How long before adsense shows relevant ads?

Just bought and launched a new site.

[Born_User]

I bought a domain. It's been around for a long time. I bought it and put all new content on it. The site used to be about a topic dealing with travel. Now, it's about something totally different. But when I put adsense on there today, it is displaying ads about travel.

How long can I expect it to take Adsense to start displaying relevant ads? Has anyone else experienced this?

[cubic]

I asked once Google regarding this issue and they told me that it takes up to 30 minutes for their bot to crawl the page you run AdSense code.

[Jenstar]

Were these same pages running AdSense before? If so, changing the ad unit size will usually prompt a revisit.

[Born_User]

It's now day 2 and the same travel ads are still there. This time there are some golf ads there too. (?) This site has never had adsense on it before. I am certain. It's also interesting that the page topic is not even in the same ballpark as the ads that are presenting. It's like having a site about basketball, with ads showing up about christmas trees or something. Nothing alike. They're not PSA's either.

I have several other sites that run adsense on them, and I am familiar with how to optimize the page for good adsense terms. The page topic is a very narrow topic, not general at all. I should be getting a good set of ads there.

I obviously need to really go through this page and see what's the deal.

I am still open to suggestions.

[Born_User]

Thanks, Jenstar. Changing the ad unit size did the trick!