It's time to go to school.

去学校的时间到了。

E. g. It's time for school. = It's time to go to school.

到了上学的时候。

That was great! But it's time to go to school now. So, Maggie, make me big again. Ok. Abracadabra!

太棒啦！但现在该去学校了。麦琪，再把我变大吧。好的，阿布拉卡达布拉！