Date and Time

The java.time API, instants, durations, periods, zones and formatting.

3 notes

Notes

The modern date and time API is immutable, thread safe and clearly named, and it replaced the older Date and Calendar classes entirely.

Java

Instant marks a point on the timeline; Duration measures time based amounts and Period measures date based ones.

Java

DateTimeFormatter converts between text and date time values, and ZoneId handles the region rules that make time zones difficult.