Displaying duration in human-readable format instead of seconds on chart by axis Y?

[greg]

I have an advanced XML chart that displays duration in seconds on axis Y.

Sometimes, when the values are high, axis labels become difficult to interpret:

Can I set the labels in human-readable format, in appropriate value range, like this:

So far I've just set the axis type as

<param name="charting.axisY">time</param>

to have duration converted to epoch time (starting from 1970-10-01).

However for big duration values my workaround doesn't look very well since full date timestamps are included into label markers for the bottom and top values on the Y-axis.

Is there any way to configure a label convertor for the proper time scale?

[lguinn2]

In the search, where you are calculating the duration, can you add

 | fieldformat timeVariable = tostring(timeVariable,"duration")

I don't know if this will help on the chart in advanced XML, but it would make the durations look better in a table...

[lguinn2]

I don't think there is a way to use one representation (such as epoch time) for the data values and a different (though corresponding) representation for the scale... if fieldformat doesn't do it, then I don't know what will.

[greg]

As for the tabular data, yes, I've already done so.
But still looking for a solution on axis labels...