Is there a way to change the times in the Review Forecast?

Simple answers; no.

The review intervals are chosen carefully, you can read about how they work here - you’ll find they come in at these times:

Unlock Kanji = 0hrs
Apprentice 1 → 2 = 4hrs later
Apprentice 2 → 3 = 8hrs after that
Apprentice 3 → 4 = 23hrs after that
Apprentice 4 → Guru = 47hrs after that

The best advice is to pay attention to when you’re doing lessons. If you do your lessons at 10AM you’ll get the Apprentice 2 review at 2PM and the Apprentice 3 review at 10PM. That way none came in over night.

Also, while I’m here, you might get some use out of this information:

\textcolor{pink}{\huge \textsf{WELCOME! ^-^}}

welcome gif - crabigator

Take the time to check out the FAQ and GUIDE if you haven’t already.

There’s also a lot of good stuff on the forum to help you, like:

The Ultimate Guide for WK
The Ultimate Additional Japanese Resource List
The New and Improved List of API and Third-Party Apps

I hope your Japanese learning journey goes well and that you enjoy your time with us on the forums.