TZAdjust IconTZAdjust, one of our freeware products, is a legacy era utility we created for users who need to make manual changes to the time zone and 'day light savings' offset parameters for their Windows XP and above computers.

Background: Windows automatically returns file time information as an offset from Greenwich Mean Time (GMT) and automatically makes Daylight Savings compensations when reporting file times.

We recommend that Windows 10 users go to Settings -> Time & Language -> Time & Date Time as the first step for checking and/or changing time zone and automatic daylight savings compensation. Search for 'How to set your time and time zone' for more information.

We strongly recommend that users use the default Windows time zone and daylight saving settings. However, if you have an older operating system or have a specific need to make changes manually, TZ Adjust can be used to disable "Automatically Adjust for Daylight Savings" entirely or modify the offset used.

TZAdjust is compatible with Windows Vista, Windows 7, Windows 8, & Windows 10.

See License Statements for the EULA agreement for TZAdjust.

TZAjust Main Dialog
TZAdjust Screenshot


TZ Adjust Download (Version 1.0 -120K) - Unzip this to the subdirectory of your choice. We recommend using c:\tools\TZAdjust although any path will do. See 'Install.txt' and 'ReadMe.txt' in the distribution for more information.

Additional Information

License Statement - See EULA Statement (End User License Agreement)