[tz] Lack of "initial" transitions for some zones

[Howard Hinnant]

> On Jul 21, 2015, at 11:19 AM, Jon Skeet <skeet at pobox.com> wrote:
> 
> Given the existing caveats about "don't trust that values before 1970 are historically accurate" I think it's reasonable to simply assume standard time before then, isn't it? Having said that, WET and EET are somewhat interesting in that their first transitions are in 1977 - so after the "accuracy watershed" so to speak. That does complicate things somewhat.

I get:

WET
Initially:           +00:00:00 standard WET
1977-04-03T01:00:00Z +01:00:00 daylight WEST
1977-09-25T01:00:00Z +00:00:00 standard WET
1978-04-02T01:00:00Z +01:00:00 daylight WEST
…

and:

EET
Initially:           +02:00:00 standard EET
1977-04-03T01:00:00Z +03:00:00 daylight EEST
1977-09-25T01:00:00Z +02:00:00 standard EET
1978-04-02T01:00:00Z +03:00:00 daylight EEST
…

Howard