| Class | Description |
|---|---|
| DayOfWeek | GDK enhancements for DayOfWeek. |
| Duration | GDK enhancements for Duration. |
| Instant | GDK enhancements for Instant. |
| LocalDate | GDK enhancements for LocalDate. |
| LocalDateTime | GDK enhancements for LocalDateTime. |
| LocalTime | GDK enhancements for LocalTime. |
| Month | GDK enhancements for Month. |
| MonthDay | GDK enhancements for MonthDay. |
| OffsetDateTime | GDK enhancements for OffsetDateTime. |
| OffsetTime | GDK enhancements for OffsetTime. |
| Period | GDK enhancements for Period. |
| Year | GDK enhancements for Year. |
| YearMonth | GDK enhancements for YearMonth. |
| ZoneId | GDK enhancements for ZoneId. |
| ZoneOffset | GDK enhancements for ZoneOffset. |
| ZonedDateTime | GDK enhancements for ZonedDateTime. |