{"id":"vidhyamitra:city-day:perth:2188-04-12:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2188-04-12","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2188-04-12","date_display":"April 12, 2188 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":2188,"month":4,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2520312.770833,"kali_year":5289,"ahargana":1931847.2708,"sun":{"sidereal_longitude":356.1383,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":181.8284,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":185.6901,"elapsed_within_tithi_degrees":5.6901},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":181.8284,"elapsed_within_degrees":8.4951},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":177.9668},"karana":{"half_tithi_index":30,"name":"Bālava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":2188,"month":4,"day":12,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2520312.770833,"ahargana":1931847.2708,"kali_year":5289,"ayanamsa_lahiri":26.4831,"grahas":{"sun":{"sidereal_longitude":356.430976,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":182.434976,"rashi":{"number":7,"name":"Tulā"},"nakshatra":{"number":14,"name":"Citrā","pada":3},"retrograde":false,"latitude":3.8805},"mars":{"sidereal_longitude":6.2179760000000215,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":7.333375999999987,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":325.095276,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":2},"retrograde":false},"venus":{"sidereal_longitude":1.4693760000000111,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":1},"retrograde":true},"saturn":{"sidereal_longitude":171.87987599999997,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":61.4349,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":241.4349,"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":2188,"month":4,"day":12,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2520312.770833,"kali_year":5289,"ahargana":1931847.2708,"sun":{"sidereal_longitude":356.1383,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":181.8284,"rashi":7,"rashi_name":"Tulā"},"tithi":{"number":16,"name":"Pratipada","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Pratipada","elongation_degrees":185.6901,"elapsed_within_tithi_degrees":5.6901},"nakshatra":{"number":14,"name":"Citrā","pada":3,"moon_longitude":181.8284,"elapsed_within_degrees":8.4951},"yoga":{"number":14,"name":"Harṣaṇa","sum_longitude":177.9668},"karana":{"half_tithi_index":30,"name":"Bālava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.881,"elongation":174.31},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.881,"opposition_distance":5.69}},"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":"06:36","sunsetLocal":"17:59","solarNoonLocal":"12:18","dayLengthHours":11.385003458987988,"dayLengthDisplay":"11 Hours 23 Mins 06 Secs","nightLengthDisplay":"12 Hours 36 Mins 54 Secs","moonriseLocal":"18:11","moonsetLocal":"07:13","rahuKala":{"name":"Rāhu Kāla","start":"09:27","end":"10:52","startHours":9.447107487912024,"endHours":10.870232920285522,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:43","end":"15:08","startHours":13.71648378503252,"endHours":15.139609217406019,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:36","end":"08:01","startHours":6.6008566231650265,"endHours":8.023982055538525,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:15","end":"09:38","startHours":9.257357430262225,"endHours":9.636857545561824,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:05","end":"07:23","startHours":7.075231767289526,"endHours":7.378831859529205,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:55","end":"12:40","startHours":11.91385823735942,"endHours":12.67285846795862,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:05","end":"05:51","startHours":5.082856161966628,"endHours":5.841856392565827,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:39","end":"06:36","startHours":5.652106334916027,"endHours":6.6008566231650265,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:11","end":"14:57","startHours":14.190858929157018,"endHours":14.949859159756217,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:47","end":"18:11","startHours":17.785860082153015,"endHours":18.185860082153013,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:59","end":"18:28","startHours":17.985860082153014,"endHours":18.460235226277515,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:44","end":"19:29","startHours":17.735860082153014,"endHours":19.485860082153014,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:55","end":"00:40","startHours":23.91385823735942,"endHours":24.67285846795862,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:36","end":"08:01","startHours":6.6008566231650265,"endHours":8.023982055538525,"quality":"inauspicious"},{"name":"Śubha","start":"08:01","end":"09:27","startHours":8.023982055538525,"endHours":9.447107487912024,"quality":"auspicious"},{"name":"Roga","start":"09:27","end":"10:52","startHours":9.447107487912024,"endHours":10.870232920285522,"quality":"inauspicious"},{"name":"Udveg","start":"10:52","end":"12:18","startHours":10.870232920285522,"endHours":12.29335835265902,"quality":"inauspicious"},{"name":"Chala","start":"12:18","end":"13:43","startHours":12.29335835265902,"endHours":13.71648378503252,"quality":"neutral"},{"name":"Labha","start":"13:43","end":"15:08","startHours":13.71648378503252,"endHours":15.139609217406019,"quality":"auspicious"},{"name":"Amṛta","start":"15:08","end":"16:34","startHours":15.139609217406019,"endHours":16.562734649779514,"quality":"auspicious"},{"name":"Kāla","start":"16:34","end":"17:59","startHours":16.562734649779514,"endHours":17.985860082153014,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"17:59","end":"19:34","startHours":17.985860082153014,"endHours":19.562734649779514,"quality":"auspicious"},{"name":"Amṛta","start":"19:34","end":"21:08","startHours":19.562734649779514,"endHours":21.13960921740602,"quality":"auspicious"},{"name":"Kāla","start":"21:08","end":"22:43","startHours":21.13960921740602,"endHours":22.71648378503252,"quality":"inauspicious"},{"name":"Śubha","start":"22:43","end":"00:18","startHours":22.71648378503252,"endHours":24.29335835265902,"quality":"auspicious"},{"name":"Roga","start":"00:18","end":"01:52","startHours":24.29335835265902,"endHours":25.87023292028552,"quality":"inauspicious"},{"name":"Udveg","start":"01:52","end":"03:27","startHours":25.87023292028552,"endHours":27.44710748791202,"quality":"inauspicious"},{"name":"Chala","start":"03:27","end":"05:01","startHours":27.44710748791202,"endHours":29.023982055538525,"quality":"neutral"},{"name":"Labha","start":"05:01","end":"06:36","startHours":29.023982055538525,"endHours":30.600856623165026,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:36","end":"07:36","startHours":6.6008566231650265,"endHours":7.6008566231650265,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:36","end":"08:36","startHours":7.6008566231650265,"endHours":8.600856623165026,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:36","end":"09:36","startHours":8.600856623165026,"endHours":9.600856623165026,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:36","end":"10:36","startHours":9.600856623165026,"endHours":10.600856623165026,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:36","end":"11:36","startHours":10.600856623165026,"endHours":11.600856623165026,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:36","end":"12:36","startHours":11.600856623165026,"endHours":12.600856623165026,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:36","end":"13:36","startHours":12.600856623165026,"endHours":13.600856623165026,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:36","end":"14:36","startHours":13.600856623165026,"endHours":14.600856623165026,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:36","end":"15:36","startHours":14.600856623165026,"endHours":15.600856623165026,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:36","end":"16:36","startHours":15.600856623165026,"endHours":16.600856623165026,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:36","end":"17:36","startHours":16.600856623165026,"endHours":17.600856623165026,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:36","end":"18:36","startHours":17.600856623165026,"endHours":18.600856623165026,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:36","end":"19:36","startHours":18.600856623165026,"endHours":19.600856623165026,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:36","end":"20:36","startHours":19.600856623165026,"endHours":20.600856623165026,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:36","end":"21:36","startHours":20.600856623165026,"endHours":21.600856623165026,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:36","end":"22:36","startHours":21.600856623165026,"endHours":22.600856623165026,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:36","end":"23:36","startHours":22.600856623165026,"endHours":23.600856623165026,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:36","end":"00:36","startHours":23.600856623165026,"endHours":24.600856623165026,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:36","end":"01:36","startHours":24.600856623165026,"endHours":25.600856623165026,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:36","end":"02:36","startHours":25.600856623165026,"endHours":26.600856623165026,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:36","end":"03:36","startHours":26.600856623165026,"endHours":27.600856623165026,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:36","end":"04:36","startHours":27.600856623165026,"endHours":28.600856623165026,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:36","end":"05:36","startHours":28.600856623165026,"endHours":29.600856623165026,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:36","end":"06:36","startHours":29.600856623165026,"endHours":30.600856623165026,"planetary_lord":"Mercury"}],"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":["Meṣa","Karka","Siṃha","Tulā","Dhanu","Mīna"],"unfavorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Vṛścika","Makara","Kumbha"]},"dishaShool":"East (Pūrva)","chandraVasa":"North","rahuVasa":"East","anandadiYoga":{"name":"Mudgara","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":8.90851630496736,"eotMinutes":-1.043501159541278,"ayanamsa":26.4831}},"calendars":{"vikram_samvat":2245,"vikram_samvatsara":"Plava","saka_samvat":2110,"saka_samvatsara":"Sarvadhāri","bengali_samvat":1595,"malayalam_era":1364,"nanakshahi_year":719,"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 2245 Plava · Śaka 2110 Sarvadhāri"},"festivals":[],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — 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 12, 2188 CE · Perth, Australia · Vidhyamitra","description":"April 12, 2188 CE for Perth, Australia: Kṛṣṇa Pratipada, sūryodaya 06:36, sūryāsta 17:59.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2188-04-12","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2188-04-12","sa":"https://sa.vidhyamitra.com/city/perth/2188-04-12","hi":"https://hi.vidhyamitra.com/city/perth/2188-04-12","x-default":"https://vidhyamitra.com/city/perth/2188-04-12"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T14:42:50.849Z","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":"2026-05-31T14:42:50.849Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T14:42:50.849Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}