{"id":"vidhyamitra:city-day:perth:1915-04-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/1915-04-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1915-04-01","date_display":"April 1, 1915 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":1915,"month":4,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2420588.770833,"kali_year":5016,"ahargana":1832123.2708,"sun":{"sidereal_longitude":347.929,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":177.4326,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":189.5036,"elapsed_within_tithi_degrees":9.5036},"nakshatra":{"number":14,"name":"Citrā","pada":2,"moon_longitude":177.4326,"elapsed_within_degrees":4.0992},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":165.3615},"karana":{"half_tithi_index":31,"name":"Kaulava"},"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":1915,"month":4,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2420588.770833,"ahargana":1832123.2708,"kali_year":5016,"ayanamsa_lahiri":22.669,"grahas":{"sun":{"sidereal_longitude":347.565466,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":false},"moon":{"sidereal_longitude":178.814666,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":14,"name":"Citrā","pada":2},"retrograde":false,"latitude":-3.5514},"mars":{"sidereal_longitude":326.1790659999999,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":323.59476599999994,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":321.53266600000006,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":307.825566,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":64.433966,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":305.2923,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":125.2923,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","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":1915,"month":4,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2420588.770833,"kali_year":5016,"ahargana":1832123.2708,"sun":{"sidereal_longitude":347.929,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":177.4326,"rashi":6,"rashi_name":"Kanyā"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":189.5036,"elapsed_within_tithi_degrees":9.5036},"nakshatra":{"number":14,"name":"Citrā","pada":2,"moon_longitude":177.4326,"elapsed_within_degrees":4.0992},"yoga":{"number":13,"name":"Vyāghāta","sum_longitude":165.3615},"karana":{"half_tithi_index":31,"name":"Kaulava"},"vara":{"number":6,"name":"Guruvāra (Thursday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.551,"elongation":170.496},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.551,"opposition_distance":9.504}},"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":"06:27","sunsetLocal":"18:15","solarNoonLocal":"12:21","dayLengthHours":11.793656049484735,"dayLengthDisplay":"11 Hours 47 Mins 37 Secs","nightLengthDisplay":"12 Hours 12 Mins 23 Secs","moonriseLocal":"18:42","moonsetLocal":"07:30","rahuKala":{"name":"Rāhu Kāla","start":"13:49","end":"15:18","startHours":13.82257860787145,"endHours":15.29678561405704,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"06:27","end":"07:56","startHours":6.45154357694349,"endHours":7.925750583129082,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"09:24","end":"10:52","startHours":9.399957589314674,"endHours":10.874164595500265,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:12","end":"09:36","startHours":9.203396655156595,"endHours":9.596518523472753,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:57","end":"07:15","startHours":6.942945912338688,"endHours":7.257443406991614,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:57","end":"12:44","startHours":11.9552497333697,"endHours":12.741493470002014,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:53","end":"05:40","startHours":4.87905610367886,"endHours":5.6652998403111745,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:28","end":"06:27","startHours":5.468738906153096,"endHours":6.45154357694349,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:19","end":"15:06","startHours":14.313980943266646,"endHours":15.100224679898961,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:03","end":"18:27","startHours":18.045199626428225,"endHours":18.445199626428224,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:15","end":"18:44","startHours":18.245199626428224,"endHours":18.73660196182342,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:00","end":"19:45","startHours":17.995199626428224,"endHours":19.745199626428224,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:57","end":"00:44","startHours":23.955249733369698,"endHours":24.741493470002013,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Śubha","start":"06:27","end":"07:56","startHours":6.45154357694349,"endHours":7.925750583129082,"quality":"auspicious"},{"name":"Roga","start":"07:56","end":"09:24","startHours":7.925750583129082,"endHours":9.399957589314674,"quality":"inauspicious"},{"name":"Udveg","start":"09:24","end":"10:52","startHours":9.399957589314674,"endHours":10.874164595500265,"quality":"inauspicious"},{"name":"Chala","start":"10:52","end":"12:21","startHours":10.874164595500265,"endHours":12.348371601685859,"quality":"neutral"},{"name":"Labha","start":"12:21","end":"13:49","startHours":12.348371601685859,"endHours":13.82257860787145,"quality":"auspicious"},{"name":"Amṛta","start":"13:49","end":"15:18","startHours":13.82257860787145,"endHours":15.29678561405704,"quality":"auspicious"},{"name":"Kāla","start":"15:18","end":"16:46","startHours":15.29678561405704,"endHours":16.770992620242634,"quality":"inauspicious"},{"name":"Śubha","start":"16:46","end":"18:15","startHours":16.770992620242634,"endHours":18.245199626428224,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Amṛta","start":"18:15","end":"19:46","startHours":18.245199626428224,"endHours":19.770992620242634,"quality":"auspicious"},{"name":"Kāla","start":"19:46","end":"21:18","startHours":19.770992620242634,"endHours":21.29678561405704,"quality":"inauspicious"},{"name":"Śubha","start":"21:18","end":"22:49","startHours":21.29678561405704,"endHours":22.82257860787145,"quality":"auspicious"},{"name":"Roga","start":"22:49","end":"00:21","startHours":22.82257860787145,"endHours":24.348371601685855,"quality":"inauspicious"},{"name":"Udveg","start":"00:21","end":"01:52","startHours":24.348371601685855,"endHours":25.874164595500265,"quality":"inauspicious"},{"name":"Chala","start":"01:52","end":"03:24","startHours":25.874164595500265,"endHours":27.399957589314674,"quality":"neutral"},{"name":"Labha","start":"03:24","end":"04:56","startHours":27.399957589314674,"endHours":28.92575058312908,"quality":"auspicious"},{"name":"Amṛta","start":"04:56","end":"06:27","startHours":28.92575058312908,"endHours":30.45154357694349,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:27","end":"07:27","startHours":6.45154357694349,"endHours":7.45154357694349,"planetary_lord":"Jupiter"},{"name":"Hora 2","start":"07:27","end":"08:27","startHours":7.45154357694349,"endHours":8.45154357694349,"planetary_lord":"Saturn"},{"name":"Hora 3","start":"08:27","end":"09:27","startHours":8.45154357694349,"endHours":9.45154357694349,"planetary_lord":"Moon"},{"name":"Hora 4","start":"09:27","end":"10:27","startHours":9.45154357694349,"endHours":10.45154357694349,"planetary_lord":"Mercury"},{"name":"Hora 5","start":"10:27","end":"11:27","startHours":10.45154357694349,"endHours":11.45154357694349,"planetary_lord":"Venus"},{"name":"Hora 6","start":"11:27","end":"12:27","startHours":11.45154357694349,"endHours":12.45154357694349,"planetary_lord":"Sun"},{"name":"Hora 7","start":"12:27","end":"13:27","startHours":12.45154357694349,"endHours":13.45154357694349,"planetary_lord":"Mars"},{"name":"Hora 8","start":"13:27","end":"14:27","startHours":13.45154357694349,"endHours":14.45154357694349,"planetary_lord":"Jupiter"},{"name":"Hora 9","start":"14:27","end":"15:27","startHours":14.45154357694349,"endHours":15.45154357694349,"planetary_lord":"Saturn"},{"name":"Hora 10","start":"15:27","end":"16:27","startHours":15.45154357694349,"endHours":16.45154357694349,"planetary_lord":"Moon"},{"name":"Hora 11","start":"16:27","end":"17:27","startHours":16.45154357694349,"endHours":17.45154357694349,"planetary_lord":"Mercury"},{"name":"Hora 12","start":"17:27","end":"18:27","startHours":17.45154357694349,"endHours":18.45154357694349,"planetary_lord":"Venus"},{"name":"Hora 13","start":"18:27","end":"19:27","startHours":18.45154357694349,"endHours":19.45154357694349,"planetary_lord":"Sun"},{"name":"Hora 14","start":"19:27","end":"20:27","startHours":19.45154357694349,"endHours":20.45154357694349,"planetary_lord":"Mars"},{"name":"Hora 15","start":"20:27","end":"21:27","startHours":20.45154357694349,"endHours":21.45154357694349,"planetary_lord":"Jupiter"},{"name":"Hora 16","start":"21:27","end":"22:27","startHours":21.45154357694349,"endHours":22.45154357694349,"planetary_lord":"Saturn"},{"name":"Hora 17","start":"22:27","end":"23:27","startHours":22.45154357694349,"endHours":23.45154357694349,"planetary_lord":"Moon"},{"name":"Hora 18","start":"23:27","end":"00:27","startHours":23.45154357694349,"endHours":24.45154357694349,"planetary_lord":"Mercury"},{"name":"Hora 19","start":"00:27","end":"01:27","startHours":24.45154357694349,"endHours":25.45154357694349,"planetary_lord":"Venus"},{"name":"Hora 20","start":"01:27","end":"02:27","startHours":25.45154357694349,"endHours":26.45154357694349,"planetary_lord":"Sun"},{"name":"Hora 21","start":"02:27","end":"03:27","startHours":26.45154357694349,"endHours":27.45154357694349,"planetary_lord":"Mars"},{"name":"Hora 22","start":"03:27","end":"04:27","startHours":27.45154357694349,"endHours":28.45154357694349,"planetary_lord":"Jupiter"},{"name":"Hora 23","start":"04:27","end":"05:27","startHours":28.45154357694349,"endHours":29.45154357694349,"planetary_lord":"Saturn"},{"name":"Hora 24","start":"05:27","end":"06:27","startHours":29.45154357694349,"endHours":30.45154357694349,"planetary_lord":"Moon"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Ārdrā","Punarvasu","Puṣya","Aśleṣā","Maghā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Mūla","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"unfavorable_nakshatras":["Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Kanyā","Vṛścika","Kumbha","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Tulā","Dhanu","Makara"]},"dishaShool":"South (Dakṣiṇa)","chandraVasa":"North-West","rahuVasa":"North-West","anandadiYoga":{"name":"Kāladaṇḍa","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":4.052344884413844,"eotMinutes":-4.344296101151456,"ayanamsa":22.669}},"calendars":{"vikram_samvat":1972,"vikram_samvatsara":"Vibhava","saka_samvat":1837,"saka_samvatsara":"Rākṣasa","bengali_samvat":1322,"malayalam_era":1091,"nanakshahi_year":446,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","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":"Vaiśākha Kṛṣṇa Pratipada · Vikram 1972 Vibhava · Śaka 1837 Rākṣasa"},"festivals":[],"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 April 1, 1915 CE · Perth, Australia · Vidhyamitra","description":"April 1, 1915 CE for Perth, Australia: Kṛṣṇa Pratipada, sūryodaya 06:27, sūryāsta 18:15.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/1915-04-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/1915-04-01","sa":"https://sa.vidhyamitra.com/city/perth/1915-04-01","hi":"https://hi.vidhyamitra.com/city/perth/1915-04-01","x-default":"https://vidhyamitra.com/city/perth/1915-04-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-01T04:50:57.087Z","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":"2026-06-01T04:50:57.087Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-01T04:50:57.087Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}