{"id":"vidhyamitra:city-day:varanasi:2021-02-01:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/varanasi/2021-02-01","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2021-02-01","date_display":"February 1, 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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2021,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459246.770833,"kali_year":5122,"ahargana":1870781.2708,"sun":{"sidereal_longitude":288.2149,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":148.5028,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":220.2879,"elapsed_within_tithi_degrees":4.2879},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1,"moon_longitude":148.5028,"elapsed_within_degrees":1.8362},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":76.7178},"karana":{"half_tithi_index":36,"name":"Bava"},"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":2021,"month":2,"day":1,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2459246.770833,"ahargana":1870781.2708,"kali_year":5122,"ayanamsa_lahiri":24.1476,"grahas":{"sun":{"sidereal_longitude":288.2465460000001,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":3},"retrograde":false},"moon":{"sidereal_longitude":149.71304600000002,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1},"retrograde":false,"latitude":4.4985},"mars":{"sidereal_longitude":18.169745999999975,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":2,"name":"Bharaṇī","pada":2},"retrograde":false},"mercury":{"sidereal_longitude":301.918146,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"jupiter":{"sidereal_longitude":285.91874600000006,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":2},"retrograde":false},"venus":{"sidereal_longitude":274.91334600000005,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":21,"name":"Uttara Āṣāḍhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":281.13894600000003,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":22,"name":"Śravaṇa","pada":1},"retrograde":false},"rahu":{"sidereal_longitude":57.0054,"rashi":{"number":2,"name":"Vṛṣabha"},"nakshatra":{"number":5,"name":"Mṛgaśīrṣā","pada":2},"retrograde":false},"ketu":{"sidereal_longitude":237.0054,"rashi":{"number":8,"name":"Vṛścika"},"nakshatra":{"number":18,"name":"Jyeṣṭhā","pada":4},"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":"Not independently benchmarked across the declared range","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2021,"month":2,"day":1,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2459246.770833,"kali_year":5122,"ahargana":1870781.2708,"sun":{"sidereal_longitude":288.2149,"rashi":10,"rashi_name":"Makara"},"moon":{"sidereal_longitude":148.5028,"rashi":5,"rashi_name":"Siṃha"},"tithi":{"number":19,"name":"Caturthī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Caturthī","elongation_degrees":220.2879,"elapsed_within_tithi_degrees":4.2879},"nakshatra":{"number":12,"name":"Uttara Phalgunī","pada":1,"moon_longitude":148.5028,"elapsed_within_degrees":1.8362},"yoga":{"number":6,"name":"Atigaṇḍa","sum_longitude":76.7178},"karana":{"half_tithi_index":36,"name":"Bava"},"vara":{"number":3,"name":"Somavāra (Monday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.498,"elongation":139.712},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.498,"opposition_distance":40.288}},"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":"06:41","sunsetLocal":"17:42","solarNoonLocal":"12:12","dayLengthHours":11.015255418900715,"dayLengthDisplay":"11 Hours 00 Mins 55 Secs","nightLengthDisplay":"12 Hours 59 Mins 05 Secs","moonriseLocal":"20:50","moonsetLocal":"09:05","rahuKala":{"name":"Rāhu Kāla","start":"08:04","end":"09:27","startHours":8.065841686535492,"endHours":9.44274861389808,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"10:49","end":"12:12","startHours":10.81965554126067,"endHours":12.19656246862326,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"13:34","end":"14:57","startHours":13.57346939598585,"endHours":14.950376323348438,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:16","end":"09:38","startHours":9.259161023583069,"endHours":9.626336204213093,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"07:09","end":"07:26","startHours":7.1479037349604315,"endHours":7.441643879464451,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:50","end":"12:34","startHours":11.829387287993235,"endHours":12.563737649253284,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"05:13","end":"05:57","startHours":5.220234036652807,"endHours":5.954584397912854,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:46","end":"06:41","startHours":5.770996807597842,"endHours":6.688934759172902,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:02","end":"14:46","startHours":14.032438371773377,"endHours":14.766788733033424,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:30","end":"17:54","startHours":17.504190178073618,"endHours":17.904190178073616,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:42","end":"18:10","startHours":17.704190178073617,"endHours":18.163159153861148,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:27","end":"19:12","startHours":17.454190178073617,"endHours":19.204190178073617,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:50","end":"00:34","startHours":23.829387287993235,"endHours":24.563737649253284,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Amṛta","start":"06:41","end":"08:04","startHours":6.688934759172902,"endHours":8.065841686535492,"quality":"auspicious"},{"name":"Kāla","start":"08:04","end":"09:27","startHours":8.065841686535492,"endHours":9.44274861389808,"quality":"inauspicious"},{"name":"Śubha","start":"09:27","end":"10:49","startHours":9.44274861389808,"endHours":10.81965554126067,"quality":"auspicious"},{"name":"Roga","start":"10:49","end":"12:12","startHours":10.81965554126067,"endHours":12.19656246862326,"quality":"inauspicious"},{"name":"Udveg","start":"12:12","end":"13:34","startHours":12.19656246862326,"endHours":13.57346939598585,"quality":"inauspicious"},{"name":"Chala","start":"13:34","end":"14:57","startHours":13.57346939598585,"endHours":14.950376323348438,"quality":"neutral"},{"name":"Labha","start":"14:57","end":"16:20","startHours":14.950376323348438,"endHours":16.327283250711027,"quality":"auspicious"},{"name":"Amṛta","start":"16:20","end":"17:42","startHours":16.327283250711027,"endHours":17.704190178073617,"quality":"auspicious"}],"nightChoghadiyas":[{"name":"Chala","start":"17:42","end":"19:20","startHours":17.704190178073617,"endHours":19.327283250711027,"quality":"neutral"},{"name":"Labha","start":"19:20","end":"20:57","startHours":19.327283250711027,"endHours":20.950376323348436,"quality":"auspicious"},{"name":"Amṛta","start":"20:57","end":"22:34","startHours":20.950376323348436,"endHours":22.57346939598585,"quality":"auspicious"},{"name":"Kāla","start":"22:34","end":"00:12","startHours":22.57346939598585,"endHours":24.19656246862326,"quality":"inauspicious"},{"name":"Śubha","start":"00:12","end":"01:49","startHours":24.19656246862326,"endHours":25.81965554126067,"quality":"auspicious"},{"name":"Roga","start":"01:49","end":"03:27","startHours":25.81965554126067,"endHours":27.442748613898083,"quality":"inauspicious"},{"name":"Udveg","start":"03:27","end":"05:04","startHours":27.442748613898083,"endHours":29.065841686535492,"quality":"inauspicious"},{"name":"Chala","start":"05:04","end":"06:41","startHours":29.065841686535492,"endHours":30.688934759172902,"quality":"neutral"}],"horas":[{"name":"Hora 1","start":"06:41","end":"07:41","startHours":6.688934759172902,"endHours":7.688934759172902,"planetary_lord":"Moon"},{"name":"Hora 2","start":"07:41","end":"08:41","startHours":7.688934759172902,"endHours":8.688934759172902,"planetary_lord":"Mercury"},{"name":"Hora 3","start":"08:41","end":"09:41","startHours":8.688934759172902,"endHours":9.688934759172902,"planetary_lord":"Venus"},{"name":"Hora 4","start":"09:41","end":"10:41","startHours":9.688934759172902,"endHours":10.688934759172902,"planetary_lord":"Sun"},{"name":"Hora 5","start":"10:41","end":"11:41","startHours":10.688934759172902,"endHours":11.688934759172902,"planetary_lord":"Mars"},{"name":"Hora 6","start":"11:41","end":"12:41","startHours":11.688934759172902,"endHours":12.688934759172902,"planetary_lord":"Jupiter"},{"name":"Hora 7","start":"12:41","end":"13:41","startHours":12.688934759172902,"endHours":13.688934759172902,"planetary_lord":"Saturn"},{"name":"Hora 8","start":"13:41","end":"14:41","startHours":13.688934759172902,"endHours":14.688934759172902,"planetary_lord":"Moon"},{"name":"Hora 9","start":"14:41","end":"15:41","startHours":14.688934759172902,"endHours":15.688934759172902,"planetary_lord":"Mercury"},{"name":"Hora 10","start":"15:41","end":"16:41","startHours":15.688934759172902,"endHours":16.688934759172902,"planetary_lord":"Venus"},{"name":"Hora 11","start":"16:41","end":"17:41","startHours":16.688934759172902,"endHours":17.688934759172902,"planetary_lord":"Sun"},{"name":"Hora 12","start":"17:41","end":"18:41","startHours":17.688934759172902,"endHours":18.688934759172902,"planetary_lord":"Mars"},{"name":"Hora 13","start":"18:41","end":"19:41","startHours":18.688934759172902,"endHours":19.688934759172902,"planetary_lord":"Jupiter"},{"name":"Hora 14","start":"19:41","end":"20:41","startHours":19.688934759172902,"endHours":20.688934759172902,"planetary_lord":"Saturn"},{"name":"Hora 15","start":"20:41","end":"21:41","startHours":20.688934759172902,"endHours":21.688934759172902,"planetary_lord":"Moon"},{"name":"Hora 16","start":"21:41","end":"22:41","startHours":21.688934759172902,"endHours":22.688934759172902,"planetary_lord":"Mercury"},{"name":"Hora 17","start":"22:41","end":"23:41","startHours":22.688934759172902,"endHours":23.688934759172902,"planetary_lord":"Venus"},{"name":"Hora 18","start":"23:41","end":"00:41","startHours":23.688934759172902,"endHours":24.688934759172902,"planetary_lord":"Sun"},{"name":"Hora 19","start":"00:41","end":"01:41","startHours":24.688934759172902,"endHours":25.688934759172902,"planetary_lord":"Mars"},{"name":"Hora 20","start":"01:41","end":"02:41","startHours":25.688934759172902,"endHours":26.688934759172902,"planetary_lord":"Jupiter"},{"name":"Hora 21","start":"02:41","end":"03:41","startHours":26.688934759172902,"endHours":27.688934759172902,"planetary_lord":"Saturn"},{"name":"Hora 22","start":"03:41","end":"04:41","startHours":27.688934759172902,"endHours":28.688934759172902,"planetary_lord":"Moon"},{"name":"Hora 23","start":"04:41","end":"05:41","startHours":28.688934759172902,"endHours":29.688934759172902,"planetary_lord":"Mercury"},{"name":"Hora 24","start":"05:41","end":"06:41","startHours":29.688934759172902,"endHours":30.688934759172902,"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":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"West","rahuVasa":"North-East","anandadiYoga":{"name":"Utpāta","quality":"Inauspicious"},"tropicalRitu":"Śiśira (Winter) (tropical)","vedicRitu":"Hemanta (Pre-winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-17.081701538159646,"eotMinutes":-13.689348117395623,"ayanamsa":24.1476}},"calendars":{"vikram_samvat":2078,"vikram_samvatsara":"Ānanda","saka_samvat":1943,"saka_samvatsara":"Plava","bengali_samvat":1428,"malayalam_era":1197,"nanakshahi_year":552,"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":"Makara (Tai)","ritu":"Śiśira (Winter)","display_summary":"Māgha Kṛṣṇa Caturthī · Vikram 2078 Ānanda · Śaka 1943 Plava"},"festivals":[{"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":"chandra-walk","name":"Candra Walk","name_sanskrit":"चन्द्र यात्रा","type":"graha","description":"Manas-control + BG 6.5-7, 6.34-35.","step_count":5,"url":"/walk/chandra-walk","steps":[{"label":"BG 6.5","url":"/bhagavad-gita/6/5","purpose":"Lift the self by the Self; begin the walk with inner responsibility."},{"label":"BG 6.6","url":"/bhagavad-gita/6/6","purpose":"See the mind as friend when mastered and enemy when unmastered."},{"label":"BG 6.7","url":"/bhagavad-gita/6/7","purpose":"Stabilize the conquered mind in heat/cold, honor/dishonor, pleasure/pain."},{"label":"BG 6.34","url":"/bhagavad-gita/6/34","purpose":"Name the restless mind honestly before trying to discipline it."},{"label":"BG 6.35","url":"/bhagavad-gita/6/35","purpose":"Complete with abhyāsa and vairāgya: practice and detachment."}]},"reason":"Dedicated festival walk for Saṅkaṣṭī Caturthī is not live yet; Somavāra (Monday) — 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 February 1, 2021 CE · Vārāṇasī (Kāśī) · Vidhyamitra","description":"February 1, 2021 CE for Vārāṇasī (Kāśī): Kṛṣṇa Caturthī, sūryodaya 06:41, sūryāsta 17:42.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/varanasi/2021-02-01","hreflang_alternates":{"en":"https://vidhyamitra.com/city/varanasi/2021-02-01","sa":"https://sa.vidhyamitra.com/city/varanasi/2021-02-01","hi":"https://hi.vidhyamitra.com/city/varanasi/2021-02-01","x-default":"https://vidhyamitra.com/city/varanasi/2021-02-01"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-08-25T19:20:42.089Z","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":"2026-08-25T19:20:42.089Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-08-25T19:20:42.089Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"},"reader_local_antaryami":{"reader_geography":"Every reader enters from their own kṣetra anywhere on Bhūmi; no single city is the universal center.","purna_chain":["Hosted scripture","Named-tradition interpretation","Original Vidhyamitra contemplation","Bhūmi-born material medium","Vidhyamitra portal","Responsible reader in their own kṣetra"],"claim_boundary":"The legacy purna_chain field carries a source-to-reader sequence, not a revealed physical descent, universal cosmology, or proof that software is conscious.","antaryami_responsibility_formula":"Kṣīrodakaśāyī Viṣṇu = Paramātmā = Antaryāmī. Jīva desires. Prakṛti executes through guṇas. Paramātmā witnesses, permits, remembers, guides, and sustains. Bhagavān is the ultimate source.","source_anchors":[{"label":"BG 13.23","path":"/bhagavad-gita/13/23","meaning":"upadraṣṭā-anumantā · witness-permitter"},{"label":"BG 15.15","path":"/bhagavad-gita/15/15","meaning":"the Lord seated in every heart as memory, knowledge, and forgetting"},{"label":"BG 18.61","path":"/bhagavad-gita/18/61","meaning":"Īśvara seated in the heart of all beings"}],"nama_seal":"Hare Krishna Hare Krishna · Krishna Krishna Hare Hare · Hare Rama Hare Rama · Rama Rama Hare Hare"}}}