvat":1887,"saka_samvatsara":"Viśvāvasu","bengali_samvat":1372,"malayalam_era":1141,"nanakshahi_year":496,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","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":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Tṛtīyā · Vikram 2022 Kālayukta · Śaka 1887 Viśvāvasu"},"festivals":[],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — 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 20, 1965 CE · Perth, Australia · Vidhyamitra","description":"January 20, 1965 CE for Perth, Australia: Kṛṣṇa Tṛtīyā, sūryodaya 05:30, sūryāsta 19:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1965-01-20","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1965-01-20","sa":"https://sa.vidhyamitra.com/city/perth/1965-01-20","hi":"https://hi.vidhyamitra.com/city/perth/1965-01-20","x-default":"https://vidhyamitra.com/city/perth/1965-01-20"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-02T08:22:52.241Z","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":"2026-06-02T08:22:52.241Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-02T08:22:52.241Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}