How long does it take to ship something from China to the US?

I ordered 2 Iphone 5 cases from Amazon and the seller is in china i clicked the standard shipping how long until it will be here? I live in Ohio by the way.

Sometimes only a week, but it could be 2-3 weeks.

Well, It depends, i have bought my iphone5case from a chinese shop before and it has arrived in 12days, but my friend's package still not arrived for nearly 15 days for the peak time of the festivals.

The xmas and the new year's day has gone, i think the delivery will be faster, you can give it a shot on this site, they offer good service though. Just for reference.lol
BTW, here is the case i bought for myself