Time change and toddlers ???

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How do you adjust ? He slept till 8 today which is unlike him. Usually up at 5!

But now it’s nearly 2:30 and he won’t nap. He usually is down by 12:30-1 and sleeps till 3

I’m nervous if he doesn’t nap he’s going to go to bed super early and be up seven earlier tomorrow.

How do I fix this ??