March time (4)
I believe the answer is:
ides
'march time' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ides that I've seen before include "May 15, for example" , "Caesar's fateful day" , "date for 21 [ROMAN]?" , "Unlucky day for Julius Caesar" , "Julius Caesar was told to beware the . . . . of March" .)