92AlanC :
I'm trying to parse a date/time string with SimpleDateFormat but the output I'm getting is an hour later than expected.
Code
fun formatDate(dateString: String): String {
val locale = Locale.ENGLISH
val time = SimpleDateFormat("EEE MMM dd HH:mm:ss ZZZZZ yyyy", locale).parse(dateString)?.time
return SimpleDateFormat("dd/MM/yyyy HH:mm", locale).format(time)
}
Test
@Test
fun shouldFormatDate() {
val dateString = "Wed Mar 31 23:13:44 +0000 2010"
val expected = "31/03/2010 23:13"
assertThat(formatDate(dateString)).isEqualTo(expected)
}
Output
expected: 31/03/2010 23:13
but was : 01/04/2010 00:13
I tried using ISO-8601 time zone formatting (X instead of Z) but it didn't work either.
Any help will be much appreciated
Thomas Kläger :
Your input define a timezone offset to GMT of +0000 - for the input the locales timezone doesn't matter.
Your output however uses the timezone offset in effect on 2010-03-31 23:12 GMT in the ENGLISH locale timezone. On first of April 2010 the ENGLISH locale uses Daylight Savings Time, which has a timezone offset +0100, meaning is one hour later than GMT.
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