Zero Shadow Day: Zero Shadow Day is a remarkable celestial event that transpires twice a year within locations ranging from +23.5 to -23.5 degrees latitude. During this occurrence, the sun reaches its peak elevation in the sky, causing objects and individuals to cast no shadows.
Bengaluru Gears Up For it’s second ‘Zero Shadow Day’ for this year 2023.
Zero Shadow Day
Today on 18th August’23 at 12.24pm, Bengaluru will witness a brief period without shadows because the sun will be positioned directly overhead.
Bengaluru, often hailed as the Silicon Valley of India due to its vibrant IT sector, is gearing up to experience the glorious astronomical phenomenon ‘Zero Shadow Day’ for the second time this year.
This year, the first Zero Shadow Day, a celestial event where vertical objects don’t cast shadows, occurred in Bengaluru, India on April 25, 2023. It occurs between the Tropics of Cancer and Capricorn.
It occurs when the sun’s position is directly overhead, casting no shadow on the earth’s surface.
At 12:24 pm today (August 18), city residents will have the opportunity to observe how shadows disappear during this remarkable celestial phenomenon.
What is Zero Shadow Day?
Zero Shadow Day, also known as No Shadow Day, is an astronomical phenomenon that occurs in specific regions on Earth where the Sun is positioned directly overhead at solar noon. Zero Shadow Day phenomenon happens due to the Earth’s axial tilt of approximately 23.5 degrees and its orbit around the Sun.
Between the Tropic of Cancer (about 23.5 degrees north of the equator) and the Tropic of Capricorn (about 23.5 degrees south of the equator), there are instances when the Sun is exactly overhead at local solar noon. This means that vertical objects, like poles or sticks, cast little to no shadow, as the Sun’s rays come down almost vertically.
When does Zero Shadow Day happen?
According to the Astronomical Society of India (ASI), Zero Shadow Day typically occurs twice a year in these tropical regions, around the times when the Sun crosses the zenith point. These dates can vary depending on the specific location and its latitude. The phenomenon has cultural and educational significance, often celebrated as a unique astronomical event. It provides an opportunity to teach people about the Earth’s axial tilt, its orbit around the Sun, and the changing angles of sunlight throughout the year.
Similarly, Hyderabad also witnessed Zero Shadow Day earlier on August 3 at 12:23 pm, during which the sun was positioned directly overhead, causing the shadows of vertical objects to vanish temporarily. Additionally, Hyderabad had previously observed this Day on May 9 of the same year.
Zero Shadow Day Schedule – India
As per the ASI, Zero Shadow Day will be observed in the following places in India as per the given dates.
| ZERO SHADOW DAY SCHEDULE IN INDIA – Check for your nearest location to observe |
| Dates with Places |
| 6 Apr & 5 Sep Indira Point |
| 10 Apr & 1 sep Kanyakumari, Nagercoil, Kudankulam, Katchal, Trinket Island |
| 11 Apr & 31 Aug Kovalam, Trivandrum, Kazhakoottam, Nedumangadu, Sathankulam, Tiruchendur |
| 12 Apr & 30 Aug Varkala, Ponmudai, Paravur, Kollam, Kottarakara, Punalur, Tenkasi, Tirunelveli, Thoothukudi, |
| 13 Apr & 29 Aug Kayankulam, Adoor, Thiruvalla, SankaranKoil, Kovilpatti, Rameshwaram,Ramanathapuram, Car Nicobar |
| 14 Apr & 28 Aug Alappuzha, Kottayam, Vaikom, Pala, Sabarimala, Cumbum, Rajapalayam, Sivakasi, Virudhunagar, Paramakudi |
| 15 Apr & 27 Aug Kochi, Vypin, Thodupuzha, Idukki, Munnar, Theni, Andipatti, Tirumangalam, Madurai, Sivaganga, Karaikudi |
| 16 Apr & 26 Aug Paravur, Aluvag, Chalakudy, Valparai, Kodaikanal, Dindigul, Pudukottai, Pattukottai, Vedaranyam |
| 17 Apr & 25 Aug Guruvayur, Ponnani, Thrissur, Ottapalam, Palakkad, Mettupalayam, Pollachi, Udumalpet, Palani, Trichy, Thanjavur, Thiruvarur, Nagapattinam, Little Andaman |
| 18 Apr & 24 Aug Kottakal, Malappuram, Coimbatore, Gudalur, Palladam, Tiruppur, Kangayam, Karur, Kumbakonam, Mayiladuthurai, Karaikal, Poompuhar |
| 19 Apr & 23 Aug Kozhikode, Koyilandy, Thamarassery, Ooty, Kotagiri, Avinashi, Erode, Tiruchengode, Namakkal, Sirkazhi, Chidambaram |
| 20 Apr & 22 Aug Vadakara, Mahe, Thalassery, Perambra, Wayanad, Mudumalai, Bhavani, Salem, Mettur, Kallakuruchi, Neyveli, Panruti, Cuddalore, Port Blair |
| 21 Apr & 21 Aug Kannur, Payyanur, Taliparamba, Dharmapuri, Sankarapuram, Villupuram, Pondicherry, Havelock Island |
| 22 Apr & 20 Aug Kanhangad, Kasargod, Madikeri, Mysore, Srirangapatna, Shivanasamudra, Chengam, Tiruvannamalai, Tindivanam, Long Island |
| 23 Apr & 19 Aug Uppala Gate, Puttur, Arakalagud, Krishnarajapete, Melkote, Mandya, Channapatna, Ramanagara, Attibele, Hosur, Krishnagiri, Tirupattur, Vaniyambadi, Kavalur, Ambur, Arani, Kanchipuram, Chengalpattu, Mahabalipuram, Kelambakkam |
| 24 Apr & 18 Aug Mangalore, Mooadbidri, Bantwal, Sakleshpur, Hassan, Shravanabelagola, Bidadi, Bengaluru, Dasarahalli, Bangarapet, Kolar, Gudiyattam, Vellore, Arcot, Arakkonam, Sriperumbudur, Tiruvallur, Avadi, Chennai, Interview Island, Sound Island |
| 25 Apr & 17 Aug Udupi, Brahmavar, Karkala, Sringeri, Kudremukha, Chickmagaluru, Halebeedu, Arsikere, Tiptur, Tumkur, Doddaballapura, Chickballapura, Chintamani, Chittoor, Thiruthani, Minjur, Pulicat, North Andaman |
| 26 Apr & 16 Aug Kundapura, Trasi, Thirthahalli, Kuppali, Kadur, Tarikere, Sira, Gauribidanur, Peddur, Madanapalle, Tirupati, Srikalahasti, Sriharikota |
| 27 Apr & 15 Aug Bhatkal, Muthala, Shivamogga, Channagiri, Hiriyur, Madakasira, Rayachoty |
| 28 Apr & 14 Aug Honnavar, Kumta, Jog Falls, Shikaripur, Challakere, Kadiri, Nellore |
| 29 Apr & 13 Aug Kumta, Gokarna Sirsi, Ranebennur, Davangere, Anantapur, Cuddapah, Ramathirtham |
| 30 Apr & 12 Aug Karwar, AgondBa, Haveri, Kudigi, Tadipatri. Jammalamadugu, Proddatur, Kavali |
| 1 May & 11 Aug Benaulim, Margao, Dandeli, Hubli, Hospet, Bellary, Guntakal, Gooty |
| 2 May & 10 Aug Panjim. Vasco, Anjuna, Dharwad, Gadag, Gangavathi, Nandyal, Ongole |
| 3 May & 9 Aug Sawantwadi, Belgaum, Sindhanur, Kurnool, Markapur, Chirala, Bapatla |
| 4 May & 8 Aug Malvan, Gokak, Bagalkot, Vinukonda, Chilakaluripet, Machilipatnam |
| 5 May & 7 Aug Devgad, Radhanagari, Mudhol, Raichur, Deosugur, Narasaraopet, Guntur, Mangalagiri, Gudivada |
| 6 May & 6 Aug Ambolgad, Kolhapur, Ichalkaranji, Yadgir, Mahbubnagar, Vijayawada, Eluru, Bhimavaram, Tanuku |
| 7 May & 5 Aug Ratnagiri, Sangli, Miraj, Vijayapura, Nalgonda, Nuzividu, Tadepalligudam, Rajahmundry, Kakinada |
| 8 May & 4 Aug Jaigad, Karad, Afzalpur, Kalburgi, Suryapet, Khammam, Samarlakota |
| 9 May & 3 Aug Chiplun, Mandrup, Akkalkot, Hyderabad, Secunderabad, Kothagudam |
| 10 May & 2 Aug Satara, Pandharpur, Solapur, Basavakalyan, Sangareddy, Jangaon, Palwancha, Visakhapatnam |
| 11 May & 1 Aug Mahabaleshwar, Phaltan, Tuljapur, Medak, Warangal, Vizianagaram |
| 12 May & 31 Jul Mangaon, Baramati, Barshi, Osmanabad, Ausa, Nariapur, Malkangiri, Srikakulam |
| 13 May & 30 Jul Mulshi, Pune, Daund, Latur, Karimnagar, Pamunuru, Sukma, Salur, Bobili |
| 14 May & 29 Jul AlibAug, Lonavla, Talegaon Dabhade, Pimpri Chichwad, Dehu Road, Jamkhed, Ambajogai, Nizamabad, Korutla, Ramagundam, Palakonda |
| 15 May & 28 Jul Mumbai, Navi Mumbai, Karjat, Matheran, Rajgurunagar, Manchar, Ralegan-Siddhi, Beed, Gangakhed, Mancherial, Mandamarri, Dantewada, Jagdalpur, Jeypore |
| 16 May & 27 Jul Borivali, Thane, Dombivili, Kalyan, Bhiwandi, Badlapur, Narayangaon, Khodad, Ahmednagar, Parbhani, Nanded, Nirmal, Mamda, Dudme, Bastar, Nowrangpur, Rayagada, Taptapani, Brahmapur |
| 17 May & 26 Jul Nala Sopara, Virar, Asangaon, Basmat, Kouta, Aheri, Chhota Dongar, Mahulpatna, Pattapur, Ganjam |
| 18 May & 25 Jul Palghar, Kasara Budruk, Sangamner, Shrirampur, Ambad, Hingoli, Adilabad, Mulchera, Koksara, Satapada |
| 19 May & 24 Jul Dahanu, Nashik, Kopargaon, Vaijapur, Aurangabad, Jalna, Pusad, Balharshah, Rowghat, Dharmagarh, Bhawanipatna, Bellaguntha, Puri |
| 20 May & 23 Jul Talasari, Takh, Mehkar, Washim, Wani, Chandrapur, Mul, Keskal, Nayagarh, Motari, Saharabedi |
| 21 May & 22 Jul Bilad, Silvassa, Khedgaon, Manmad, Kannad, Chikhli, Rohna, Wadki, Bhanupratappur, Kanker, Kusuruparaha, Bhubaneswar, Paradeep |
| 22 May & 21 Jul Daman, Vapi, Malegaon, Chalisgaon, Buldana, Khopadi, Yavatmal, Armori, Charama, Saintala, Phulbani, Cuttack |
| 23 May & 20 Jul Diu, Valsad, Bhadgaon, Khamgaon, Akola, Wardha, Kusumkasa, Dhamtari, Balangir, Dhenkanal, Bharcchan |
| 24 May & 19 Jul Somnath, Jafarabad, Navsari, Amalsad, Dhule, Jamner, Shegaon, Nimbora, Wardha, Umred, Kurud, Nuapada, Angul, Bhuban, Jajpur |
| 25 May & 18 Jul Mangrol, Talala, Rajula, Mahuva, Vadoli, Sakri, Amalner, Jalgaon, Bhusawal, Telhara, Amravati, Rajnandgaon, Nawapara Nagar, Padmapur, Bhadrak |
| 26 May & 17 Jul Madhavpur, Datha, Surat, Bardoli, Vyara, Nardana, Chopda, Paratwada, Nagpur, Durg, Bhilai, Bhandara, DOngargarh, Raipur, Barpali, Markona |
| 27 May & 16 Jul Keshod, Savar Kundla, Alang, Nandurbar, Shirpur, Burhanpur, Tumsar, Gondia, Katapali, Chandipur |
| 28 May & 15 Jul Junagadh, Paltana, Ankleshwar, Shahada, Pandhurna, Tilda, Sambalpur, Balasore |
| 29 May & 14 Jul Porbandar, Upleta, Amreli, Bhavnagar, Bharuch, Sendhwa, Chichanda, Bhatapara, Jogal, Digha, Mousuni |
| 30 May & 13 Jul Ghumli, Jamkandorana, Rajpipla, Khargone, Khandwa, Betul, Balaghat, Raigarh, Jharsuguda, Banei, Contai, Pathar Pratima Island |
| 31 May & 12 Jul Bhogat, Bhanvad, Gondal, Gadhada, Amod, Nasvadi, Barwani, Birsa, Kawardha, Champa, Joda, Baripada, Nandigram |
| 1 Jun & 11 Jul Bhatiya, Kamlapur, Sarangpur, Dabhoi, Kasrawad, Sanawad, Chhindwara, Seoni, Mungeli, Bilaspur, Sundargarh, Barbil, Manda, Beida, Haldia, Devasora South |
| 2 Jun & 10 Jul Dwarka, Rajkot, Dholera, Vadodara, Bodeli, Manawar, Sukhtara, Pandaria, Rourkela, Baharagora, Tamluk, Phura |
| 3 Jun & 9 Jul Motikhavdi, Dhandhuka, Borsad, Harda, Chhapara, Korna, Banki Mongra, Lailunga, Jorapokhar, Kharagpur, Medinipur, Debra, Baruipur, South Bungtlang, Kawichaw East |
| 4 Jun & 8 Jul Jamnagar, Petlad, Tutugutu, Chaibasa, Kokpara, Jhargram, Bagnan, Maheshtala, Mothbari, Siaha |
| 5 Jun & 7 Jul Dhrol, Wankaner, Thrangadh, Limbdi, Anand, Mhow, Itarsi, Lakhnadon, Mandla, Pathalgaon, Ghatshila, Howrah, Kolkata, Hasnabad, Chawngte P, Vaumbuk |
| 6-10 Jun & Gandhidam, Morbi, Surendranagar, Dhrangadhra, Ahmedabad, Nadiad, Godhra, |
| 6-2 Jul Dahod, Indore, Dewas, Hoshangabad, Narsingpur, Guthurma, Kunkuri, Jamshedpur, Dhaniakhali, Kalyani, Barrackpore, Bomgain, Basirhat, Lunglei, Lungsen |
| 11-21 Jun & Kothara, Bhuj, Gandhinagar, Ratlam, Ujjain, Tarana, Bhopal, Jabalpur, Shahpura |
| 2 jul-21 Jun Chirimiri, Ambikapur, Surajpur, Ranchi, Balarampur, Purulia, Bankura, Burdwan, Hanshkali, Thenzawl, Serchhip, Zokhawthar |
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