You are using an Instant to get that milliseconds representation. Instant are not zone based. Now, the epoch time is based on the “1970-01-01T00:00:00Z” so you should not have the zone in it. If you want to create a ZoneDateTime from the epoch value, you can simply create an Instant at that epoch time and … Read more
There is a library jackson-datatype-jsr310. Try it. This library covers new datetime API and includes serializers for ZonedDateTime too. All you need is just to add JavaTimeModule: ObjectMapper mapper = new ObjectMapper(); mapper.registerModule(new JavaTimeModule()); UPDATE To convert datetime to ISO-8601 string you should disable WRITE_DATES_AS_TIMESTAMPS feature. You can easily do by either overriding ObjectMapper bean … Read more
How can I convert it to LocalDateTime at time zone of Switzerland? You can convert the UTC ZonedDateTime into a ZonedDateTime with the time zone of Switzerland, but maintaining the same instant in time, and then get the LocalDateTime out of that, if you need to. I’d be tempted to keep it as a ZonedDateTime … Read more
tl;dr Fix your formatting pattern for unpadded month and day. Use only java.time classes, never the legacy classes. Contrived example: LocalDateTime.parse( // Parse as an indeterminate `LocalDate`, devoid of time zone or offset-from-UTC. NOT a moment, NOT a point on the timeline. “04:30 PM, Sat 5/12/2018” , // This input uses a poor choice of … Read more
You can use java.time.format.DateTimeFormatter. https://docs.oracle.com/javase/8/docs/api/java/time/format/DateTimeFormatter.html Here there is an example ZonedDateTime date = ZonedDateTime.now(); System.out.println(DateTimeFormatter.ofPattern(“dd/MM/yyyy – hh:mm”).format(date));
You should be able to do this via the Instant class, which can represent a moment given the epoch time. If you have epoch seconds, you might create something via something like Instant i = Instant.ofEpochSecond(t); ZonedDateTime z = ZonedDateTime.ofInstant(i, zoneId);
Here is how you can get ZoneOffset from ZoneId: Instant instant = Instant.now(); //can be LocalDateTime ZoneId systemZone = ZoneId.systemDefault(); // my timezone ZoneOffset currentOffsetForMyZone = systemZone.getRules().getOffset(instant); NB: ZoneId can have different offset depending on point in time and the history of the particular place. So choosing different Instants would result in different offsets. NB2: … Read more
You can convert ZonedDateTime to an instant, which you can use directly with Date. Date.from(java.time.ZonedDateTime.now().toInstant());