<div dir="ltr">Hi TZ friends - I'm one of the volunteers working on ECMAScript's time zone strategy.<div><br></div><div>We had a question: of all the legacy Zone names in TZDB, why have a few of them like "WET" and "EST5EDT" been retained as Zones, while the rest of the legacy names like "GB-Eire" and "Jamaica" have all been turned into Links pointing to some other Zone? What was special about the Zones below that caused them to stay as Zones?</div><div><br></div><div>EST<br>MST<br>HST<br>EST5EDT<br>CST6CDT<br>MST7MDT<br>PST8PDT<br>WET<br>CET<br>MET<br>EET</div><div><br></div><div><div>Regardless of the history behind these 11 Zone names, would there be interest in accepting a PR that turns these Zones into Links?</div></div><div><br></div><div>I'm asking because ECMAScript's time zone enumeration API is specified to only return Zone names, but ECMAScript implementations in Safari and Chrome have long omitted the Zones above from their enumeration API because they create redundant and confusing results for end users. We'd like to align the specification to web reality, and ideally make these changes upstream in TZDB (if that would be welcome). </div><div><br></div><div>Here's the mappings that we're currently considering in ECMAScript. We used the TZ approach of preferring the largest city for each of the DST-using legacy Zones. Although any other mappings would be OK with us, so let me know if you think there are more appropriate mappings. <br></div><div><br></div><div><table border="0" cellpadding="0" cellspacing="0" width="261" style="border-collapse:collapse;width:195pt;background-color:rgba(161,189,217,0.08)">
<colgroup><col width="87" span="3" style="width:65pt">
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<td height="21" width="87" style="height:16pt;width:65pt;box-sizing:border-box;min-width:48px;background-clip:padding-box;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">EST</td>
<td class="gmail-xl63" width="87" style="width:65pt;padding-top:1px;padding-right:1px;padding-left:1px;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">=></td>
<td width="87" style="width:65pt;box-sizing:border-box;min-width:48px;background-clip:padding-box;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">Etc/GMT+5</td>
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<tr height="21" style="height:16pt;box-sizing:border-box">
<td height="21" style="height:16pt;box-sizing:border-box;min-width:48px;background-clip:padding-box;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">MST</td>
<td class="gmail-xl63" style="padding-top:1px;padding-right:1px;padding-left:1px;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">=></td>
<td style="box-sizing:border-box;min-width:48px;background-clip:padding-box;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">Etc/GMT+7</td>
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<tr height="21" style="height:16pt;box-sizing:border-box">
<td height="21" style="height:16pt;box-sizing:border-box;min-width:48px;background-clip:padding-box;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">HST</td>
<td class="gmail-xl63" style="padding-top:1px;padding-right:1px;padding-left:1px;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">=></td>
<td style="box-sizing:border-box;min-width:48px;background-clip:padding-box;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">Etc/GMT+10</td>
</tr>
<tr height="21" style="height:16pt;box-sizing:border-box">
<td height="21" style="height:16pt;box-sizing:border-box;min-width:48px;background-clip:padding-box;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">EST5EDT</td>
<td class="gmail-xl63" style="padding-top:1px;padding-right:1px;padding-left:1px;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">=></td>
<td style="box-sizing:border-box;min-width:48px;background-clip:padding-box;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">America/New_York</td>
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<tr height="21" style="height:16pt;box-sizing:border-box">
<td height="21" style="height:16pt;box-sizing:border-box;min-width:48px;background-clip:padding-box;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">CST6CDT</td>
<td class="gmail-xl63" style="padding-top:1px;padding-right:1px;padding-left:1px;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">=></td>
<td style="box-sizing:border-box;min-width:48px;background-clip:padding-box;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">America/Chicago</td>
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<tr height="21" style="height:16pt;box-sizing:border-box">
<td height="21" style="height:16pt;box-sizing:border-box;min-width:48px;background-clip:padding-box;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">MST7MDT</td>
<td class="gmail-xl63" style="padding-top:1px;padding-right:1px;padding-left:1px;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">=></td>
<td style="box-sizing:border-box;min-width:48px;background-clip:padding-box;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">America/Denver</td>
</tr>
<tr height="21" style="height:16pt;box-sizing:border-box">
<td height="21" style="height:16pt;box-sizing:border-box;min-width:48px;background-clip:padding-box;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">PST8PDT</td>
<td class="gmail-xl63" style="padding-top:1px;padding-right:1px;padding-left:1px;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">=></td>
<td style="box-sizing:border-box;min-width:48px;background-clip:padding-box;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">America/Los_Angeles</td>
</tr>
<tr height="21" style="height:16pt;box-sizing:border-box">
<td height="21" style="height:16pt;box-sizing:border-box;min-width:48px;background-clip:padding-box;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">WET</td>
<td class="gmail-xl63" style="padding-top:1px;padding-right:1px;padding-left:1px;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">=></td>
<td style="box-sizing:border-box;min-width:48px;background-clip:padding-box;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">Europe/Lisbon</td>
</tr>
<tr height="21" style="height:16pt;box-sizing:border-box">
<td height="21" style="height:16pt;box-sizing:border-box;min-width:48px;background-clip:padding-box;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">CET</td>
<td class="gmail-xl63" style="padding-top:1px;padding-right:1px;padding-left:1px;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">=></td>
<td style="box-sizing:border-box;min-width:48px;background-clip:padding-box;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">Europe/Berlin</td>
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<tr height="21" style="height:16pt;box-sizing:border-box">
<td height="21" style="height:16pt;box-sizing:border-box;min-width:48px;background-clip:padding-box;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">MET</td>
<td class="gmail-xl63" style="padding-top:1px;padding-right:1px;padding-left:1px;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">=></td>
<td style="box-sizing:border-box;min-width:48px;background-clip:padding-box;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">Europe/Berlin</td>
</tr>
<tr height="21" style="height:16pt;box-sizing:border-box">
<td height="21" style="height:16pt;box-sizing:border-box;min-width:48px;background-clip:padding-box;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">EET</td>
<td class="gmail-xl63" style="padding-top:1px;padding-right:1px;padding-left:1px;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">=></td>
<td style="box-sizing:border-box;min-width:48px;background-clip:padding-box;color:black;font-size:12pt;font-family:"Aptos Narrow",sans-serif;vertical-align:bottom;border:none;white-space:nowrap">Europe/Kyiv</td>
</tr>
</tbody></table><br></div><div>Thanks,</div><div>Justin Grant</div><div><br></div></div>