Period following the end of December (3,4)

I think it could be either:

Which length description are you looking for?:

3,4

new year

(Other definitions for new year that I've seen before include "Earliest annual date" , "Its eve is Hogmanay" , "eg 2002" , "Period after 31 December" , "What begins today" .)

I've seen this clue in The Times.

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