Rsync decides to copy all old files to WinXP based server

Craig Barratt cbarratt at
Tue Apr 4 04:32:37 GMT 2006

Alex Janssen writes:

> I've been using rsync to create backup copies of all my data files on my 
> Linux laptop to my Windows XP Home based desktop for about 6 months 
> now.  Been working as it should, copying only files that changed since 
> the last backup.  The first backup I ran after the time change to 
> Daylight Saving Time it wanted to copy all of the files regardless of 
> the timestamp.  It copied old files that had not changed as well as the 
> files that had changed.  All of the timestamps on the destination ended 
> up correctly set after the copy occurred but the appeared to be the same 
> before the copy began as well.  I am stumped.
> I don't know what the system time has to do with it seeing as it is 
> comparing file timestamps.

FAT file systems store time stamps in local time, so they change
with DST.  See JW Schultz's excellent write up:


More information about the rsync mailing list