Java Date and Timestamp from instance of ZonedDateTime UTC

Question

I have a java application in which I would like the time in UTC. Currently, the code uses a mix of java.util.Date and java.sql.Timestamp. To get th

Answer 1

In Java, Date represents a point in time. It's not related to timestamp. When you call toString() method of a Date object, it converts that time to Platform's default Timestamp, e.g. Following will print date/time in UTC (as it sets default timezone to UTC):

TimeZone.setDefault(TimeZone.getTimeZone("UTC"));
ZonedDateTime zonedDateTime = ZonedDateTime.now(ZoneOffset.UTC);
Timestamp timestamp = Timestamp.from(ZonedDateTime.now(ZoneOffset.UTC).toInstant());
Date date = Date.from(ZonedDateTime.now(ZoneOffset.UTC).toInstant());
System.out.println("ZonedDateTime: " + zonedDateTime);
System.out.println("Timestamp: " + timestamp);
System.out.println("Date: " + date);