This is a Go program to change the system time on your Windows computer.
Example Usage
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inctime 5h Add 5 hours to the current system time.
inctime -5h Subtract 5 hours from the current system time.
inctime 24h Add a day to the current system time.
inctime 5h4m3s Add 5 hours, 4 minutes and 3 seconds to the current system time.
Supported suffixes are h (hours), m (minutes), s (seconds) and ms (milliseconds).
The program will ask for administrator privileges to be able to change the time setting. Regular programs cannot change the system time on Windows.
Installation
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You need the Go programming language installed: https://golang.org/
Use the go tool to get the program:
go get -u -ldflags="-H=windowsgui" github.com/gonutz/inctime
where -u is for getting the latest version online and -ldflags="-H=windowsgui" has Go build a Windows GUI program which does not open a console window if started from the "Run" dialog (Windows Key + R).