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| author | Daniel Wilhelm <daniel@wili.li> | 2014-04-18 17:29:28 +0200 |
|---|---|---|
| committer | Daniel Wilhelm <daniel@wili.li> | 2014-04-18 17:29:28 +0200 |
| commit | 75c07011b7c4d06acd7b45dabdcd60ab9d80f385 (patch) | |
| tree | 8853c3978dd152ef377e652239448b1352320206 /BUILD/Help/html/Daylight Saving Time.html | |
| parent | 5.22 (diff) | |
| download | FreeFileSync-75c07011b7c4d06acd7b45dabdcd60ab9d80f385.tar.gz FreeFileSync-75c07011b7c4d06acd7b45dabdcd60ab9d80f385.tar.bz2 FreeFileSync-75c07011b7c4d06acd7b45dabdcd60ab9d80f385.zip | |
5.23
Diffstat (limited to 'BUILD/Help/html/Daylight Saving Time.html')
| -rw-r--r-- | BUILD/Help/html/Daylight Saving Time.html | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/BUILD/Help/html/Daylight Saving Time.html b/BUILD/Help/html/Daylight Saving Time.html deleted file mode 100644 index 8cc5601c..00000000 --- a/BUILD/Help/html/Daylight Saving Time.html +++ /dev/null @@ -1,74 +0,0 @@ -<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> -<HTML> -<HEAD> - <META HTTP-EQUIV="CONTENT-TYPE" CONTENT="text/html; charset=windows-1252"> - <TITLE></TITLE> - <META NAME="GENERATOR" CONTENT="OpenOffice.org 3.4.1 (Win32)"> - <META NAME="CREATED" CONTENT="20091208;20054200"> - <META NAME="CHANGED" CONTENT="20130206;18224323"> - <META NAME="Info 1" CONTENT=""> - <META NAME="Info 2" CONTENT=""> - <META NAME="Info 3" CONTENT=""> - <META NAME="Info 4" CONTENT=""> - <STYLE TYPE="text/css"> - <!-- - @page { margin: 2cm } - P { margin-bottom: 0.21cm } - H2.cjk { font-family: "SimSun" } - H2.ctl { font-family: "Mangal" } - --> - </STYLE> -</HEAD> -<BODY LANG="en-US" DIR="LTR"> -<H2 CLASS="western"><FONT FACE="Tahoma, sans-serif"><FONT SIZE=4 STYLE="font-size: 15pt"><SPAN STYLE="font-style: normal">Daylight Saving Time </SPAN><SPAN STYLE="font-style: normal"><SPAN STYLE="font-weight: normal">(Windows)</SPAN></SPAN></FONT></FONT></H2> -<P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">A -common problem synchronization software has to handle are +-1 hour -file time shifts after a Daylight Saving Time (DST) switch has -occurred. This can be observed for example when a FAT-formatted -volume is compared against an NTFS volume as is the case when synchronizing a local disk against a -USB memory stick. Files that previously appeared to be in sync are -now shown with an one hour modification time offset, although they -have not been modified by the user or the operating system.</FONT></P> -<P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">The -reason for this behavior lies in the way NTFS and FAT drives -store file times: NTFS stores time in UTC format, while FAT uses -local time.</FONT></P> -<P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">When -times of these two different formats are compared, one format -has to be converted into the other first. In either way Windows uses -the current DST status as well as the current time zone for -its calculations. Consequently the result of this comparison is -dependent from current system settings and in particular file times -that used to be the same can show up as different after a DST switch or when the time zone is changed.</FONT></P> -<P STYLE="margin-bottom: 0cm"><BR> -</P> -<P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">For a -detailed discussion about this issue refer to: -<A HREF="http://www.codeproject.com/KB/datetime/dstbugs.aspx">http://www.codeproject.com/KB/datetime/dstbugs.aspx</A></FONT></P> -<P STYLE="margin-bottom: 0cm"><BR> -</P> -<P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif"><B>Solution:</B></FONT></P> -<P STYLE="margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif"> -FreeFileSync automatically handles this problem by adding the missing time information. Each file on a -FAT volume automatically gets additional meta data encoded in its -creation date that enables a correct file time calculation. This not -only solves all DST issues but also time shifts that occur due to -travel between different time zones.</FONT></P> -<P STYLE="margin-bottom: 0cm"><BR> -</P> -<P STYLE="margin-left: 1.32cm; margin-bottom: 0cm"><SPAN ID="Rahmen1" DIR="LTR" STYLE="float: left; width: 80%; border: 1px solid #000080; padding: 0.05cm; background: #ccccff"> - <P ALIGN=LEFT STYLE="margin-left: 0.79cm; margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif"><B>Note</B></FONT></P> - <LI><P ALIGN=LEFT STYLE="margin-left: 0.79cm; margin-bottom: 0cm"><FONT FACE="Tahoma, sans-serif">In - order for FreeFileSync to start handling DST and timezone - differences, an initial full synchronization is required. - Subsequent syncs will then never show a time difference again for unchanged files.</FONT></P> - <LI><P ALIGN=LEFT STYLE="margin-left: 0.79cm; margin-bottom: 0cm; font-style: normal"> - <FONT FACE="Tahoma, sans-serif">If a FAT volume is scanned the - first time by FreeFileSync this will take longer than usual since - additional meta data is written for each file.</FONT></P> -</SPAN><BR CLEAR=LEFT><BR> -</P> -<P STYLE="margin-bottom: 0cm"><BR> -</P> -</BODY> -</HTML>
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