Dear John

> However, im not sure what this sentence in 7.4 means: "When
> considering intervals within days, if the earlier time of day is
> equal to the later time of day, then the method is applied to a full
> 24 hour day."

It doesn't matter in the instantaneous case, but it does matter for statistics
that apply to the whole cell, like means and accumulations, such as

>     precipitation:cell_methods="time: sum within days time: mean over days";

If the sums were for 24-hour intervals, the bounds might be

>   climatology_bounds="2008-08-01T00:00Z", "2008-09-01T00:00Z",

Here, the time of day is the same (00:00Z) at both ends. That means it
applies to full days. That's what the bit quoted is talking about. However,
this doesn't arise in your six-hourly case.

Best wishes

Jonathan
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