Hello.

I'm planning a rtw-trip, and just wonder if it's possible to go from Asia to Africa, and then continue towards Australia?

Let's say my itinerary looks like this:
OSL-HEL-NRT-HKG-JNB-SYD-AKL-SCL-NYC-LHR-OSL

With this itinerary I'm heading eastwards between continents except for my HKG-JNB flight . Is this legal or not?

Thank you.