You can specify one of two date style options by clicking one of the radiobuttons from the ``Configure/Date style'' menu as shown in figure 5.22.

Figure 5.22: Date style options
The two choices are described below:
Note, the ``Date style'' option is available only in ``Search mode''. So, you
must go to ``Search mode'' in order to change the date style. The ``Date style''
option remains stippled in modes other than ``Search mode''.
The environment variable shown in figure 5.23 tells Qddb how to format your dates.
export QDDB_DATESTYLE=us
export QDDB_DATESTYLE=european
Figure 5.23: Set environment variable to override compiled default
The environment variable overrides the compiled default(you can set the compiled default during Qddb installation). The user's selection overrides the environment variable setting.