#Exiftool gui timeshift negative how to#
#Exiftool gui timeshift negative software#
#Exiftool gui timeshift negative windows#

Even zulu time isn't perfect: not well defined before 1960 and even then the question remains: how to deal with leap seconds? And as shown, local time poison gets in the way.

#Exiftool gui timeshift negative software#

At the end of the day, you can see why it's almost impossible for any OS to go back in the past and compute what TZ and DST were in force when an event occured in the past.ДЄbsolute time doesn't exist and every piece of software chooses it's starting point, e.g. The NTFS file system delays updates to the last access time for a file by up to 1 hour after the last access. For example, the resolution of create time on FAT is 10 milliseconds, while write time has a resolution of 2 seconds and access time has a resolution of 1 day, so it is really the access date. Not all file systems can record creation and last access times, and not all file systems record them in the same manner. The only guarantee about a file time stamp is that the file time is correctly reflected when the handle that makes the change is closed. Time stamps are updated at various times and for various reasons. For example, a file that is saved at 3:00pm PST in Washington is seen as 6:00pm EST in New York on an NTFS volume, but it is seen as 3:00pm EST in New York on a FAT volume. The FAT file system stores time values based on the local time of the computer. The NTFS file system stores time values in UTC format, so they are not affected by changes in time zone or daylight saving time. The system records file times when applications create, access, and write to files.

#Exiftool gui timeshift negative windows#

The page explains what a Windows filetime is:ДЄ file time is a 64-bit value that represents the number of 100-nanosecond intervals that have elapsed since 12:00 A.M.

Hence computing the correct TZ+DST in the past is a nightmare. Not only DST are changing over time due to political decisions based on thin air, they also change over places which decide (again due to 'administrative' reasons) to belong this side or the other side of a TZ boundary, which themselves are moved from times to times after 'international' consensus or disagreement.ДЇurthermore, OS versions evolving, they aren't always consistent: DOS file times are not consistent with current Windows versions. Unfortunately TZ+DST offsets are a huge can of worms. Toast - Small GUIs which pop out of the notification area StringSize - Automatically size controls to fit text Scrollbars -Automatically sized scrollbars with a single command Notify - Small notifications on the edge of the display NoFocusLines - Remove the dotted focus lines from buttons, sliders, radios and checkboxes GUITreeViewEx - Check/clear parent and child checkboxes in a TreeView GUIListViewEx - Insert, delete, move, drag, sort,В edit and colourВ ListView items GUIFrame - Subdivide GUIs into many adjustable frames GUIExtender - Extend and retract multiple sections within a GUI ArrayMultiColSort - Sort arrays on multiple columnsД¬hooseFileFolder - Single and multiple selections from specified path treeview listingДate_Time_Convert - Easily convert date/time formats, including the language usedД®xtMsgBox - AВ highly customisable replacement for MsgBox