internal static ExDateTime?GetNormalizedTime(PropertyBag.BasicPropertyStore propertyBag, GuidIdPropertyDefinition utcTimeProperty, PropertyTagPropertyDefinition legacyUtcTimeProperty)
{
ExDateTime?valueAsNullable = propertyBag.GetValueAsNullable <ExDateTime>(utcTimeProperty);
if (valueAsNullable == null)
{
if (legacyUtcTimeProperty != null)
{
valueAsNullable = propertyBag.GetValueAsNullable <ExDateTime>(legacyUtcTimeProperty);
}
if (valueAsNullable == null)
{
return(null);
}
}
ExDateTime exDateTime = ExTimeZone.UtcTimeZone.ConvertDateTime(valueAsNullable.Value);
byte[] valueOrDefault = propertyBag.GetValueOrDefault <byte[]>(InternalSchema.TimeZoneDefinitionStart);
ExTimeZone legacyTimeZone;
if (O12TimeZoneFormatter.TryParseTimeZoneBlob(valueOrDefault, string.Empty, out legacyTimeZone))
{
exDateTime = TimeZoneHelper.NormalizeUtcTime(exDateTime, legacyTimeZone);
}
exDateTime = StartTimeProperty.DynamicAdjustForAllDayEvent(propertyBag, exDateTime, utcTimeProperty == InternalSchema.MapiEndTime);
return(new ExDateTime?(propertyBag.TimeZone.ConvertDateTime(exDateTime)));
}