It doesn’t help to be “biggest in the world”. this Jackup still need good weather to position against a platform in the North Sea:
http://petro.no/askeladden-venter-fortsatt-pa-vaeret/142109
In 1980 I waited on weather for nearly 3 months to get what was then the biggest J/U in the world, the “Dyvi Beta”, off a platform in the British sector of the North Sea.