Data types (Outlook exported APIs)

This section describes the data types that Outlook exports.

Data type	Description
TZDEFINITION	Represents an entire time zone including all historical, current, and future time zone shift rules for daylight saving time.
TZREG	Defines when daylight saving time starts, when the return to standard time occurs, and how many hours the daylight saving shift is.
TZRULE	Specifies information for a time zone rule about when daylight saving time starts, and the year in which that time zone rule first takes effect.