What if a passage just says “in the morning” but the statement says “at 8am”? Would that be Not Given? That’s the sort of detail I’m still unsure about.
With only 'in the morning', it's Not Given: 8am is possible but not confirmed. Check the rest of the passage too. Another sentence could confirm 8am or contradict it.
The direction matters too: if the passage says 8am and the statement says 'in the morning', that statement would be True. Making the time less specific is different from adding an exact time.