| English | eng-000 |
| light-second | |
| dansk | dan-000 | lyssekund |
| Deutsch | deu-000 | Lichtsekunde |
| English | eng-000 | light second |
| Esperanto | epo-000 | lumsekundo |
| français | fra-000 | seconde-lumière |
| 日本語 | jpn-000 | 光秒 |
| polski | pol-000 | sekunda świetlna |
| português | por-000 | segundo-luz |
| русский | rus-000 | световая секунда |
| svenska | swe-000 | ljussekund |
| Türkçe | tur-000 | ışık saniyesi |