{"id":"vidhyamitra:city-day:perth:2021-05-30:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/perth/2021-05-30","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2021-05-30","date_display":"May 30, 2021 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":2021,"month":5,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459364.770833,"kali_year":5123,"ahargana":1870899.2708,"sun":{"sidereal_longitude":44.5591,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":271.953,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":227.3939,"elapsed_within_tithi_degrees":11.3939},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2,"moon_longitude":271.953,"elapsed_within_degrees":5.2863},"yoga":{"number":24,"name":"Śukla","sum_longitude":316.5121},"karana":{"half_tithi_index":37,"name":"Bālava"},"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":2021,"month":5,"day":30,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2459364.770833,"ahargana":1870899.2708,"kali_year":5123,"ayanamsa_lahiri":24.1521,"grahas":{"sun":{"sidereal_longitude":44.721338,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":274.064838,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false,"latitude":-2.9624},"mars":{"sidereal_longitude":87.865138,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":60.438537999999994,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":true},"jupiter":{"sidereal_longitude":307.269938,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":1},"retrograde":false},"venus":{"sidereal_longitude":61.288437999999985,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":289.3489380000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":true},"rahu":{"sidereal_longitude":50.7532,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":230.7532,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","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":2021,"month":5,"day":30,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459364.770833,"kali_year":5123,"ahargana":1870899.2708,"sun":{"sidereal_longitude":44.5591,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":271.953,"rashi":10,"rashi_name":"Makara"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":227.3939,"elapsed_within_tithi_degrees":11.3939},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":2,"moon_longitude":271.953,"elapsed_within_degrees":5.2863},"yoga":{"number":24,"name":"Śukla","sum_longitude":316.5121},"karana":{"half_tithi_index":37,"name":"Bālava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-2.962,"elongation":132.606},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-2.962,"opposition_distance":47.394}},"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":"07:07","sunsetLocal":"17:21","solarNoonLocal":"12:14","dayLengthHours":10.221465488600563,"dayLengthDisplay":"10 Hours 13 Mins 17 Secs","nightLengthDisplay":"13 Hours 46 Mins 43 Secs","moonriseLocal":"20:34","moonsetLocal":"10:28","rahuKala":{"name":"Rāhu Kāla","start":"16:04","end":"17:21","startHours":16.065061829364655,"endHours":17.342745015439725,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"12:14","end":"13:31","startHours":12.232012271139443,"endHours":13.509695457214514,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:47","end":"16:04","startHours":14.787378643289584,"endHours":16.065061829364655,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:30","end":"09:51","startHours":9.50628814084596,"endHours":9.847003657132646,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:33","end":"07:49","startHours":7.547173922197519,"endHours":7.819746335226868,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:53","end":"12:34","startHours":11.891296754852757,"endHours":12.572727787426128,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:46","end":"06:26","startHours":5.75841746169242,"endHours":6.439848494265791,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"06:16","end":"07:07","startHours":6.269490736122449,"endHours":7.121279526839162,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:56","end":"14:37","startHours":13.935589852572871,"endHours":14.617020885146243,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:09","end":"17:33","startHours":17.142745015439726,"endHours":17.542745015439724,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:21","end":"17:46","startHours":17.342745015439725,"endHours":17.76863941079808,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:06","end":"18:51","startHours":17.092745015439725,"endHours":18.842745015439725,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:53","end":"00:34","startHours":23.891296754852757,"endHours":24.57272778742613,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"07:07","end":"08:24","startHours":7.121279526839162,"endHours":8.398962712914232,"quality":"inauspicious"},{"name":"Chala","start":"08:24","end":"09:41","startHours":8.398962712914232,"endHours":9.676645898989303,"quality":"neutral"},{"name":"Labha","start":"09:41","end":"10:57","startHours":9.676645898989303,"endHours":10.954329085064373,"quality":"auspicious"},{"name":"Amṛta","start":"10:57","end":"12:14","startHours":10.954329085064373,"endHours":12.232012271139443,"quality":"auspicious"},{"name":"Kāla","start":"12:14","end":"13:31","startHours":12.232012271139443,"endHours":13.509695457214514,"quality":"inauspicious"},{"name":"Śubha","start":"13:31","end":"14:47","startHours":13.509695457214514,"endHours":14.787378643289584,"quality":"auspicious"},{"name":"Roga","start":"14:47","end":"16:04","startHours":14.787378643289584,"endHours":16.065061829364655,"quality":"inauspicious"},{"name":"Udveg","start":"16:04","end":"17:21","startHours":16.065061829364655,"endHours":17.342745015439725,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:21","end":"19:04","startHours":17.342745015439725,"endHours":19.065061829364655,"quality":"auspicious"},{"name":"Roga","start":"19:04","end":"20:47","startHours":19.065061829364655,"endHours":20.787378643289586,"quality":"inauspicious"},{"name":"Udveg","start":"20:47","end":"22:31","startHours":20.787378643289586,"endHours":22.509695457214512,"quality":"inauspicious"},{"name":"Chala","start":"22:31","end":"00:14","startHours":22.509695457214512,"endHours":24.232012271139443,"quality":"neutral"},{"name":"Labha","start":"00:14","end":"01:57","startHours":24.232012271139443,"endHours":25.954329085064373,"quality":"auspicious"},{"name":"Amṛta","start":"01:57","end":"03:41","startHours":25.954329085064373,"endHours":27.676645898989303,"quality":"auspicious"},{"name":"Kāla","start":"03:41","end":"05:24","startHours":27.676645898989303,"endHours":29.398962712914233,"quality":"inauspicious"},{"name":"Śubha","start":"05:24","end":"07:07","startHours":29.398962712914233,"endHours":31.12127952683916,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"07:07","end":"08:07","startHours":7.121279526839162,"endHours":8.121279526839162,"planetary_lord":"Sun"},{"name":"Hora 2","start":"08:07","end":"09:07","startHours":8.121279526839162,"endHours":9.121279526839162,"planetary_lord":"Mars"},{"name":"Hora 3","start":"09:07","end":"10:07","startHours":9.121279526839162,"endHours":10.121279526839162,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"10:07","end":"11:07","startHours":10.121279526839162,"endHours":11.121279526839162,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"11:07","end":"12:07","startHours":11.121279526839162,"endHours":12.121279526839162,"planetary_lord":"Moon"},{"name":"Hora 6","start":"12:07","end":"13:07","startHours":12.121279526839162,"endHours":13.121279526839162,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"13:07","end":"14:07","startHours":13.121279526839162,"endHours":14.121279526839162,"planetary_lord":"Venus"},{"name":"Hora 8","start":"14:07","end":"15:07","startHours":14.121279526839162,"endHours":15.121279526839162,"planetary_lord":"Sun"},{"name":"Hora 9","start":"15:07","end":"16:07","startHours":15.121279526839162,"endHours":16.12127952683916,"planetary_lord":"Mars"},{"name":"Hora 10","start":"16:07","end":"17:07","startHours":16.12127952683916,"endHours":17.12127952683916,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"17:07","end":"18:07","startHours":17.12127952683916,"endHours":18.12127952683916,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"18:07","end":"19:07","startHours":18.12127952683916,"endHours":19.12127952683916,"planetary_lord":"Moon"},{"name":"Hora 13","start":"19:07","end":"20:07","startHours":19.12127952683916,"endHours":20.12127952683916,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"20:07","end":"21:07","startHours":20.12127952683916,"endHours":21.12127952683916,"planetary_lord":"Venus"},{"name":"Hora 15","start":"21:07","end":"22:07","startHours":21.12127952683916,"endHours":22.12127952683916,"planetary_lord":"Sun"},{"name":"Hora 16","start":"22:07","end":"23:07","startHours":22.12127952683916,"endHours":23.12127952683916,"planetary_lord":"Mars"},{"name":"Hora 17","start":"23:07","end":"00:07","startHours":23.12127952683916,"endHours":24.12127952683916,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"00:07","end":"01:07","startHours":24.12127952683916,"endHours":25.12127952683916,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"01:07","end":"02:07","startHours":25.12127952683916,"endHours":26.12127952683916,"planetary_lord":"Moon"},{"name":"Hora 20","start":"02:07","end":"03:07","startHours":26.12127952683916,"endHours":27.12127952683916,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"03:07","end":"04:07","startHours":27.12127952683916,"endHours":28.12127952683916,"planetary_lord":"Venus"},{"name":"Hora 22","start":"04:07","end":"05:07","startHours":28.12127952683916,"endHours":29.12127952683916,"planetary_lord":"Sun"},{"name":"Hora 23","start":"05:07","end":"06:07","startHours":29.12127952683916,"endHours":30.12127952683916,"planetary_lord":"Mars"},{"name":"Hora 24","start":"06:07","end":"07:07","startHours":30.12127952683916,"endHours":31.12127952683916,"planetary_lord":"Jupiter"}],"taraBala":{"favorable_nakshatras":["Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Puṣya","Hasta","Citrā","Svātī","Viśākhā","Anurādhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Aśleṣā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Mithuna","Karka","Tulā","Vṛścika","Makara","Mīna"],"unfavorable_rashis":["Meṣa","Vṛṣabha","Siṃha","Kanyā","Dhanu","Kumbha"]},"dishaShool":"West (Paścim)","chandraVasa":"South-East","rahuVasa":"North-East","anandadiYoga":{"name":"Amṛta","quality":"Auspicious"},"drikRitu":"Grīṣma (Summer) (Drik)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":21.777271450152075,"eotMinutes":2.6372637316334417,"ayanamsa":24.1521}},"calendars":{"vikram_samvat":2078,"vikram_samvatsara":"Ānanda","saka_samvat":1943,"saka_samvatsara":"Plava","bengali_samvat":1428,"malayalam_era":1197,"nanakshahi_year":552,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Kṛṣṇa Pakṣa","solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Kṛṣṇa Caturthī · Vikram 2078 Ānanda · Śaka 1943 Plava"},"festivals":[{"id":"vrishabha-sankranti","name":"Vṛṣabha Saṅkrānti","name_sanskrit":"वृषभ सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Taurus.","vrata":false,"detection":{"sun_rashi":"Vṛṣabha"},"precedence":5},{"id":"sankashti-chaturthi","name":"Saṅkaṣṭī Caturthī","name_sanskrit":"सङ्कष्टी चतुर्थी","tradition":"Pan-Hindu","associated_deity":"Gaṇeśa","significance":"Monthly Gaṇeśa vrata.","vrata":true,"detection":{"tithi_number":19,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"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":"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 May 30, 2021 CE · Perth, Australia · Vidhyamitra","description":"May 30, 2021 CE for Perth, Australia: Kṛṣṇa Caturthī, sūryodaya 07:07, sūryāsta 17:21.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/perth/2021-05-30","hreflang_alternates":{"en":"https://vidhyamitra.com/city/perth/2021-05-30","sa":"https://sa.vidhyamitra.com/city/perth/2021-05-30","hi":"https://hi.vidhyamitra.com/city/perth/2021-05-30","x-default":"https://vidhyamitra.com/city/perth/2021-05-30"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T21:32:53.774Z","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":"2026-05-14T21:32:53.774Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T21:32:53.774Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}