DCMTK

In various places in DCMTK the classes OFDate/Time/DateTime are used to retrieve the current data or time in DICOM format.
There are actually better suited methods available in the corresponding VR classes in module dcmdata (DcmDate/DcmTime/DcmDateTime):

dcmdata/libi2d/i2dplop.cc:  now.getDate().getISOFormattedDate(contentDate, OFFalse);
dcmdata/libi2d/i2dplop.cc:  now.getTime().getISOFormattedTime(contentTime, OFFalse, OFFalse, OFFalse, OFFalse);
dcmdata/libi2d/i2dplop.cc:  now.getISOFormattedDateTime(acquisitionDateTime, OFFalse, OFFalse, OFFalse, OFFalse);
dcmfg/libsrc/concatenationloader.cc:        date.getISOFormattedDate(tempstr, OFFalse /* no delimiters */);
dcmfg/libsrc/concatenationloader.cc:            time.getISOFormattedTime(tempstr, OFTrue /* include seconds */, OFFalse, OFFalse, OFFalse);
dcmimage/libsrc/dcmicmph.cc:        (! dt.getDate().getISOFormattedDate(contentDate, OFFalse)) ||
dcmimage/libsrc/dcmicmph.cc:        (! dt.getTime().getISOFormattedTime(contentTime, OFTrue, OFFalse, OFFalse, OFFalse)))
dcmwlm/libsrc/wlmactmg.cc:    dt.getISOFormattedDateTime(ts, OFTrue /* seconds */, OFTrue /* fraction */, OFFalse /* no tz */, OFFalse /* no delimiters */, "" /* no date / time separator */);
dcmiod/include/dcmtk/dcmiod/iodutil.h:        date.getISOFormattedDate(tempstr, OFFalse /* no delimiters */);
dcmiod/include/dcmtk/dcmiod/iodutil.h:            time.getISOFormattedTime(tempstr, OFTrue /* include seconds */, OFFalse, OFFalse, OFFalse);

In those places where dates/times are needed in DICOM format (and not in ISO format), the code should be changed to use the VR classes.