2.2.2.18 DtStamp

As a top-level element of the Calendar class, the DtStamp element is an optional element that specifies the date and time at which the calendar item was created or modified or the date and time at which the exception item was created or modified. It is used in ActiveSync command requests and responses as specified in section 2.2.2.

As an optional child element of the Exception element (section 2.2.2.21), the DtStamp element specifies the date and time that this exception was created. A command request or response has a maximum of one DtStamp child element per Exception element. If the DtStamp element is not specified as a child element of an Exception element, the value of the DtStamp element is assumed to be the same as the value of the top-level DtStamp element.

The DtStamp element is defined as an element in the Calendar namespace. The value of this element is a string data type, represented as a Compact DateTime ([MS-ASDTYPE] section 2.7.2).

Protocol Versions

The following table specifies the protocol versions that support this element. The client indicates the protocol version being used by setting either the MS-ASProtocolVersion header, as specified in [MS-ASHTTP] section 2.2.1.1.2.6, or the Protocol version field, as specified in [MS-ASHTTP] section 2.2.1.1.1.1, in the request.

Protocol version

Element support

2.5

Yes

12.0

Yes

12.1

Yes

14.0

Yes

14.1

Yes

16.0

Yes

16.1

Yes

When protocol version 2.5 is used, the DtStamp element is required.

The client MUST NOT include the DtStamp element in command requests when protocol version 16.0 or 16.1 is used.