異なる：different from each other

Translate: 電源がオンの期間とオフの期間は異なる。

ChatGPT:

"The periods when the power is on and off are different."

あなた:

How about "The period in which the power is on and the period in which the power is off are different"?

ChatGPT:

Yes, "The period in which the power is on and the period in which the power is off are different" is also a correct and precise translation. It provides a bit more clarity by explicitly stating "the period in which," which can be helpful for emphasizing the distinct durations of the on and off states.

Both translations are accurate, but this version is more detailed and formal.

あなた:

Is it better to say "are different from each other" than just "are different"?

ChatGPT:

Yes, using "are different from each other" can make the sentence slightly clearer, emphasizing the distinction between the two periods. However, it's not strictly necessary, as "are different" already conveys the intended meaning.

If you want to add extra clarity or emphasize the comparison, you can go with:

"The period in which the power is on and the period in which the power is off are different from each other."

Otherwise, "are different" is still correct and often sufficient.