Stack Overflow
Stack Overflow

Questions tagged [zoneddatetime]

`ZonedDateTime` is a standard Java class representing a “date-time with a time-zone in the ISO-8601 calendar system, such as 2007-12-03T10:15:30+01:00 Europe/Paris.”

339 questions
150
votes
9 answers

How to convert ZonedDateTime to Date?

I am trying to set a server agnostic date time in my database and I believe the best practice to do so is to set a UTC DateTime. My db server is Cassandra and the db driver for Java understands only the Date type. So assuming that in my code I am…
Milen Kovachev
  • 5,111
  • 6
  • 41
  • 58
129
votes
10 answers

Is there any way to convert ZoneId to ZoneOffset in Java 8?

I have an epoch second and a zoneId (see method1 below). It can be convert to LocalDateTime with system default zoneId, but I don't find the way to convert epoch second to LocalDateTime (see method2 below), because there is no…
Renkai
  • 1,991
  • 2
  • 13
  • 18
86
votes
2 answers

Java 8: How to create a ZonedDateTime from an Epoch value?

Java 8's LocalDateTime has an ofEpochSecond method. Unfortunately, there is no such method in the ZonedDateTime. Now, I have an Epoch value and an explicit ZoneId given. How do I get a ZonedDateTime out of these?
rabejens
  • 7,594
  • 11
  • 56
  • 104
64
votes
3 answers

How to format a ZonedDateTime to a String?

I want to convert a ZonedDateTime to a String in the format of ("dd/MM/yyyy - hh:mm"). I know this is possible in Joda-Time other types, just using their toString("dd/MM/yyyy - hh:mm")....But this doesn't work with ZonedDateTime.toString(). How can…
Michel Feinstein
  • 13,416
  • 16
  • 91
  • 173
57
votes
5 answers

Converting string to 'Instant'

I am trying to convert datetime in a string to an Instant instance using Java 8 or a utilities package. For example, String requestTime = "04:30 PM, Sat 5/12/2018"; to Instant reqInstant should result in 2018-05-12T20:30:00.000Z reqString is in…
masterfly
  • 861
  • 4
  • 11
  • 24
54
votes
5 answers

Convert ZonedDateTime to LocalDateTime at time zone

I have an object of ZonedDateTime that is constructed like this ZonedDateTime z = ZonedDateTime.of(LocalDate.now().atTime(11, 30), ZoneOffset.UTC); How can I convert it to LocalDateTime at time zone of Switzerland? Expected result should be 16…
Vitalii
  • 10,091
  • 18
  • 83
  • 151
47
votes
5 answers

Jackson serializes a ZonedDateTime wrongly in Spring Boot

I have a simple application with Spring Boot and Jetty. I have a simple controller returning an object which has a Java 8 ZonedDateTime: public class Device { // ... private ZonedDateTime lastUpdated; public Device(String id, ZonedDateTime…
jbx
  • 21,365
  • 18
  • 90
  • 144
32
votes
2 answers

How to convert ZonedDateTime to milliSecond in Java?

I'm trying to convert ZonedDateTime to milliseconds using below code. LocalDateTime ldt = LocalDateTime.now(); ZonedDateTime zonedDateTime =ldt.atZone(ZoneId.of(""Asia/Kolkata"")); zonedDateTime.toInstant().toEpochMilli(); But this one returns…
Arun
  • 510
  • 2
  • 5
  • 9
27
votes
4 answers

ZonedDateTime toString compatability with ISO 8601

I am trying to ensure that calling toString() on my ZonedDateTime Object will comply with ISO-8601 format. The documentation for the toString() method states: ...The output is compatible with ISO-8601 if the offset and ID are the same Does this…
theyuv
  • 1,556
  • 4
  • 26
  • 55
26
votes
3 answers

Convert java.sql.Timestamp to Java 8 ZonedDateTime?

Migrating Joda time to Java 8 Joda: UserObject user = new UserObject() user.setCreatedAt(new DateTime(rs.getTimestamp("columnName")));` Migrating to Java 8 This is my code; it does compile; I am doubtful if it…
Parameswar
  • 1,951
  • 9
  • 34
  • 57
26
votes
1 answer

Set the time-of-day on a ZonedDateTime in java.time?

How can I alter the time-of-day portion of an existing ZonedDateTime object? I want to keep the date and time zone but alter the hour and minutes.
Basil Bourque
  • 303,325
  • 100
  • 852
  • 1,154
23
votes
5 answers

ZonedDateTime to UTC with offset applied?

I am using Java 8 This is what my ZonedDateTime looks like 2013-07-10T02:52:49+12:00 I get this value as z1.format(DateTimeFormatter.ISO_OFFSET_DATE_TIME) where z1 is a ZonedDateTime. I wanted to convert this value as 2013-07-10T14:52:49 How…
daydreamer
  • 87,243
  • 191
  • 450
  • 722
20
votes
1 answer

Instant vs ZonedDateTime

I just do not quite understand which one of those two I should use for the following example: We have an OfferEntity which has a member availableDay which is the date at which the offer is available. Now, the table will look something like…
Stefan Falk
  • 23,898
  • 50
  • 191
  • 378
20
votes
3 answers

ZonedDateTime comparison: expected: [Etc/UTC] but was: [UTC]

I was comparing two dates which seem to be equal, but they contain a different name of zones: one is Etc/UTC, another is UTC. According to this question: Is there a difference between the UTC and Etc/UTC time zones? - this two zones are the same.…
Andremoniy
  • 34,031
  • 20
  • 135
  • 241
19
votes
3 answers

Set hours minutes and seconds to 00 in ZonedDateTime or Instant

I have a date string in Utc format - String dateStr = "2017-03-03T13:14:28.666Z"; And I want to convert it to below format in Java date representation in ZonedDateTime. When ZonedDateTime is printed it should show String dateStr =…
WitVault
  • 23,445
  • 19
  • 103
  • 133
1
2 3
…
22 23