| Village | Harnahi |
| Block | Raxaul |
| District | Purbi Champaran |
| State | Bihar |
| 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,Urdu |
| Time difference | -11 minutes |
| Latitude | 25.62 |
| Longitude | 85.13 |
Harnahi is a village panchayat located in the Purbi Champaran district of Bihar state,India. The latitude 25.62 and longitude 85.13 are the geocoordinate of the Harnahi.
The surrounding nearby villages and its distance from Harnahi are Raxaul , Bhelahi , Siswa , Dhangarhwa Kaurihar , Gamaharia , Jokiyari , Lawkaria , Laxmipur Lachhunanwa , Noniadia , Palanwa Jagdhar , Pantoka , Parsauna Tapsi , Purandra .
The native language of Harnahi is Hindi,Urdu and most of the village people speak Hindi,Urdu. Harnahi people use Hindi,Urdu language for communication.
Harnahi village is located in the UTC 5.30 time zone and it follows indian standard time(IST). Harnahi sun rise time varies -11 minutes from IST. The vehicle driving side in Harnahi is left, all vehicles should take left side during driving. Harnahi people are using its national currency which is Indian Rupee and its internationl currency code is INR. Harnahi phones and mobiles can be accesed by adding the indian country dialing code +91 from abroad. Harnahi people are following the dd/mm/yyyy date format in day-to-day life. Harnahi domain name extension( cTLD) is .in .