He asked for time, not forgiveness.
What Iblis did with his last request
Just thrown out, Iblis made one request. He did not ask to be forgiven. He asked for time until the Day people are raised. The tafsir contrasts him with Adam, whose nature led him to return to Allah, admit his error, and ask forgiveness.
You got caught: a lie, a shortcut, a harsh word. You can ask for room to keep doing it more carefully. Or you can ask for forgiveness and change. Both are requests. Only one goes somewhere good.
When I get caught, I just need to be more careful next time.
After a fall, the question is whether I ask for time or for forgiveness.
Turn one mistake from this week into a sincere istighfar tonight.