private Microsoft.Office.Interop.Outlook.TimeZone WindowsTimeZone(string ianaZoneId)
{
Microsoft.Office.Interop.Outlook.TimeZones tzs = oApp.TimeZones;
var utcZones = new[] { "Etc/UTC", "Etc/UCT", "UTC", "Etc/GMT" };
if (utcZones.Contains(ianaZoneId, StringComparer.OrdinalIgnoreCase))
{
log.Fine("Timezone \"" + ianaZoneId + "\" mapped to \"UTC\"");
return(tzs["UTC"]);
}
var tzdbSource = NodaTime.TimeZones.TzdbDateTimeZoneSource.Default;
// resolve any link, since the CLDR doesn't necessarily use canonical IDs
var links = tzdbSource.CanonicalIdMap
.Where(x => x.Value.Equals(ianaZoneId, StringComparison.OrdinalIgnoreCase))
.Select(x => x.Key);
// resolve canonical zones, and include original zone as well
var possibleZones = tzdbSource.CanonicalIdMap.ContainsKey(ianaZoneId)
? links.Concat(new[] { tzdbSource.CanonicalIdMap[ianaZoneId], ianaZoneId })
: links;
// map the windows zone
var mappings = tzdbSource.WindowsMapping.MapZones;
var item = mappings.FirstOrDefault(x => x.TzdbIds.Any(possibleZones.Contains));
if (item == null)
{
throw new System.ApplicationException("Timezone \"" + ianaZoneId + "\" has no mapping.");
}
log.Fine("Timezone \"" + ianaZoneId + "\" mapped to \"" + item.WindowsId + "\"");
return(tzs[item.WindowsId]);
}
private Microsoft.Office.Interop.Outlook.TimeZone WindowsTimeZone(string ianaZoneId)
{
Microsoft.Office.Interop.Outlook.TimeZones tzs = oApp.TimeZones;
var utcZones = new[] { "Etc/UTC", "Etc/UCT" };
if (utcZones.Contains(ianaZoneId, StringComparer.OrdinalIgnoreCase))
{
log.Fine("Timezone \"" + ianaZoneId + "\" mapped to \"UTC\"");
return(tzs["UTC"]);
}
var tzdbSource = NodaTime.TimeZones.TzdbDateTimeZoneSource.Default;
// resolve any link, since the CLDR doesn't necessarily use canonical IDs
var links = tzdbSource.CanonicalIdMap
.Where(x => x.Value.Equals(ianaZoneId, StringComparison.OrdinalIgnoreCase))
.Select(x => x.Key);
var mappings = tzdbSource.WindowsMapping.MapZones;
var item = mappings.FirstOrDefault(x => x.TzdbIds.Any(links.Contains));
if (item == null)
{
log.Warn("Timezone \"" + ianaZoneId + "\" could not find a mapping");
return(null);
}
log.Fine("Timezone \"" + ianaZoneId + "\" mapped to \"" + item.WindowsId + "\"");
return(tzs[item.WindowsId]);
}