I am analysing occurrences of a phenomenon by time, and each of these
timestamps taken from email headers represents one occurrence. (The last
number is the time zone.) I can easily change the format.

Sun, 14 Jun 2009 07:33:00 -0700
Sun, 14 Jun 2009 08:35:10 -0700
Sun, 14 Jun 2009 21:26:34 -0700
Mon, 15 Jun 2009 19:47:47 -0700
Wed, 17 Jun 2009 21:50:41 -0700

I've found documentation for a plethora of ways of importing time data, but
I can't decide how to approach it. Any ideas on what may be the cleanest
way? The only special concern is that I'll want to plot these data by date
and time, meaning that I would rather not bin all of the occurrences from
one day.

The time zone isn't important as these are all local times; the time zone
only changes as a function of daylight savings time, so I probably shouldn't
use it at all.

Tom

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