[tz] Issue with EST timezone

[Guy Harris]

On May 7, 2019, at 12:29 PM, Matt Johnson <mj1856 at hotmail.com> wrote:

> I added the status column awhile back to encourage people to use the Area/Locality forms of names instead of the older ones.  I just added some additional notes to the ones Manjusri cited to suggest alternatives.

It now also notes that EST, MST, and HST do *not* have DST, so they shouldn't be used as synonyms for "Eastern time", "Mountain time", or "Hawaii time" unless you're in a location that doesn't observe DST.  E.g., EST currently applies to Quintana Roo but not to, for example, any location in the US or Canada, and MST currently applies to most of Arizona but not the rest of the Mountain time zone (HST currently applies to the Hawaii time zone).