A woman wearing a black t-shirt and green capri pants walks in front of a giant clock.
It is noon.
The woman can walk at any time even if it is not noon.
It could be any time, not necessarily noon.
The 24 hour time period we call a day can be divided into many time segments and there are an infinite number of time periods that a day can be divided into, so, a described action can occur at an infinite number of time periods, noon just being one of many possible times.