file mtime name ?time?
Returns a decimal string giving the time at which file name was last modified. If time is specified, it is a modification time to set for the file (equivalent to Unix touch). The time is measured in the standard POSIX fashion as seconds from a fixed starting time (often January 1, 1970). If the file doesn't exist or its modified time cannot be queried or set then an error is generated.
LV Recently I was told by a Tcl programmer that they could not use file mtime on a Windows system because it didn't return the right value after DST took place.
I was surprised - I hadn't heard of that, and wasn't certain exactly what the implications of that might be. Is this something that experienced Windows programmers just know?
Some body know how set mtime with pure tcl code?
See also: