| Village | Tefna |
| Block | Karnaprayag |
| District | Chamoli |
| State | Uttarakhand |
| 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 | Hindi, Sanskrit |
| Time difference | 17 minutes |
| Latitude | 30.19 |
| Longitude | 78.04 |
Tefna is a village panchayat located in the Chamoli district of Uttarakhand state,India. The latitude 30.19 and longitude 78.04 are the geocoordinate of the Tefna.
The native language of Tefna is Hindi, Sanskrit and most of the village people speak Hindi, Sanskrit. Tefna people use Hindi, Sanskrit language for communication.
Tefna village is located in the UTC 5.30 time zone and it follows indian standard time(IST). Tefna sun rise time varies 17 minutes from IST. The vehicle driving side in Tefna is left, all vehicles should take left side during driving. Tefna people are using its national currency which is Indian Rupee and its internationl currency code is INR. Tefna phones and mobiles can be accesed by adding the indian country dialing code +91 from abroad. Tefna people are following the dd/mm/yyyy date format in day-to-day life. Tefna domain name extension( cTLD) is .in .