On 9/19/22 07:21, Steffen Nurpmeso via tz wrote:
I strongly recommend to document that option as well as making !zone1970 the default,_or_ being more verbose and show both saying something along the lines "shares timezone information with" or what.
Currently by default, a tzselect user who chooses Vietnam is given two choices, and can pick either zone appropriate for Vietnam since 1970. Unfortunately tzselect will have glitches if an installer uses non-default installation options such as PACKRATDATA but fixing that would take more work than I expect any of us can spare. I haven't documented tzselect's -t option, since it can be glitchy. But if it's documented as being glitchy/experimental/whatever I suppose that would be OK. Any such documentation should be in both the man page and the --help output. I suspect that the complexity of making tzselect be more verbose (to let users choose -t interactively?) would cost users more than it would benefit; after all, tzselect is already pretty complicated (which is my fault of course). But perhaps I'm wrong and someone could implement something nicely.