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feat(ui): expand timezone dropdowns to cover all populated UTC offsets

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Replaced the 8 US-centric timezone options with 24 entries covering
every populated UTC offset worldwide (UTC-10 through UTC+12). Each
option is labeled by regional name with UTC offset in parentheses,
e.g. 'Central European (UTC+1/+2)'. DST-shifting zones show both
standard and daylight offsets.

Covers: Hawaii, Alaska, Pacific, Mountain, Mountain-no DST, Central,
Eastern, Brasilia, British, Central European, Eastern European,
Moscow, Iran, Gulf, Pakistan, India, Bangladesh, Indochina, China,
Japan/Korea, Australian Central, Australian Eastern, New Zealand.

Backend already validates all IANA zones via time.LoadLocation(), so
users with uncommon zones can still set them via the API.

Updated in three locations:
- templates/profile_form.templ (user profile dropdown)
- templates/admin_settings.templ (admin settings dropdown)
- internal/handlers/sidecar.go (HTMX save response HTML)
This commit is contained in:
john-okeefe
2026-04-29 20:47:11 -04:00
parent 7534d7c30a
commit 19a85a3390
5 changed files with 461 additions and 77 deletions
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internal/handlers/sidecar.go
+46 -14
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@@ -465,14 +465,30 @@ func (h *SidecarHandler) UpdateSystemConfiguration(c *echo.Context) error {
<div>
<label class="block text-sm font-medium mb-2" style="color: var(--text-primary)">Default Timezone</label>
<select name="default_timezone" id="default_timezone" class="w-full px-4 py-2 rounded-lg border" style="background-color: var(--bg-primary); color: var(--text-primary); border-color: var(--border);">
<option value="UTC"%s>UTC (Coordinated Universal Time)</option>
<option value="America/New_York"%s>Eastern Time</option>
<option value="America/Chicago"%s>Central Time</option>
<option value="America/Denver"%s>Mountain Time</option>
<option value="America/Los_Angeles"%s>Pacific Time</option>
<option value="America/Phoenix"%s>Mountain Time (no DST)</option>
<option value="America/Anchorage"%s>Alaska Time</option>
<option value="Pacific/Honolulu"%s>Hawaii Time</option>
<option value="UTC"%s>UTC (UTC+0)</option>
<option value="Pacific/Honolulu"%s>Hawaii (UTC-10)</option>
<option value="America/Anchorage"%s>Alaska (UTC-9/-8)</option>
<option value="America/Los_Angeles"%s>Pacific (UTC-8/-7)</option>
<option value="America/Denver"%s>Mountain (UTC-7/-6)</option>
<option value="America/Phoenix"%s>Mountain - no DST (UTC-7)</option>
<option value="America/Chicago"%s>Central (UTC-6/-5)</option>
<option value="America/New_York"%s>Eastern (UTC-5/-4)</option>
<option value="America/Sao_Paulo"%s>Brasilia (UTC-3/-2)</option>
<option value="Europe/London"%s>British (UTC+0/+1)</option>
<option value="Europe/Paris"%s>Central European (UTC+1/+2)</option>
<option value="Europe/Helsinki"%s>Eastern European (UTC+2/+3)</option>
<option value="Europe/Moscow"%s>Moscow (UTC+3)</option>
<option value="Asia/Tehran"%s>Iran (UTC+3:30)</option>
<option value="Asia/Dubai"%s>Gulf (UTC+4)</option>
<option value="Asia/Karachi"%s>Pakistan (UTC+5)</option>
<option value="Asia/Kolkata"%s>India (UTC+5:30)</option>
<option value="Asia/Dhaka"%s>Bangladesh (UTC+6)</option>
<option value="Asia/Bangkok"%s>Indochina (UTC+7)</option>
<option value="Asia/Shanghai"%s>China (UTC+8)</option>
<option value="Asia/Tokyo"%s>Japan/Korea (UTC+9)</option>
<option value="Australia/Darwin"%s>Australian Central (UTC+9:30)</option>
<option value="Australia/Sydney"%s>Australian Eastern (UTC+10/+11)</option>
<option value="Pacific/Auckland"%s>New Zealand (UTC+12/+13)</option>
</select>
<p class="text-sm mt-1" style="color: var(--text-secondary)">Default timezone for users who haven't set their own.</p>
</div>
@@ -494,13 +510,29 @@ func (h *SidecarHandler) UpdateSystemConfiguration(c *echo.Context) error {
</div>
`, baseURL.Value,
selectedAttr(defaultTimezone, "UTC"),
selectedAttr(defaultTimezone, "America/New_York"),
selectedAttr(defaultTimezone, "America/Chicago"),
selectedAttr(defaultTimezone, "America/Denver"),
selectedAttr(defaultTimezone, "America/Los_Angeles"),
selectedAttr(defaultTimezone, "America/Phoenix"),
selectedAttr(defaultTimezone, "America/Anchorage"),
selectedAttr(defaultTimezone, "Pacific/Honolulu"),
selectedAttr(defaultTimezone, "America/Anchorage"),
selectedAttr(defaultTimezone, "America/Los_Angeles"),
selectedAttr(defaultTimezone, "America/Denver"),
selectedAttr(defaultTimezone, "America/Phoenix"),
selectedAttr(defaultTimezone, "America/Chicago"),
selectedAttr(defaultTimezone, "America/New_York"),
selectedAttr(defaultTimezone, "America/Sao_Paulo"),
selectedAttr(defaultTimezone, "Europe/London"),
selectedAttr(defaultTimezone, "Europe/Paris"),
selectedAttr(defaultTimezone, "Europe/Helsinki"),
selectedAttr(defaultTimezone, "Europe/Moscow"),
selectedAttr(defaultTimezone, "Asia/Tehran"),
selectedAttr(defaultTimezone, "Asia/Dubai"),
selectedAttr(defaultTimezone, "Asia/Karachi"),
selectedAttr(defaultTimezone, "Asia/Kolkata"),
selectedAttr(defaultTimezone, "Asia/Dhaka"),
selectedAttr(defaultTimezone, "Asia/Bangkok"),
selectedAttr(defaultTimezone, "Asia/Shanghai"),
selectedAttr(defaultTimezone, "Asia/Tokyo"),
selectedAttr(defaultTimezone, "Australia/Darwin"),
selectedAttr(defaultTimezone, "Australia/Sydney"),
selectedAttr(defaultTimezone, "Pacific/Auckland"),
baseURL.Value, baseURL.Value, baseURL.Value))
}