Java8 java.util.Date conversion to java.time.ZonedDateTime
I am getting the following exception while trying to convert java.util.Date
to java.time.LocalDate
.
java.time.DateTimeException: Unable to obtain ZonedDateTime from TemporalAccessor: 2014-08-19T05:28:16.768Z of type java.time.Instant
The code is as follow:
public static Date getNearestQuarterStartDate(Date calculateFromDate){
int[] quaterStartMonths={1,4,7,10};
Date startDate=null;
ZonedDateTime d=ZonedDateTime.from(calculateFromDate.toInstant());
int frmDateMonth=d.getMonth().getValue();
Is there something wrong in the way I am using the ZonedDateTime
class?
As per documentation, this should convert a java.util.Date
object to ZonedDateTime
. The date format above is standard Date?
Do I have to fallback on Joda time?
If someone could provide some suggestion, it would be great.
To transform an Instant
to a ZonedDateTime
, ZonedDateTime
offers the method ZonedDateTime.ofInstant(Instant, ZoneId)
. So
So, assuming you want a ZonedDateTime
in the default timezone, your code should be
ZonedDateTime d = ZonedDateTime.ofInstant(calculateFromDate.toInstant(),
ZoneId.systemDefault());
To obtain a ZonedDateTime from a Date you can use:
calculateFromDate.toInstant().atZone(ZoneId.systemDefault())
You can then call the toLocalDate
method if you need a LocalDate. See also: Convert java.util.Date to java.time.LocalDate