Hello. I note that all of the examples of timestamps with time ranges in the 
manual, e.g. <2006-11-02 Thu 10:00-12:00>, have end times that are later in the 
same day than the start time. In other words the end time is always numerically 
greater than the start time.

But what about an end time that is numerically less than the start time, like:

<2006-11-02 Thu 12:00-10:00>

I can think of three plausible interpretations:

1. Such a timestamp is invalid and its interpretation is undefined
2. It should be interpreted identically to <2006-11-02 Thu 10:00-12:00>
3. The end time should be interpreted to fall on the next day, i.e. as
  <2006-11-02 Thu 12:00>--<2006-11-03 Fri 10:00>

Ignoring whether any of these interpretations are actually implemented in Org 
Mode, which, if any, is the intended meaning of the format?

Thanks,
Aaron

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