Function getSupportedTimezones

apps/sim/lib/core/utils/timezone.ts:33–39

()

 * falls back to a curated common set on runtimes without `Intl.supportedValuesOf`.
 */
export function getSupportedTimezones(): string[] {
  const zones =
    typeof Intl.supportedValuesOf === 'function'
      ? Intl.supportedValuesOf('timeZone')
      : COMMON_TIMEZONES
  return zones.includes('UTC') ? zones : ['UTC', ...zones]
}

/** A timezone choice for a picker: the canonical IANA value plus a display label. */
export interface TimezoneOption {