Hi Ken.

On Fri, 2 Jan 2026 at 14:06, G. Ken Holman g.ken.holman@xxxxxxxxx <
xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote:

> You don't provide enough data to do any testing,

All there are are more of the same?




> Dave, but I would approach this by using a function that converts the date
> and time elements into the dateTime value of the start of the 3-hour period.
>
> Then you have a single string with which to group.


Yes, I can do that... except I want grouping at a substring of the merged
datetime?

regards



-- 
Dave Pawson
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