Smalltalk Each Smalltalk dialect comes with its own built-in classes for dates, times and timestamps, only a few of which implement the DateAndTime and Duration classes as specified by the ANSI Smalltalk Standard. VisualWorks provides a TimeZone class that supports up to two annually recurring offset transitions, which are assumed to apply to all years (same behavior as Windows time zones). Squeak provides a Timezone class that does not support any offset transitions. Dolphin Smalltalk does not support time zones at all.
smalltalk each smalltalk dialect comes with its own built-in classes for dates times and timestamps only a few of which implement the dateandtime and duration classes as specified by the ansi smalltalk standard visualworks provides a timezone class that supports up to two annually recurring offset transitions which are assumed to apply to all years (same behavior as windows time zones) squeak provides a timezone class that does not support any offset transitions dolphin smalltalk does not support time zones at all