While testing the time intrinsics on a Windows machine using the mingw binary from the wiki I noticed the smallest increment of time_and_date, etime, and secnds is 1 second. Should be able to get to milliseconds.
-- Summary: time intrinsics resolution only one second Product: gcc Version: 4.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libfortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: jvdelisle at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28184