DateTimeParse Exception

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The devil is in the detail. You are basically doing it correctly, except:

  • You need to provide a locale for the formatter.
  • By parsing into a LocalDateTime you are losing information and possibly getting an unexpected result.

So I suggest:

    DateTimeFormatter formatter = DateTimeFormatter.ofPattern(
            "EEE MMM dd HH:mm:ss zzz yyyy", Locale.ROOT);

    String linesplit8 = "Wed May 21 00:00:00 EDT 2008";
    ZonedDateTime zdt = ZonedDateTime.parse(linesplit8, formatter);

    System.out.println(zdt);

Output is:

2008-05-21T00:00-04:00[America/New_York]

Your string is in English. It looks like the output from Date.toString() (Date being the old-fashioned class used for times before Java 8). So it’s probably in English because that toString method always produced English output. So if your locale is not an English-speaking one, parsing is deemed to fail, and I believe this is the reason why it did. In this case it’s appropriate to use Locale.ROOT for the locale neutral English-speaking locale. A way to say “don’t apply any locale specific processing here”.

Your string contains a time zone abbreviation, EDT, which is part of identifying a unique point in time, so you will want to pick up this part of the information too. Therefore use a ZonedDateTime.

Links

There are some related/similar questions, for example:

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