Translation:

34. To every people is a term appointed: when their term is reached not an hour can they cause delay nor (an hour) can they advance (it in anticipation).

Notes (Tafseer)

1017. People: ummat. I do not know whether "generation" would not be more appropriate here. If so, it would refer to the Time-Spirit, for it affects a whole number of people living contemporaneously, and while we deal grammatically with a group, we really have in mind the individuals composing the group. Anyway, the lesson is what is suggested in the following verses. There is only a limited time for an individual or for a group of people. If they do not make good during that time of probation, the chance is lost, and it cannot come again. We cannot retard or advance the march of time by a single hour or minute. ("Hour" in the text expresses an indefinite but short period of time).