Java SimpleDateFormat -- input and output is different

Question

I get the date string --"2012-04-19 20:51:06". Then I get the milli time by SimpleDateFormat.

    SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
    Date d=sdf.parse("2012-04-19 20:51:06");
    long milliTime=d.getTime()

Then the milliTime is 1334839866000L

However when I convert milliTime to date format String. The result is "2012-04-19 08:51:06"

    long time = 1334839866000L;
    Date date = new Date(time);

    SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
    String t = sdf.format(date);

What's the problem?

pilotcam · Accepted Answer · 2012-04-23 03:03:12Z

8

Try using HH for the hour component rather than hh.

answered Apr 23, 2012 at 3:03

pilotcam

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3 Comments

Thilo Over a year ago

+1. The difference being 24-hours format (HH) versus am/pm (hh).

user unknown Over a year ago

But shouldn't the one format (hh?) throw an exception, when fed with the wrong input (20)?

pilotcam Over a year ago

@user unknown: I haven't done any testing, but the Java Doc says: By default, parsing is lenient: If the input is not in the form used by this object's format method but can still be parsed as a date, then the parse succeeds. Clients may insist on strict adherence to the format by calling setLenient(false).

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