{"id":"vidhyamitra:city-day:kanchipuram:1663-03-31:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/kanchipuram/1663-03-31","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"1663-03-31","date_display":"March 31, 1663 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":1663,"month":3,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2328547.770833,"kali_year":4764,"ahargana":1740082.2708,"sun":{"sidereal_longitude":352.0661,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":255.2584,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":263.1924,"elapsed_within_tithi_degrees":11.1924},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1,"moon_longitude":255.2584,"elapsed_within_degrees":1.9251},"yoga":{"number":19,"name":"Parigha","sum_longitude":247.3245},"karana":{"half_tithi_index":43,"name":"Bava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"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":1663,"month":3,"day":31,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2328547.770833,"ahargana":1740082.2708,"kali_year":4764,"ayanamsa_lahiri":19.1488,"grahas":{"sun":{"sidereal_longitude":351.127909,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":251.80530899999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":4},"retrograde":false,"latitude":4.1357},"mars":{"sidereal_longitude":336.61520900000005,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":1},"retrograde":false},"mercury":{"sidereal_longitude":348.454209,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":27,"name":"Revatī","pada":1},"retrograde":true},"jupiter":{"sidereal_longitude":240.44660899999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":false},"venus":{"sidereal_longitude":7.656908999999985,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":242.30100900000002,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":1},"retrograde":true},"rahu":{"sidereal_longitude":142.0674,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":322.0674,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":25,"name":"Pūrva Bhādrapadā","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":1663,"month":3,"day":31,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2328547.770833,"kali_year":4764,"ahargana":1740082.2708,"sun":{"sidereal_longitude":352.0661,"rashi":12,"rashi_name":"Mīna"},"moon":{"sidereal_longitude":255.2584,"rashi":9,"rashi_name":"Dhanu"},"tithi":{"number":22,"name":"Saptamī","paksha":"Kṛṣṇa","full_name":"Kṛṣṇa Saptamī","elongation_degrees":263.1924,"elapsed_within_tithi_degrees":11.1924},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":1,"moon_longitude":255.2584,"elapsed_within_degrees":1.9251},"yoga":{"number":19,"name":"Parigha","sum_longitude":247.3245},"karana":{"half_tithi_index":43,"name":"Bava"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":4.136,"elongation":96.808},"lunar":{"type":"lunar","occurs":false,"moon_latitude":4.136,"opposition_distance":83.192}},"eclipse_window_40days":[]},"city":{"slug":"kanchipuram","name":"Kāñcīpuram","lat":12.8342,"lon":79.7036,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tirtha"},"tier2":{"city":{"slug":"kanchipuram","name":"Kāñcīpuram","lat":12.8342,"lon":79.7036,"tz_offset_hours":5.5,"state":"Tamil Nadu","country":"IN","tier":"tirtha"},"sunriseLocal":"06:09","sunsetLocal":"18:23","solarNoonLocal":"12:16","dayLengthHours":12.238041802701346,"dayLengthDisplay":"12 Hours 14 Mins 17 Secs","nightLengthDisplay":"11 Hours 45 Mins 43 Secs","moonriseLocal":"23:59","moonsetLocal":"11:19","rahuKala":{"name":"Rāhu Kāla","start":"09:12","end":"10:44","startHours":9.204611239592772,"endHours":10.734366464930442,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"13:48","end":"15:19","startHours":13.793876915605779,"endHours":15.323632140943445,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:09","end":"07:40","startHours":6.1451007889174365,"endHours":7.674856014255105,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:00","end":"09:25","startHours":9.000643876214417,"endHours":9.40857860297113,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:39","end":"06:59","startHours":6.655019197363326,"endHours":6.981366978768695,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:51","end":"12:40","startHours":11.856186963511398,"endHours":12.67205641702482,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:31","end":"05:20","startHours":4.5133618818905905,"endHours":5.329231335404013,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:08","end":"06:09","startHours":5.125263972025658,"endHours":6.1451007889174365,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:18","end":"15:07","startHours":14.303795324051666,"endHours":15.11966477756509,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:11","end":"18:35","startHours":18.183142591618783,"endHours":18.58314259161878,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:23","end":"18:54","startHours":18.383142591618782,"endHours":18.89306100006467,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:08","end":"19:53","startHours":18.133142591618782,"endHours":19.883142591618782,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:51","end":"00:40","startHours":23.856186963511398,"endHours":24.67205641702482,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:09","end":"07:40","startHours":6.1451007889174365,"endHours":7.674856014255105,"quality":"inauspicious"},{"name":"Śubha","start":"07:40","end":"09:12","startHours":7.674856014255105,"endHours":9.204611239592772,"quality":"auspicious"},{"name":"Roga","start":"09:12","end":"10:44","startHours":9.204611239592772,"endHours":10.734366464930442,"quality":"inauspicious"},{"name":"Udveg","start":"10:44","end":"12:16","startHours":10.734366464930442,"endHours":12.264121690268109,"quality":"inauspicious"},{"name":"Chala","start":"12:16","end":"13:48","startHours":12.264121690268109,"endHours":13.793876915605779,"quality":"neutral"},{"name":"Labha","start":"13:48","end":"15:19","startHours":13.793876915605779,"endHours":15.323632140943445,"quality":"auspicious"},{"name":"Amṛta","start":"15:19","end":"16:51","startHours":15.323632140943445,"endHours":16.853387366281115,"quality":"auspicious"},{"name":"Kāla","start":"16:51","end":"18:23","startHours":16.853387366281115,"endHours":18.383142591618782,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:23","end":"19:51","startHours":18.383142591618782,"endHours":19.853387366281112,"quality":"auspicious"},{"name":"Amṛta","start":"19:51","end":"21:19","startHours":19.853387366281112,"endHours":21.323632140943445,"quality":"auspicious"},{"name":"Kāla","start":"21:19","end":"22:48","startHours":21.323632140943445,"endHours":22.79387691560578,"quality":"inauspicious"},{"name":"Śubha","start":"22:48","end":"00:16","startHours":22.79387691560578,"endHours":24.26412169026811,"quality":"auspicious"},{"name":"Roga","start":"00:16","end":"01:44","startHours":24.26412169026811,"endHours":25.73436646493044,"quality":"inauspicious"},{"name":"Udveg","start":"01:44","end":"03:12","startHours":25.73436646493044,"endHours":27.204611239592772,"quality":"inauspicious"},{"name":"Chala","start":"03:12","end":"04:40","startHours":27.204611239592772,"endHours":28.674856014255106,"quality":"neutral"},{"name":"Labha","start":"04:40","end":"06:09","startHours":28.674856014255106,"endHours":30.145100788917436,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:09","end":"07:09","startHours":6.1451007889174365,"endHours":7.1451007889174365,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:09","end":"08:09","startHours":7.1451007889174365,"endHours":8.145100788917436,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:09","end":"09:09","startHours":8.145100788917436,"endHours":9.145100788917436,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:09","end":"10:09","startHours":9.145100788917436,"endHours":10.145100788917436,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:09","end":"11:09","startHours":10.145100788917436,"endHours":11.145100788917436,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:09","end":"12:09","startHours":11.145100788917436,"endHours":12.145100788917436,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:09","end":"13:09","startHours":12.145100788917436,"endHours":13.145100788917436,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:09","end":"14:09","startHours":13.145100788917436,"endHours":14.145100788917436,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:09","end":"15:09","startHours":14.145100788917436,"endHours":15.145100788917436,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:09","end":"16:09","startHours":15.145100788917436,"endHours":16.145100788917436,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:09","end":"17:09","startHours":16.145100788917436,"endHours":17.145100788917436,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:09","end":"18:09","startHours":17.145100788917436,"endHours":18.145100788917436,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:09","end":"19:09","startHours":18.145100788917436,"endHours":19.145100788917436,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:09","end":"20:09","startHours":19.145100788917436,"endHours":20.145100788917436,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:09","end":"21:09","startHours":20.145100788917436,"endHours":21.145100788917436,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:09","end":"22:09","startHours":21.145100788917436,"endHours":22.145100788917436,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:09","end":"23:09","startHours":22.145100788917436,"endHours":23.145100788917436,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:09","end":"00:09","startHours":23.145100788917436,"endHours":24.145100788917436,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:09","end":"01:09","startHours":24.145100788917436,"endHours":25.145100788917436,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:09","end":"02:09","startHours":25.145100788917436,"endHours":26.145100788917436,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:09","end":"03:09","startHours":26.145100788917436,"endHours":27.145100788917436,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:09","end":"04:09","startHours":27.145100788917436,"endHours":28.145100788917436,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:09","end":"05:09","startHours":28.145100788917436,"endHours":29.145100788917436,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:09","end":"06:09","startHours":29.145100788917436,"endHours":30.145100788917436,"planetary_lord":"Mercury"}],"taraBala":{"favorable_nakshatras":["Kṛttikā","Rohiṇī","Mṛgaśirā","Ārdrā","Punarvasu","Uttara Phalgunī","Hasta","Citrā","Svātī","Viśākhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā"],"unfavorable_nakshatras":["Aśvinī","Bharaṇī","Puṣya","Aśleṣā","Maghā","Pūrva Phalgunī","Anurādhā","Jyeṣṭhā","Mūla","Pūrva Āṣāḍhā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Kanyā","Tulā","Dhanu","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Siṃha","Vṛścika","Makara","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"East","anandadiYoga":{"name":"Utpāta","quality":"Inauspicious"},"tropicalRitu":"Vasanta (Spring) (tropical)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":4.068919473633958,"eotMinutes":-4.661701416086492,"ayanamsa":19.1488}},"calendars":{"vikram_samvat":1720,"vikram_samvatsara":"Nala","saka_samvat":1585,"saka_samvatsara":"Śobhana","bengali_samvat":1070,"malayalam_era":839,"nanakshahi_year":194,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Kṛṣṇa Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Vaiśākha","lunar_month_amanta":"Caitra","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Mīna (Paṅkuṇi)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Kṛṣṇa Saptamī · Vikram 1720 Nala · Śaka 1585 Śobhana"},"festivals":[],"todays_walk":{"walk":{"id":"shani-walk","name":"Śani Walk","name_sanskrit":"शनि यात्रा","type":"graha","description":"Tapas + endurance + BG 17.14-19.","step_count":7,"url":"/walk/shani-walk"},"reason":"Śanivāra (Saturday) — its presiding graha's walk."},"cosmic_resonances":[]},"validity":{"eternal":false,"location_specific":"kanchipuram"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga March 31, 1663 CE · Kāñcīpuram · Vidhyamitra","description":"March 31, 1663 CE for Kāñcīpuram: Kṛṣṇa Saptamī, sūryodaya 06:09, sūryāsta 18:23.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/kanchipuram/1663-03-31","hreflang_alternates":{"en":"https://vidhyamitra.com/city/kanchipuram/1663-03-31","sa":"https://sa.vidhyamitra.com/city/kanchipuram/1663-03-31","hi":"https://hi.vidhyamitra.com/city/kanchipuram/1663-03-31","x-default":"https://vidhyamitra.com/city/kanchipuram/1663-03-31"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-06-04T18:29:35.893Z","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":"2026-06-04T18:29:35.893Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-06-04T18:29:35.893Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}