{"id":"vidhyamitra:city-day:siliguri:1981-06-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/siliguri/1981-06-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-06-01","date_display":"June 1, 1981 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":1981,"month":6,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444756.770833,"kali_year":5083,"ahargana":1856291.2708,"sun":{"sidereal_longitude":46.7965,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":27.7356,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":340.9391,"elapsed_within_tithi_degrees":4.9391},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1,"moon_longitude":27.7356,"elapsed_within_degrees":1.0689},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":74.5321},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"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":1981,"month":6,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444756.770833,"ahargana":1856291.2708,"kali_year":5083,"ayanamsa_lahiri":23.5934,"grahas":{"sun":{"sidereal_longitude":46.87987099999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":4,"name":"Rohiṇī","pada":3},"retrograde":false},"moon":{"sidereal_longitude":26.336971000000005,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":4},"retrograde":false,"latitude":-4.3848},"mars":{"sidereal_longitude":33.64707099999998,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":69.34917100000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false},"jupiter":{"sidereal_longitude":157.07067099999995,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":false},"venus":{"sidereal_longitude":61.50657100000001,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":5,"name":"Mr̥gaśirā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":159.16947099999993,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":104.7554,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":4},"retrograde":false},"ketu":{"sidereal_longitude":284.7554,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":1981,"month":6,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444756.770833,"kali_year":5083,"ahargana":1856291.2708,"sun":{"sidereal_longitude":46.7965,"rashi":2,"rashi_name":"Vṛṣabha"},"moon":{"sidereal_longitude":27.7356,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":29,"name":"Caturdaśī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturdaśī","elongation_degrees":340.9391,"elapsed_within_tithi_degrees":4.9391},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1,"moon_longitude":27.7356,"elapsed_within_degrees":1.0689},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":74.5321},"karana":{"half_tithi_index":56,"name":"Viṣṭi"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-4.385,"elongation":19.061},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-4.385,"opposition_distance":160.939}},"eclipse_window_40days":[]},"city":{"slug":"siliguri","name":"Siliguri, West Bengal","lat":26.7271,"lon":88.3953,"tz_offset_hours":5.5,"state":"West Bengal","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"siliguri","name":"Siliguri, West Bengal","lat":26.7271,"lon":88.3953,"tz_offset_hours":5.5,"state":"West Bengal","country":"IN","tier":"tier-1"},"sunriseLocal":"04:43","sunsetLocal":"18:25","solarNoonLocal":"11:34","dayLengthHours":13.703617117246392,"dayLengthDisplay":"13 Hours 42 Mins 13 Secs","nightLengthDisplay":"10 Hours 17 Mins 47 Secs","moonriseLocal":"03:32","moonsetLocal":"16:52","rahuKala":{"name":"Rāhu Kāla","start":"06:26","end":"08:09","startHours":6.428869113684302,"endHours":8.141821253340101,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"09:51","end":"11:34","startHours":9.854773392995899,"endHours":11.567725532651698,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:17","end":"15:00","startHours":13.280677672307498,"endHours":14.993629811963295,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"07:55","end":"08:22","startHours":7.913427634719327,"endHours":8.370214871960874,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"05:17","end":"05:39","startHours":5.286901020580435,"endHours":5.652330810373672,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:07","end":"12:01","startHours":11.110938295410152,"endHours":12.024512769893244,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"02:53","end":"03:48","startHours":2.8887680250623164,"endHours":3.8023424995454094,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"03:34","end":"04:43","startHours":3.573948880924636,"endHours":4.715916974028502,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:51","end":"14:46","startHours":13.85166171885943,"endHours":14.765236193342524,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:13","end":"18:37","startHours":18.219534091274895,"endHours":18.619534091274893,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:25","end":"18:59","startHours":18.419534091274894,"endHours":18.990518137826825,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:10","end":"19:55","startHours":18.169534091274894,"endHours":19.919534091274894,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:07","end":"00:01","startHours":23.110938295410154,"endHours":24.024512769893246,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"04:43","end":"06:26","startHours":4.715916974028502,"endHours":6.428869113684302,"quality":"auspicious"},{"name":"Kāla","start":"06:26","end":"08:09","startHours":6.428869113684302,"endHours":8.141821253340101,"quality":"inauspicious"},{"name":"Śubha","start":"08:09","end":"09:51","startHours":8.141821253340101,"endHours":9.854773392995899,"quality":"auspicious"},{"name":"Roga","start":"09:51","end":"11:34","startHours":9.854773392995899,"endHours":11.567725532651698,"quality":"inauspicious"},{"name":"Udveg","start":"11:34","end":"13:17","startHours":11.567725532651698,"endHours":13.280677672307498,"quality":"inauspicious"},{"name":"Chala","start":"13:17","end":"15:00","startHours":13.280677672307498,"endHours":14.993629811963295,"quality":"neutral"},{"name":"Labha","start":"15:00","end":"16:42","startHours":14.993629811963295,"endHours":16.706581951619093,"quality":"auspicious"},{"name":"Amṛta","start":"16:42","end":"18:25","startHours":16.706581951619093,"endHours":18.419534091274894,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"18:25","end":"19:42","startHours":18.419534091274894,"endHours":19.706581951619096,"quality":"neutral"},{"name":"Labha","start":"19:42","end":"21:00","startHours":19.706581951619096,"endHours":20.993629811963295,"quality":"auspicious"},{"name":"Amṛta","start":"21:00","end":"22:17","startHours":20.993629811963295,"endHours":22.280677672307498,"quality":"auspicious"},{"name":"Kāla","start":"22:17","end":"23:34","startHours":22.280677672307498,"endHours":23.5677255326517,"quality":"inauspicious"},{"name":"Śubha","start":"23:34","end":"00:51","startHours":23.5677255326517,"endHours":24.8547733929959,"quality":"auspicious"},{"name":"Roga","start":"00:51","end":"02:09","startHours":24.8547733929959,"endHours":26.1418212533401,"quality":"inauspicious"},{"name":"Udveg","start":"02:09","end":"03:26","startHours":26.1418212533401,"endHours":27.4288691136843,"quality":"inauspicious"},{"name":"Chala","start":"03:26","end":"04:43","startHours":27.4288691136843,"endHours":28.715916974028502,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"04:43","end":"05:43","startHours":4.715916974028502,"endHours":5.715916974028502,"planetary_lord":"Moon"},{"name":"Hora 2","start":"05:43","end":"06:43","startHours":5.715916974028502,"endHours":6.715916974028502,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"06:43","end":"07:43","startHours":6.715916974028502,"endHours":7.715916974028502,"planetary_lord":"Venus"},{"name":"Hora 4","start":"07:43","end":"08:43","startHours":7.715916974028502,"endHours":8.715916974028502,"planetary_lord":"Sun"},{"name":"Hora 5","start":"08:43","end":"09:43","startHours":8.715916974028502,"endHours":9.715916974028502,"planetary_lord":"Mars"},{"name":"Hora 6","start":"09:43","end":"10:43","startHours":9.715916974028502,"endHours":10.715916974028502,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"10:43","end":"11:43","startHours":10.715916974028502,"endHours":11.715916974028502,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"11:43","end":"12:43","startHours":11.715916974028502,"endHours":12.715916974028502,"planetary_lord":"Moon"},{"name":"Hora 9","start":"12:43","end":"13:43","startHours":12.715916974028502,"endHours":13.715916974028502,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"13:43","end":"14:43","startHours":13.715916974028502,"endHours":14.715916974028502,"planetary_lord":"Venus"},{"name":"Hora 11","start":"14:43","end":"15:43","startHours":14.715916974028502,"endHours":15.715916974028502,"planetary_lord":"Sun"},{"name":"Hora 12","start":"15:43","end":"16:43","startHours":15.715916974028502,"endHours":16.715916974028502,"planetary_lord":"Mars"},{"name":"Hora 13","start":"16:43","end":"17:43","startHours":16.715916974028502,"endHours":17.715916974028502,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"17:43","end":"18:43","startHours":17.715916974028502,"endHours":18.715916974028502,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"18:43","end":"19:43","startHours":18.715916974028502,"endHours":19.715916974028502,"planetary_lord":"Moon"},{"name":"Hora 16","start":"19:43","end":"20:43","startHours":19.715916974028502,"endHours":20.715916974028502,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"20:43","end":"21:43","startHours":20.715916974028502,"endHours":21.715916974028502,"planetary_lord":"Venus"},{"name":"Hora 18","start":"21:43","end":"22:43","startHours":21.715916974028502,"endHours":22.715916974028502,"planetary_lord":"Sun"},{"name":"Hora 19","start":"22:43","end":"23:43","startHours":22.715916974028502,"endHours":23.715916974028502,"planetary_lord":"Mars"},{"name":"Hora 20","start":"23:43","end":"00:43","startHours":23.715916974028502,"endHours":24.715916974028502,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"00:43","end":"01:43","startHours":24.715916974028502,"endHours":25.715916974028502,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"01:43","end":"02:43","startHours":25.715916974028502,"endHours":26.715916974028502,"planetary_lord":"Moon"},{"name":"Hora 23","start":"02:43","end":"03:43","startHours":26.715916974028502,"endHours":27.715916974028502,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"03:43","end":"04:43","startHours":27.715916974028502,"endHours":28.715916974028502,"planetary_lord":"Venus"}],"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"North-East","anandadiYoga":{"name":"Dhvaja","quality":"Auspicious"},"tropicalRitu":"Grīṣma (Summer) (tropical)","vedicRitu":"Vasanta (Spring)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":22.01548367925704,"eotMinutes":2.3552680408980873,"ayanamsa":23.5934}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Jyeṣṭha","lunar_month_paksha_full":"Jyeṣṭha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Jyeṣṭha","lunar_month_amanta":"Vaiśākha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Vṛṣabha (Vaikāsi)","ritu":"Grīṣma (Summer)","display_summary":"Jyeṣṭha Kṛṣṇa Caturdaśī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"masika-shivaratri","name":"Māsika Śivarātri","name_sanskrit":"मासिक शिवरात्रि","tradition":"Shaiva","associated_deity":"Śiva","significance":"Monthly Śiva observance.","vrata":true,"detection":{"tithi_number":29,"tithi_paksha":"Kṛṣṇa"},"precedence":6}],"todays_walk":{"walk":{"id":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7.","step_count":5,"url":"/walk/chandra-walk"},"reason":"Somavāra (Monday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Kṛttikā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-3137-12-25","event":"Bhīṣma's Mahaprasthan","chart_id":"bhishma","shared_marker":"same Kṛttikā","url":"/day/-3137-12-25","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"siliguri"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga June 1, 1981 CE · Siliguri, West Bengal · Vidhyamitra","description":"June 1, 1981 CE for Siliguri, West Bengal: Kṛṣṇa Caturdaśī, sūryodaya 04:43, sūryāsta 18:25.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/siliguri/1981-06-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/siliguri/1981-06-01","sa":"https://sa.vidhyamitra.com/city/siliguri/1981-06-01","hi":"https://hi.vidhyamitra.com/city/siliguri/1981-06-01","x-default":"https://vidhyamitra.com/city/siliguri/1981-06-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-03T13:50:23.483Z","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":"2026-06-03T13:50:23.483Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-03T13:50:23.483Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}