Switch PHD from FT to PT back to FT

C

I'm currently half way through my PhD with just over 2 years to go.

A part time job opportunity has come up which would seriously benefit my career. However it's only for 2 years.

If I switch to a part time PhD that will effectively double my time left to 4 years but the job contract is just for 2 of those.

Is it ever possible to go back to full time after switching to PT?

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