{"id":"vidhyamitra:city-day:thane:2026-04-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/thane/2026-04-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2026-04-18","date_display":"April 18, 2026 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":2026,"month":4,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461148.770833,"kali_year":5128,"ahargana":1872683.2708,"sun":{"sidereal_longitude":3.8709,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":9.8631,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":5.9922,"elapsed_within_tithi_degrees":5.9922},"nakshatra":{"number":1,"name":"Aśvinī","pada":3,"moon_longitude":9.8631,"elapsed_within_degrees":9.8631},"yoga":{"number":2,"name":"Prīti","sum_longitude":13.734},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"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":2026,"month":4,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2461148.770833,"ahargana":1872683.2708,"kali_year":5128,"ayanamsa_lahiri":24.2203,"grahas":{"sun":{"sidereal_longitude":3.812176000000022,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":2},"retrograde":false},"moon":{"sidereal_longitude":11.452376000000015,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":1,"name":"Aśvinī","pada":4},"retrograde":false,"latitude":3.6223},"mars":{"sidereal_longitude":341.758376,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":339.544676,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":82.895376,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":7,"name":"Punarvasu","pada":1},"retrograde":false},"venus":{"sidereal_longitude":27.977976000000012,"rashi":{"number":1,"name":"Meṣa"},"nakshatra":{"number":3,"name":"Kṛttikā","pada":1},"retrograde":false},"saturn":{"sidereal_longitude":343.497576,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":4},"retrograde":false},"rahu":{"sidereal_longitude":316.2283,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":24,"name":"Śatabhiṣā","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":136.2283,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":11,"name":"Pūrva Phalgunī","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":2026,"month":4,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2461148.770833,"kali_year":5128,"ahargana":1872683.2708,"sun":{"sidereal_longitude":3.8709,"rashi":1,"rashi_name":"Meṣa"},"moon":{"sidereal_longitude":9.8631,"rashi":1,"rashi_name":"Meṣa"},"tithi":{"number":1,"name":"Pratipada","paksha":"Śukla","full_name":"Śukla Pratipada","elongation_degrees":5.9922,"elapsed_within_tithi_degrees":5.9922},"nakshatra":{"number":1,"name":"Aśvinī","pada":3,"moon_longitude":9.8631,"elapsed_within_degrees":9.8631},"yoga":{"number":2,"name":"Prīti","sum_longitude":13.734},"karana":{"half_tithi_index":0,"name":"Kiṃstughna"},"vara":{"number":1,"name":"Śanivāra (Saturday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":3.622,"elongation":5.992},"lunar":{"type":"lunar","occurs":false,"moon_latitude":3.622,"opposition_distance":174.008}},"eclipse_window_40days":[]},"city":{"slug":"thane","name":"Thane, Maharashtra","lat":19.2183,"lon":72.9781,"tz_offset_hours":5.5,"state":"Maharashtra","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"thane","name":"Thane, Maharashtra","lat":19.2183,"lon":72.9781,"tz_offset_hours":5.5,"state":"Maharashtra","country":"IN","tier":"tier-1"},"sunriseLocal":"06:19","sunsetLocal":"18:56","solarNoonLocal":"12:38","dayLengthHours":12.627152310217468,"dayLengthDisplay":"12 Hours 37 Mins 38 Secs","nightLengthDisplay":"11 Hours 22 Mins 22 Secs","moonriseLocal":"06:47","moonsetLocal":"19:30","rahuKala":{"name":"Rāhu Kāla","start":"09:28","end":"11:03","startHours":9.46957387418091,"endHours":11.047967912958093,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:12","end":"15:47","startHours":14.20475599051246,"endHours":15.783150029289644,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"06:19","end":"07:53","startHours":6.312785796626543,"endHours":7.891179835403727,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"09:16","end":"09:41","startHours":9.259121335677285,"endHours":9.680026412684535,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:50","end":"07:11","startHours":6.838917142885604,"endHours":7.175641204491403,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"12:12","end":"13:03","startHours":12.205456874728027,"endHours":13.047267028742526,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:38","end":"05:28","startHours":4.629165488597548,"endHours":5.4709756426120455,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:16","end":"06:19","startHours":5.260523104108421,"endHours":6.312785796626543,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"14:44","end":"15:34","startHours":14.730887336771524,"endHours":15.572697490786021,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"18:44","end":"19:08","startHours":18.73993810684401,"endHours":19.13993810684401,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"18:56","end":"19:28","startHours":18.93993810684401,"endHours":19.46606945310307,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"18:41","end":"20:26","startHours":18.68993810684401,"endHours":20.43993810684401,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"00:12","end":"01:03","startHours":24.20545687472803,"endHours":25.047267028742525,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Kāla","start":"06:19","end":"07:53","startHours":6.312785796626543,"endHours":7.891179835403727,"quality":"inauspicious"},{"name":"Śubha","start":"07:53","end":"09:28","startHours":7.891179835403727,"endHours":9.46957387418091,"quality":"auspicious"},{"name":"Roga","start":"09:28","end":"11:03","startHours":9.46957387418091,"endHours":11.047967912958093,"quality":"inauspicious"},{"name":"Udveg","start":"11:03","end":"12:38","startHours":11.047967912958093,"endHours":12.626361951735277,"quality":"inauspicious"},{"name":"Chala","start":"12:38","end":"14:12","startHours":12.626361951735277,"endHours":14.20475599051246,"quality":"neutral"},{"name":"Labha","start":"14:12","end":"15:47","startHours":14.20475599051246,"endHours":15.783150029289644,"quality":"auspicious"},{"name":"Amṛta","start":"15:47","end":"17:22","startHours":15.783150029289644,"endHours":17.361544068066827,"quality":"auspicious"},{"name":"Kāla","start":"17:22","end":"18:56","startHours":17.361544068066827,"endHours":18.93993810684401,"quality":"inauspicious"}],"nightChoghadiyas":[{"name":"Labha","start":"18:56","end":"20:22","startHours":18.93993810684401,"endHours":20.361544068066827,"quality":"auspicious"},{"name":"Amṛta","start":"20:22","end":"21:47","startHours":20.361544068066827,"endHours":21.783150029289644,"quality":"auspicious"},{"name":"Kāla","start":"21:47","end":"23:12","startHours":21.783150029289644,"endHours":23.20475599051246,"quality":"inauspicious"},{"name":"Śubha","start":"23:12","end":"00:38","startHours":23.20475599051246,"endHours":24.626361951735277,"quality":"auspicious"},{"name":"Roga","start":"00:38","end":"02:03","startHours":24.626361951735277,"endHours":26.047967912958093,"quality":"inauspicious"},{"name":"Udveg","start":"02:03","end":"03:28","startHours":26.047967912958093,"endHours":27.46957387418091,"quality":"inauspicious"},{"name":"Chala","start":"03:28","end":"04:53","startHours":27.46957387418091,"endHours":28.891179835403726,"quality":"neutral"},{"name":"Labha","start":"04:53","end":"06:19","startHours":28.891179835403726,"endHours":30.312785796626542,"quality":"auspicious"}],"horas":[{"name":"Hora 1","start":"06:19","end":"07:19","startHours":6.312785796626543,"endHours":7.312785796626543,"planetary_lord":"Saturn"},{"name":"Hora 2","start":"07:19","end":"08:19","startHours":7.312785796626543,"endHours":8.312785796626542,"planetary_lord":"Moon"},{"name":"Hora 3","start":"08:19","end":"09:19","startHours":8.312785796626542,"endHours":9.312785796626542,"planetary_lord":"Mercury"},{"name":"Hora 4","start":"09:19","end":"10:19","startHours":9.312785796626542,"endHours":10.312785796626542,"planetary_lord":"Venus"},{"name":"Hora 5","start":"10:19","end":"11:19","startHours":10.312785796626542,"endHours":11.312785796626542,"planetary_lord":"Sun"},{"name":"Hora 6","start":"11:19","end":"12:19","startHours":11.312785796626542,"endHours":12.312785796626542,"planetary_lord":"Mars"},{"name":"Hora 7","start":"12:19","end":"13:19","startHours":12.312785796626542,"endHours":13.312785796626542,"planetary_lord":"Jupiter"},{"name":"Hora 8","start":"13:19","end":"14:19","startHours":13.312785796626542,"endHours":14.312785796626542,"planetary_lord":"Saturn"},{"name":"Hora 9","start":"14:19","end":"15:19","startHours":14.312785796626542,"endHours":15.312785796626542,"planetary_lord":"Moon"},{"name":"Hora 10","start":"15:19","end":"16:19","startHours":15.312785796626542,"endHours":16.312785796626542,"planetary_lord":"Mercury"},{"name":"Hora 11","start":"16:19","end":"17:19","startHours":16.312785796626542,"endHours":17.312785796626542,"planetary_lord":"Venus"},{"name":"Hora 12","start":"17:19","end":"18:19","startHours":17.312785796626542,"endHours":18.312785796626542,"planetary_lord":"Sun"},{"name":"Hora 13","start":"18:19","end":"19:19","startHours":18.312785796626542,"endHours":19.312785796626542,"planetary_lord":"Mars"},{"name":"Hora 14","start":"19:19","end":"20:19","startHours":19.312785796626542,"endHours":20.312785796626542,"planetary_lord":"Jupiter"},{"name":"Hora 15","start":"20:19","end":"21:19","startHours":20.312785796626542,"endHours":21.312785796626542,"planetary_lord":"Saturn"},{"name":"Hora 16","start":"21:19","end":"22:19","startHours":21.312785796626542,"endHours":22.312785796626542,"planetary_lord":"Moon"},{"name":"Hora 17","start":"22:19","end":"23:19","startHours":22.312785796626542,"endHours":23.312785796626542,"planetary_lord":"Mercury"},{"name":"Hora 18","start":"23:19","end":"00:19","startHours":23.312785796626542,"endHours":24.312785796626542,"planetary_lord":"Venus"},{"name":"Hora 19","start":"00:19","end":"01:19","startHours":24.312785796626542,"endHours":25.312785796626542,"planetary_lord":"Sun"},{"name":"Hora 20","start":"01:19","end":"02:19","startHours":25.312785796626542,"endHours":26.312785796626542,"planetary_lord":"Mars"},{"name":"Hora 21","start":"02:19","end":"03:19","startHours":26.312785796626542,"endHours":27.312785796626542,"planetary_lord":"Jupiter"},{"name":"Hora 22","start":"03:19","end":"04:19","startHours":27.312785796626542,"endHours":28.312785796626542,"planetary_lord":"Saturn"},{"name":"Hora 23","start":"04:19","end":"05:19","startHours":28.312785796626542,"endHours":29.312785796626542,"planetary_lord":"Moon"},{"name":"Hora 24","start":"05:19","end":"06:19","startHours":29.312785796626542,"endHours":30.312785796626542,"planetary_lord":"Mercury"}],"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":["Meṣa","Mithuna","Kanyā","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Vṛṣabha","Karka","Siṃha","Vṛścika","Dhanu","Mīna"]},"dishaShool":"East (Pūrva)","chandraVasa":"East","rahuVasa":"East","anandadiYoga":{"name":"Rākṣasa","quality":"Inauspicious"},"drikRitu":"Vasanta (Spring)","vedicRitu":"Vasanta (Spring)","drikAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization (Drikpanchang-parity)","declination":10.77327411928693,"eotMinutes":0.5058828958834352,"ayanamsa":24.2203}},"calendars":{"vikram_samvat":2083,"vikram_samvatsara":"Siddhārthī","saka_samvat":1948,"saka_samvatsara":"Parābhava","bengali_samvat":1433,"malayalam_era":1202,"nanakshahi_year":557,"lunar_month":"Vaiśākha","lunar_month_paksha_full":"Vaiśākha Śukla Pakṣa","solar_month":"Mēsha (Cittirai / Vaiśākhī)","ritu":"Vasanta (Spring)","display_summary":"Vaiśākha Śukla Pratipada · Vikram 2083 Siddhārthī · Śaka 1948 Parābhava"},"festivals":[{"id":"mesha-sankranti","name":"Meṣa Saṅkrānti (Vaiśākhī / Vishu / Pohelā Boishākh / Bihu)","name_sanskrit":"मेष सङ्क्रान्ति","tradition":"Pan-Hindu","associated_deity":"Sūrya Bhagavān","significance":"Sun enters Aries; solar new year. Regional: Vaiśākhī (Punjab) · Vishu (Kerala) · Pohelā Boishākh (Bengal) · Bihu (Assam) · Tamil Puthāṇḍu.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":1},{"id":"baisakhi","name":"Baisakhi (Vaiśākhī)","name_sanskrit":"वैशाखी","tradition":"Regional","associated_deity":"Sūrya + Khalsa Pantha (Sikh)","significance":"Punjab New Year + Sikh Khalsa founding day.","vrata":false,"detection":{"sun_rashi":"Meṣa"},"precedence":2}],"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":[{"historical_date":"-3101-02-18","event":"Kali Yuga Epoch","chart_id":"kali-yuga-epoch","shared_marker":"same Aśvinī","url":"/day/-3101-02-18","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"thane"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga April 18, 2026 CE · Thane, Maharashtra · Vidhyamitra","description":"April 18, 2026 CE for Thane, Maharashtra: Śukla Pratipada, sūryodaya 06:19, sūryāsta 18:56.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/thane/2026-04-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/thane/2026-04-18","sa":"https://sa.vidhyamitra.com/city/thane/2026-04-18","hi":"https://hi.vidhyamitra.com/city/thane/2026-04-18","x-default":"https://vidhyamitra.com/city/thane/2026-04-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-14T21:38:54.239Z","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":"2026-05-14T21:38:54.240Z","verification":{"type":"community-validated","markers":["matches Drikpanchang ±1 minute on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-14T21:38:54.240Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}