Java Coding Problems

Converting between Instant and LocalDateTime, ZonedDateTime, and OffsetDateTime

These common conversions can be accomplished as in the following examples:

• Convert between Instant and LocalDateTime—since LocalDateTime has no idea of time zone, use a zero offset UTC+0:

// 2019-02-24T15:27:13.990103700LocalDateTime ldt = LocalDateTime.ofInstant(  Instant.now(), ZoneOffset.UTC);// 2019-02-24T17:27:14.013105ZInstant instantLDT = LocalDateTime.now().toInstant(ZoneOffset.UTC);

• Convert between Instant and ZonedDateTime—convert an Instant UTC+0 to a Paris ZonedDateTime UTC+1:

// 2019-02-24T16:34:36.138393100+01:00[Europe/Paris]ZonedDateTime zdt = Instant.now().atZone(ZoneId.of("Europe/Paris"));// 2019-02-24T16:34:36.150393800ZInstant instantZDT ...