The next transition is in Autumn/Fall when clocks go back. I presume
that the hour 01:00 to 02:00 is repeated in your area.
The nextTransition() method returns the time just after the
transition. 02:00 (summer) never happens, so the method returns 01:00
(winter).
The previousTransition() method returns the last millisecond before
the transition. Remember that in Spring, 02:00 never happens during
the DST gap, so the method cannot return 02:00.
To print the transition time, use previousTransition(), convert it to
a LocalDateTime, then add one millisecond.
Stephen
On 1 June 2011 15:13, java.peri...@gmail.com <java.peri...@gmail.com> wrote:
>
> Given the following code using a US/Eastern timzone:
>
> final DateTimeFormatter format = DateTimeFormat.mediumDateTime();
> final DateTimeZone tz = DateTimeZone.forID("US/Eastern");
> final long currentDateInMillis = System.currentTimeMillis();
>
> final DateTime firstTransition = new
> DateTime(tz.nextTransition(currentDateInMillis), tz);
> final DateTime secondTransition = new
> DateTime(tz.previousTransition(currentDateInMillis), tz);
>
> System.out.println("First Transition: " +
> format.print(firstTransition));
> System.out.println("Second Transition: " +
> format.print(secondTransition));
>
>
> Can someone explain to me why I get the following for output:
>
> First Transition: Nov 6, 2011 1:00:00 AM
> Second Transition: Mar 13, 2011 1:59:59 AM
>
>
> The transitions for US/Eastern timezones occur at 2 AM so why am I
> seeing 1:00 AM and 1:59:59 AM?
>
>
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