| Village | Udayanachi |
| Block | Thiagadurgam |
| District | Villupuram |
| State | Tamil Nadu |
| Country | India |
| Continent | Asia |
| Time Zone | IST ( UTC + 05:30) |
| Currency | Indian Rupee ( INR ) |
| Dialing Code | +91 |
| Date format | dd/mm/yyyy |
| Driving side | left |
| Internet cTLD | in |
| Language | Tamil |
| Time difference | 8 minutes |
| Latitude | 13.0938995 |
| Longitude | 80.292356 |
Udayanachi is a village panchayat located in the Villupuram district of Tamil-Nadu state,India. The latitude 13.0938995 and longitude 80.292356 are the geocoordinate of the Udayanachi.
The surrounding nearby villages and its distance from Udayanachi are Velakurichi , Koothakudi , Peelamedu , Sithalur , Asakalathur , Eranji , Gurupeedapuram , Virugavoor , Vilakkur , Mudiyanur , Thimmalai , Prithivimangalam , Thiyagai , Kottaiyur , Madam , Nagalur , Sithathur , Chinnamampattu , Eyyanur , Kanangur , Kandachimangalam , Katchakudi , Kongarayapalayam , Koonthalur , Kudiyanallur , Melvizhi , Ninnaiyur , Ogaiyur , Pallagacherri , Panayanangal , Porasakurichi , Pudu - Uchimedu , Sathanur , Sirunagalur , Thiagadurgam , Vadapoondi , Vadathoraslur , Valavanthankuppam , Varanjaram , Vengaivadi .
The native language of Udayanachi is Tamil and most of the village people speak Tamil. Udayanachi people use Tamil language for communication.
Udayanachi village is located in the UTC 5.30 time zone and it follows indian standard time(IST). Udayanachi sun rise time varies 8 minutes from IST. The vehicle driving side in Udayanachi is left, all vehicles should take left side during driving. Udayanachi people are using its national currency which is Indian Rupee and its internationl currency code is INR. Udayanachi phones and mobiles can be accesed by adding the indian country dialing code +91 from abroad. Udayanachi people are following the dd/mm/yyyy date format in day-to-day life. Udayanachi domain name extension( cTLD) is .in .