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6.3.5 CDTDateTime

The DataType CDTDateTime is a subtype of DateTime that defines CCTS DateTime. The DateTime identifies a date and time of day to various common resolutions: year, month, week, day, hour, minute, second, and fraction of second from CCTS and is used to represent a Gregorian calendar date with UTC time.

Table 25 - CDTDateTime Definition

Attribute

Value

BrowseName

CDTDateTime

IsAbstract

False

References

NodeClass

BrowseName

DataType

TypeDefinition

ModellingRule

Subtype of the UtcTime defined in OPC 10000-3

HasCDTSupplemental

Variable

Timezone

String

PropertyType

Optional

HasCDTSupplemental

Variable

DaylightSavings

Boolean

PropertyType

Optional

The Timezone can be used to indicate the time zone associated with the data source. The UtcTime value is in GMT and does not have a time zone factor applied. This parameter is provided to allow a client to display the provided time in the time zone that was associated with to original value.

The DaylightSavings can be used to indicate daylights saving if DaylightSavings was in effect when for the given DateTime. The UtcTime value is in GMT and does not have a Timezone factor applied. This parameter is provided to allow a client to display the provided time with the daylight savings time adjustment that was associated with to original value.

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