| Subject | English | Spanish |
| commun. | breakdown of internal down time | subdivisión del tiempo de indisponibilidad interna |
| IT | internal cycle time | tiempo de ciclo interno |
| commun. | internal down time | tiempo de indisponibilidad interna |
| automat. | internal idle time | tiempo inactivo interno |
| comp., MS | internal lead time | plazo de entrega interno (The lead time for an intercompany sales order) |
| comp., MS | internal processing time | tiempo de procesamiento interno (The amount of time a function spends doing internal execution, as opposed to calling other functions) |
| commun., IT | internal time slot | intervalo de tiempo interno |