{"id":"vidhyamitra:city-day:howrah:1963-01-13:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/howrah/1963-01-13","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1963-01-13","date_display":"January 13, 1963 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":1963,"month":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438042.770833,"kali_year":5064,"ahargana":1849577.2708,"sun":{"sidereal_longitude":268.7507,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":127.4379,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":218.6873,"elapsed_within_tithi_degrees":2.6873},"nakshatra":{"number":10,"name":"Maghā","pada":3,"moon_longitude":127.4379,"elapsed_within_degrees":7.4379},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":36.1886},"karana":{"half_tithi_index":36,"name":"Bava"},"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":1963,"month":1,"day":13,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2438042.770833,"ahargana":1849577.2708,"kali_year":5064,"ayanamsa_lahiri":23.3366,"grahas":{"sun":{"sidereal_longitude":268.792695,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":125.59279500000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false,"latitude":2.0373},"mars":{"sidereal_longitude":119.84249499999999,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Aśleṣā","pada":4},"retrograde":false},"mercury":{"sidereal_longitude":283.706995,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":true},"jupiter":{"sidereal_longitude":318.65559499999995,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":4},"retrograde":false},"venus":{"sidereal_longitude":222.79979500000002,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":17,"name":"Anurādhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":288.6076949999999,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"rahu":{"sidereal_longitude":100.4954,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":8,"name":"Puṣya","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":280.4954,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","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":1963,"month":1,"day":13,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2438042.770833,"kali_year":5064,"ahargana":1849577.2708,"sun":{"sidereal_longitude":268.7507,"rashi":9,"rashi_name":"Dhanu"},"moon":{"sidereal_longitude":127.4379,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":218.6873,"elapsed_within_tithi_degrees":2.6873},"nakshatra":{"number":10,"name":"Maghā","pada":3,"moon_longitude":127.4379,"elapsed_within_degrees":7.4379},"yoga":{"number":3,"name":"Āyuṣmān","sum_longitude":36.1886},"karana":{"half_tithi_index":36,"name":"Bava"},"vara":{"number":2,"name":"Ravivāra (Sunday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":2.037,"elongation":141.313},"lunar":{"type":"lunar","occurs":false,"moon_latitude":2.037,"opposition_distance":38.687}},"eclipse_window_40days":[{"offset_days":-3,"type":"lunar","occurs":true,"moon_latitude":-0.956,"opposition_distance":2.706}]},"city":{"slug":"howrah","name":"Howrah, West Bengal","lat":22.5958,"lon":88.2636,"tz_offset_hours":5.5,"state":"West Bengal","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"howrah","name":"Howrah, West Bengal","lat":22.5958,"lon":88.2636,"tz_offset_hours":5.5,"state":"West Bengal","country":"IN","tier":"tier-1"},"sunriseLocal":"06:20","sunsetLocal":"17:12","solarNoonLocal":"11:46","dayLengthHours":10.865219794076694,"dayLengthDisplay":"10 Hours 51 Mins 55 Secs","nightLengthDisplay":"13 Hours 08 Mins 05 Secs","moonriseLocal":"19:50","moonsetLocal":"08:35","rahuKala":{"name":"Rāhu Kāla","start":"15:50","end":"17:12","startHours":15.834149614301655,"endHours":17.19230208856124,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"11:46","end":"13:07","startHours":11.759692191522895,"endHours":13.117844665782481,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"14:29","end":"15:50","startHours":14.475997140042068,"endHours":15.834149614301655,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:52","end":"09:13","startHours":8.862300246435776,"endHours":9.224474239571666,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:47","end":"07:04","startHours":6.779799785904411,"endHours":7.069538980413123,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:24","end":"12:07","startHours":11.397518198387004,"endHours":12.121866184658785,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:53","end":"05:36","startHours":4.878386321940989,"endHours":5.602734308212769,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:25","end":"06:20","startHours":5.421647311644824,"endHours":6.327082294484549,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:34","end":"14:18","startHours":13.570562157202344,"endHours":14.294910143474123,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:00","end":"17:24","startHours":16.992302088561242,"endHours":17.39230208856124,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:12","end":"17:39","startHours":17.19230208856124,"endHours":17.645019579981103,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"16:57","end":"18:42","startHours":16.94230208856124,"endHours":18.69230208856124,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:24","end":"00:07","startHours":23.397518198387004,"endHours":24.121866184658785,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Udveg","start":"06:20","end":"07:41","startHours":6.327082294484549,"endHours":7.685234768744135,"quality":"inauspicious"},{"name":"Chala","start":"07:41","end":"09:03","startHours":7.685234768744135,"endHours":9.043387243003721,"quality":"neutral"},{"name":"Labha","start":"09:03","end":"10:24","startHours":9.043387243003721,"endHours":10.401539717263308,"quality":"auspicious"},{"name":"Amṛta","start":"10:24","end":"11:46","startHours":10.401539717263308,"endHours":11.759692191522895,"quality":"auspicious"},{"name":"Kāla","start":"11:46","end":"13:07","startHours":11.759692191522895,"endHours":13.117844665782481,"quality":"inauspicious"},{"name":"Śubha","start":"13:07","end":"14:29","startHours":13.117844665782481,"endHours":14.475997140042068,"quality":"auspicious"},{"name":"Roga","start":"14:29","end":"15:50","startHours":14.475997140042068,"endHours":15.834149614301655,"quality":"inauspicious"},{"name":"Udveg","start":"15:50","end":"17:12","startHours":15.834149614301655,"endHours":17.19230208856124,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Śubha","start":"17:12","end":"18:50","startHours":17.19230208856124,"endHours":18.834149614301655,"quality":"auspicious"},{"name":"Roga","start":"18:50","end":"20:29","startHours":18.834149614301655,"endHours":20.475997140042068,"quality":"inauspicious"},{"name":"Udveg","start":"20:29","end":"22:07","startHours":20.475997140042068,"endHours":22.11784466578248,"quality":"inauspicious"},{"name":"Chala","start":"22:07","end":"23:46","startHours":22.11784466578248,"endHours":23.759692191522895,"quality":"neutral"},{"name":"Labha","start":"23:46","end":"01:24","startHours":23.759692191522895,"endHours":25.401539717263308,"quality":"auspicious"},{"name":"Amṛta","start":"01:24","end":"03:03","startHours":25.401539717263308,"endHours":27.04338724300372,"quality":"auspicious"},{"name":"Kāla","start":"03:03","end":"04:41","startHours":27.04338724300372,"endHours":28.685234768744134,"quality":"inauspicious"},{"name":"Śubha","start":"04:41","end":"06:20","startHours":28.685234768744134,"endHours":30.327082294484548,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:20","end":"07:20","startHours":6.327082294484549,"endHours":7.327082294484549,"planetary_lord":"Sun"},{"name":"Hora 2","start":"07:20","end":"08:20","startHours":7.327082294484549,"endHours":8.327082294484548,"planetary_lord":"Mars"},{"name":"Hora 3","start":"08:20","end":"09:20","startHours":8.327082294484548,"endHours":9.327082294484548,"planetary_lord":"Jupiter"},{"name":"Hora 4","start":"09:20","end":"10:20","startHours":9.327082294484548,"endHours":10.327082294484548,"planetary_lord":"Saturn"},{"name":"Hora 5","start":"10:20","end":"11:20","startHours":10.327082294484548,"endHours":11.327082294484548,"planetary_lord":"Moon"},{"name":"Hora 6","start":"11:20","end":"12:20","startHours":11.327082294484548,"endHours":12.327082294484548,"planetary_lord":"Mercury"},{"name":"Hora 7","start":"12:20","end":"13:20","startHours":12.327082294484548,"endHours":13.327082294484548,"planetary_lord":"Venus"},{"name":"Hora 8","start":"13:20","end":"14:20","startHours":13.327082294484548,"endHours":14.327082294484548,"planetary_lord":"Sun"},{"name":"Hora 9","start":"14:20","end":"15:20","startHours":14.327082294484548,"endHours":15.327082294484548,"planetary_lord":"Mars"},{"name":"Hora 10","start":"15:20","end":"16:20","startHours":15.327082294484548,"endHours":16.327082294484548,"planetary_lord":"Jupiter"},{"name":"Hora 11","start":"16:20","end":"17:20","startHours":16.327082294484548,"endHours":17.327082294484548,"planetary_lord":"Saturn"},{"name":"Hora 12","start":"17:20","end":"18:20","startHours":17.327082294484548,"endHours":18.327082294484548,"planetary_lord":"Moon"},{"name":"Hora 13","start":"18:20","end":"19:20","startHours":18.327082294484548,"endHours":19.327082294484548,"planetary_lord":"Mercury"},{"name":"Hora 14","start":"19:20","end":"20:20","startHours":19.327082294484548,"endHours":20.327082294484548,"planetary_lord":"Venus"},{"name":"Hora 15","start":"20:20","end":"21:20","startHours":20.327082294484548,"endHours":21.327082294484548,"planetary_lord":"Sun"},{"name":"Hora 16","start":"21:20","end":"22:20","startHours":21.327082294484548,"endHours":22.327082294484548,"planetary_lord":"Mars"},{"name":"Hora 17","start":"22:20","end":"23:20","startHours":22.327082294484548,"endHours":23.327082294484548,"planetary_lord":"Jupiter"},{"name":"Hora 18","start":"23:20","end":"00:20","startHours":23.327082294484548,"endHours":24.327082294484548,"planetary_lord":"Saturn"},{"name":"Hora 19","start":"00:20","end":"01:20","startHours":24.327082294484548,"endHours":25.327082294484548,"planetary_lord":"Moon"},{"name":"Hora 20","start":"01:20","end":"02:20","startHours":25.327082294484548,"endHours":26.327082294484548,"planetary_lord":"Mercury"},{"name":"Hora 21","start":"02:20","end":"03:20","startHours":26.327082294484548,"endHours":27.327082294484548,"planetary_lord":"Venus"},{"name":"Hora 22","start":"03:20","end":"04:20","startHours":27.327082294484548,"endHours":28.327082294484548,"planetary_lord":"Sun"},{"name":"Hora 23","start":"04:20","end":"05:20","startHours":28.327082294484548,"endHours":29.327082294484548,"planetary_lord":"Mars"},{"name":"Hora 24","start":"05:20","end":"06:20","startHours":29.327082294484548,"endHours":30.327082294484548,"planetary_lord":"Jupiter"}],"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":"West (Paścim)","chandraVasa":"West","rahuVasa":"North-East","anandadiYoga":{"name":"Mudgara","quality":"Inauspicious"},"tropicalRitu":"Hemanta (Pre-winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Dakṣiṇāyana","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-21.619067684003227,"eotMinutes":-8.635931491373626,"ayanamsa":23.3366}},"calendars":{"vikram_samvat":2020,"vikram_samvatsara":"Nala","saka_samvat":1885,"saka_samvatsara":"Śobhana","bengali_samvat":1370,"malayalam_era":1139,"nanakshahi_year":494,"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":"Dhanus (Mārgaḻi)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Caturthī · Vikram 2020 Nala · Śaka 1885 Śobhana"},"festivals":[{"id":"lohri","name":"Lohri","name_sanskrit":"लोहड़ी","tradition":"Regional","significance":"Punjab harvest festival; eve of Makara Saṅkrānti.","vrata":false,"detection":{"sun_rashi_eve_of_ingress":"Makara"},"precedence":4},{"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":"howrah"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga January 13, 1963 CE · Howrah, West Bengal · Vidhyamitra","description":"January 13, 1963 CE for Howrah, West Bengal: Kṛṣṇa Caturthī, sūryodaya 06:20, sūryāsta 17:12.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/howrah/1963-01-13","hreflang_alternates":{"en":"https://vidhyamitra.com/city/howrah/1963-01-13","sa":"https://sa.vidhyamitra.com/city/howrah/1963-01-13","hi":"https://hi.vidhyamitra.com/city/howrah/1963-01-13","x-default":"https://vidhyamitra.com/city/howrah/1963-01-13"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T18:45:18.663Z","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":"2026-05-31T18:45:18.663Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T18:45:18.663Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}