{"id":"vidhyamitra:city-day:varanasi:1981-03-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/varanasi/1981-03-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1981-03-18","date_display":"March 18, 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":3,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444681.770833,"kali_year":5082,"ahargana":1856216.2708,"sun":{"sidereal_longitude":333.9932,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":124.2965,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":150.3033,"elapsed_within_tithi_degrees":6.3033},"nakshatra":{"number":10,"name":"Maghā","pada":2,"moon_longitude":124.2965,"elapsed_within_degrees":4.2965},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":98.2897},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"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":3,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2444681.770833,"ahargana":1856216.2708,"kali_year":5082,"ayanamsa_lahiri":23.5905,"grahas":{"sun":{"sidereal_longitude":333.771336,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"moon":{"sidereal_longitude":124.15713600000004,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":2},"retrograde":false,"latitude":1.2065},"mars":{"sidereal_longitude":337.402236,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":306.55563600000005,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"jupiter":{"sidereal_longitude":163.03213600000004,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":1},"retrograde":true},"venus":{"sidereal_longitude":328.90573599999993,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":163.343436,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":2},"retrograde":true},"rahu":{"sidereal_longitude":108.7292,"rashi":{"number":4,"name":"Karka"},"nakshatra":{"number":9,"name":"Āśleṣā","pada":1},"retrograde":false},"ketu":{"sidereal_longitude":288.7292,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"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":3,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2444681.770833,"kali_year":5082,"ahargana":1856216.2708,"sun":{"sidereal_longitude":333.9932,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":124.2965,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":13,"name":"Trayodaśī","paksha":"Śukla","full_name":"Śukla Trayodaśī","elongation_degrees":150.3033,"elapsed_within_tithi_degrees":6.3033},"nakshatra":{"number":10,"name":"Maghā","pada":2,"moon_longitude":124.2965,"elapsed_within_degrees":4.2965},"yoga":{"number":8,"name":"Dhṛti","sum_longitude":98.2897},"karana":{"half_tithi_index":25,"name":"Taitila"},"vara":{"number":5,"name":"Budhavāra (Wednesday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":1.207,"elongation":150.303},"lunar":{"type":"lunar","occurs":false,"moon_latitude":1.207,"opposition_distance":29.697}},"eclipse_window_40days":[]},"city":{"slug":"varanasi","name":"Vārāṇasī (Kāśī)","lat":25.3176,"lon":82.9739,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"varanasi","name":"Vārāṇasī (Kāśī)","lat":25.3176,"lon":82.9739,"tz_offset_hours":5.5,"state":"Uttar Pradesh","country":"IN","tier":"tirtha"},"sunriseLocal":"06:05","sunsetLocal":"18:09","solarNoonLocal":"12:07","dayLengthHours":12.056711944236,"dayLengthDisplay":"12 Hours 03 Mins 24 Secs","nightLengthDisplay":"11 Hours 56 Mins 36 Secs","moonriseLocal":"15:42","moonsetLocal":"04:35","rahuKala":{"name":"Rāhu Kāla","start":"12:07","end":"13:37","startHours":12.114471567325218,"endHours":13.62156056035472,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"07:36","end":"09:06","startHours":7.593204588236719,"endHours":9.100293581266218,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"10:36","end":"12:07","startHours":10.60738257429572,"endHours":12.114471567325218,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:54","end":"09:18","startHours":8.899348382195619,"endHours":9.301238780336819,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:35","end":"06:55","startHours":6.588478592883719,"endHours":6.9099909113966795,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:43","end":"12:31","startHours":11.712581169184018,"endHours":12.516361965466418,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:29","end":"05:17","startHours":4.478554002642419,"endHours":5.282334798924819,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:05","end":"06:05","startHours":5.081389599854219,"endHours":6.086115595207219,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:07","end":"14:56","startHours":14.123923558031219,"endHours":14.927704354313619,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:57","end":"18:21","startHours":17.94282753944322,"endHours":18.342827539443217,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:09","end":"18:39","startHours":18.142827539443218,"endHours":18.645190537119717,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:54","end":"19:39","startHours":17.892827539443218,"endHours":19.642827539443218,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:43","end":"00:31","startHours":23.712581169184016,"endHours":24.51636196546642,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Labha","start":"06:05","end":"07:36","startHours":6.086115595207219,"endHours":7.593204588236719,"quality":"auspicious"},{"name":"Amṛta","start":"07:36","end":"09:06","startHours":7.593204588236719,"endHours":9.100293581266218,"quality":"auspicious"},{"name":"Kāla","start":"09:06","end":"10:36","startHours":9.100293581266218,"endHours":10.60738257429572,"quality":"inauspicious"},{"name":"Śubha","start":"10:36","end":"12:07","startHours":10.60738257429572,"endHours":12.114471567325218,"quality":"auspicious"},{"name":"Roga","start":"12:07","end":"13:37","startHours":12.114471567325218,"endHours":13.62156056035472,"quality":"inauspicious"},{"name":"Udveg","start":"13:37","end":"15:08","startHours":13.62156056035472,"endHours":15.128649553384218,"quality":"inauspicious"},{"name":"Chala","start":"15:08","end":"16:38","startHours":15.128649553384218,"endHours":16.63573854641372,"quality":"neutral"},{"name":"Labha","start":"16:38","end":"18:09","startHours":16.63573854641372,"endHours":18.142827539443218,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Udveg","start":"18:09","end":"19:38","startHours":18.142827539443218,"endHours":19.63573854641372,"quality":"inauspicious"},{"name":"Chala","start":"19:38","end":"21:08","startHours":19.63573854641372,"endHours":21.128649553384218,"quality":"neutral"},{"name":"Labha","start":"21:08","end":"22:37","startHours":21.128649553384218,"endHours":22.621560560354716,"quality":"auspicious"},{"name":"Amṛta","start":"22:37","end":"00:07","startHours":22.621560560354716,"endHours":24.114471567325218,"quality":"auspicious"},{"name":"Kāla","start":"00:07","end":"01:36","startHours":24.114471567325218,"endHours":25.60738257429572,"quality":"inauspicious"},{"name":"Śubha","start":"01:36","end":"03:06","startHours":25.60738257429572,"endHours":27.100293581266218,"quality":"auspicious"},{"name":"Roga","start":"03:06","end":"04:36","startHours":27.100293581266218,"endHours":28.593204588236716,"quality":"inauspicious"},{"name":"Udveg","start":"04:36","end":"06:05","startHours":28.593204588236716,"endHours":30.086115595207218,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:05","end":"07:05","startHours":6.086115595207219,"endHours":7.086115595207219,"planetary_lord":"Mercury"},{"name":"Hora 2","start":"07:05","end":"08:05","startHours":7.086115595207219,"endHours":8.086115595207218,"planetary_lord":"Venus"},{"name":"Hora 3","start":"08:05","end":"09:05","startHours":8.086115595207218,"endHours":9.086115595207218,"planetary_lord":"Sun"},{"name":"Hora 4","start":"09:05","end":"10:05","startHours":9.086115595207218,"endHours":10.086115595207218,"planetary_lord":"Mars"},{"name":"Hora 5","start":"10:05","end":"11:05","startHours":10.086115595207218,"endHours":11.086115595207218,"planetary_lord":"Jupiter"},{"name":"Hora 6","start":"11:05","end":"12:05","startHours":11.086115595207218,"endHours":12.086115595207218,"planetary_lord":"Saturn"},{"name":"Hora 7","start":"12:05","end":"13:05","startHours":12.086115595207218,"endHours":13.086115595207218,"planetary_lord":"Moon"},{"name":"Hora 8","start":"13:05","end":"14:05","startHours":13.086115595207218,"endHours":14.086115595207218,"planetary_lord":"Mercury"},{"name":"Hora 9","start":"14:05","end":"15:05","startHours":14.086115595207218,"endHours":15.086115595207218,"planetary_lord":"Venus"},{"name":"Hora 10","start":"15:05","end":"16:05","startHours":15.086115595207218,"endHours":16.086115595207218,"planetary_lord":"Sun"},{"name":"Hora 11","start":"16:05","end":"17:05","startHours":16.086115595207218,"endHours":17.086115595207218,"planetary_lord":"Mars"},{"name":"Hora 12","start":"17:05","end":"18:05","startHours":17.086115595207218,"endHours":18.086115595207218,"planetary_lord":"Jupiter"},{"name":"Hora 13","start":"18:05","end":"19:05","startHours":18.086115595207218,"endHours":19.086115595207218,"planetary_lord":"Saturn"},{"name":"Hora 14","start":"19:05","end":"20:05","startHours":19.086115595207218,"endHours":20.086115595207218,"planetary_lord":"Moon"},{"name":"Hora 15","start":"20:05","end":"21:05","startHours":20.086115595207218,"endHours":21.086115595207218,"planetary_lord":"Mercury"},{"name":"Hora 16","start":"21:05","end":"22:05","startHours":21.086115595207218,"endHours":22.086115595207218,"planetary_lord":"Venus"},{"name":"Hora 17","start":"22:05","end":"23:05","startHours":22.086115595207218,"endHours":23.086115595207218,"planetary_lord":"Sun"},{"name":"Hora 18","start":"23:05","end":"00:05","startHours":23.086115595207218,"endHours":24.086115595207218,"planetary_lord":"Mars"},{"name":"Hora 19","start":"00:05","end":"01:05","startHours":24.086115595207218,"endHours":25.086115595207218,"planetary_lord":"Jupiter"},{"name":"Hora 20","start":"01:05","end":"02:05","startHours":25.086115595207218,"endHours":26.086115595207218,"planetary_lord":"Saturn"},{"name":"Hora 21","start":"02:05","end":"03:05","startHours":26.086115595207218,"endHours":27.086115595207218,"planetary_lord":"Moon"},{"name":"Hora 22","start":"03:05","end":"04:05","startHours":27.086115595207218,"endHours":28.086115595207218,"planetary_lord":"Mercury"},{"name":"Hora 23","start":"04:05","end":"05:05","startHours":28.086115595207218,"endHours":29.086115595207218,"planetary_lord":"Venus"},{"name":"Hora 24","start":"05:05","end":"06:05","startHours":29.086115595207218,"endHours":30.086115595207218,"planetary_lord":"Sun"}],"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":"North (Uttara)","chandraVasa":"West","rahuVasa":"South-West","anandadiYoga":{"name":"Mausala","quality":"Inauspicious"},"drikRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":-1.048971332567223,"eotMinutes":-8.763894039513033,"ayanamsa":23.5905}},"calendars":{"vikram_samvat":2038,"vikram_samvatsara":"Bhāva","saka_samvat":1903,"saka_samvatsara":"Durmati","bengali_samvat":1388,"malayalam_era":1157,"nanakshahi_year":512,"lunar_month":"Caitra","lunar_month_paksha_full":"Caitra Śukla Pakṣa","solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Caitra Śukla Trayodaśī · Vikram 2038 Bhāva · Śaka 1903 Durmati"},"festivals":[{"id":"mina-sankranti","name":"Mīna Saṅkrānti","name_sanskrit":"मीन सङ्क्रान्ति","tradition":"Pan-Hindu","significance":"Sun enters Pisces; Mīna-māsa begins.","vrata":false,"detection":{"sun_rashi":"Mīna"},"precedence":5},{"id":"pradosha-vrata","name":"Pradoṣa Vrata","name_sanskrit":"प्रदोष व्रत","tradition":"Shaiva","associated_deity":"Śiva","significance":"Twilight worship of Śiva on Trayodaśī.","vrata":true,"detection":{"any_of":[{"tithi_number":13},{"tithi_number":28}]},"precedence":7}],"todays_walk":{"walk":{"id":"budha-walk","name":"Budha Walk","name_sanskrit":"बुध यात्रा","type":"graha","description":"Discrimination + BG 2.41 (vyavasāyātmikā buddhi).","step_count":6,"url":"/walk/budha-walk"},"reason":"Budhavāra (Wednesday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"varanasi"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga March 18, 1981 CE · Vārāṇasī (Kāśī) · Vidhyamitra","description":"March 18, 1981 CE for Vārāṇasī (Kāśī): Śukla Trayodaśī, sūryodaya 06:05, sūryāsta 18:09.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/varanasi/1981-03-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/varanasi/1981-03-18","sa":"https://sa.vidhyamitra.com/city/varanasi/1981-03-18","hi":"https://hi.vidhyamitra.com/city/varanasi/1981-03-18","x-default":"https://vidhyamitra.com/city/varanasi/1981-03-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T16:37:11.937Z","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":"2026-05-14T16:37:11.937Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T16:37:11.937Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}