Make sure you're using an XY chart.
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David Biddulph

"Robert H" wrote in message
ps.com...
I need to create a time line for hourly data, tide vs location along a
coastline. The range is less than 24 hours of data. Selecting time
scale as a chart option will setup a time line and arrange event by
order of occurance but it seems to ignore time. Is it possible to do
this on an hourly basis?