ASA Database Administration Guide
  Database Options
    Alphabetical list of options

ISQL_COMMAND_TIMING option [ISQL]

Function 

Controls whether SQL statements are timed or not.

Allowed values 

ON, OFF

Default 

ON

Description 

This boolean option controls whether SQL statements are timed or not. If you set the option to ON, YES, or 1, the time of execution appears in the Messages pane after you execute a statement. If you set the option to OFF, NO, or 0, the time does not appear.

You can also set this option on the Messages tab of the Options dialog.