Sometimes you might have files with wrong modification time and you don't know how to fix it.
The method below helps to give a file current modification time. On any platform you need to open command line/terminal and apply the following command:
copy /b *+,,
Instead of "*" you need to put file name and path to that file, for example:
C:\Users\user\Desktop\wgety\1>copy /b C:\Users\user\Desktop\wgety\1\jira.txt+,,
Linux, Mac, Freebsd, NAS: