How do time expressions work in Latin?

Time expressions use different cases in Latin.The accusative case is used to express a duration of time, for example, 'we worked for five hours' would use the accusative case (quinque horas).The ablative case is used to express time when or time within which, for example, 'we started at the third hour' and 'we reached Rome in three days' would use the ablative case (tertia hora) and (tribus diebus).Identify the cases used and translate the following sentences:1) fratres mei paucis diebus advenient2) haec pecunia quinque annos in terra celata erat