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XCOPY /D Uses Universal Time, Not Local Time, to Filter Files
Article ID: 194918 - View products that this article applies to.
This article was previously published under Q194918
The /D option of the XCOPY command does not specify local time. Instead, XCOPY /D copies all files created GMT 12:00 A.M. or later on the date specified. XCOPY /D: does not convert the entered date from local time to universal time before doing the copy.
For example, if the system is set for PDT (-7) and the following files exist in the Test folder
TEST1.TMP 07/27/98 04:02p TEST2.TMP 07/27/98 05:02p TEST3.TMP 07/28/98 12:01a TEST4.TMP 07/28/98 12:02a
and the following command is entered
xcopy *.tmp d:\test\*.* /D:07-28-98the following files are copied:
TEST2.TMP 07/27/98 05:02p TEST3.TMP 07/28/98 12:01a TEST4.TMP 07/28/98 12:02a
XCOPY compares the date provided in the /D switch against the file date to determine which files to copy. In Windows NT, the file date is stored in Universal Time (GMT).
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or the individual software update. For information on obtaining the latest service pack, please go to:
Microsoft has confirmed this to be a problem in Windows NT version 4.0. This problem was first corrected in Windows NT 4.0 Service Pack 5.