[[... [clock] ...]]

"The current set of places where it will try to find Olson files is:

    /usr/share/zoneinfo
    /user/share/lib/zoneinfo
    /user/lib/zoneinfo
    /user/local/etc/zoneinfo
    C:/Progra~1/cygwin/usr/local/etc/zoneinfo

That's what's done if a search for a [Tcl] time zone definition in '''$tcl_library/tzdata''' fails.

In addition, the set of hardcoded time zone names in '''::tcl::clock::LegacyTimeZone''' is recognized, as is any Posix
time zone specifier, and the special name 'localtime'."


"...'localtime' is not recommended ..."