LDATE 
It describes that the type is used as date only. The interval is nanoseconds since 1970-01-01.
The representation of the LDATE DataType in the address space is shown in the following table:
| Name | Attribute |
|---|---|
| NodeId | ns=1;i=3014 |
| NamespaceUri | http://PLCopen.org/OpcUa/IEC61131-3/ |
| BrowseName | LDATE |
| IsAbstract | False |
| SubtypeOf | Int64 |
| Categories |