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))); }