GetAmbiguousTimeOffsets() [1/2]

TimeSpan[] System.TimeZoneInfo.GetAmbiguousTimeOffsets ( DateTime dateTime )

inline

Definition at line 1015 of file TimeZoneInfo.cs.

    {
        if (!SupportsDaylightSavingTime)
        {
            throw new ArgumentException(SR.Argument_DateTimeIsNotAmbiguous, "dateTime");
        }
        DateTime dateTime2;
        if (dateTime.Kind == DateTimeKind.Local)
        {
            CachedData cachedData = s_cachedData;
            dateTime2 = ConvertTime(dateTime, cachedData.Local, this, TimeZoneInfoOptions.None, cachedData);
        }
        else if (dateTime.Kind == DateTimeKind.Utc)
        {
            CachedData cachedData2 = s_cachedData;
            dateTime2 = ConvertTime(dateTime, s_utcTimeZone, this, TimeZoneInfoOptions.None, cachedData2);
        }
        else
        {
            dateTime2 = dateTime;
        }
        bool flag = false;
        int? ruleIndex;
        AdjustmentRule adjustmentRuleForAmbiguousOffsets = GetAdjustmentRuleForAmbiguousOffsets(dateTime2, out ruleIndex);
        if (adjustmentRuleForAmbiguousOffsets != null && adjustmentRuleForAmbiguousOffsets.HasDaylightSaving)
        {
            DaylightTimeStruct daylightTime = GetDaylightTime(dateTime2.Year, adjustmentRuleForAmbiguousOffsets, ruleIndex);
            flag = GetIsAmbiguousTime(dateTime2, adjustmentRuleForAmbiguousOffsets, daylightTime);
        }
        if (!flag)
        {
            throw new ArgumentException(SR.Argument_DateTimeIsNotAmbiguous, "dateTime");
        }
        TimeSpan[] array = new TimeSpan[2];
        TimeSpan timeSpan = _baseUtcOffset + adjustmentRuleForAmbiguousOffsets.BaseUtcOffsetDelta;
        if (adjustmentRuleForAmbiguousOffsets.DaylightDelta > TimeSpan.Zero)
        {
            array[0] = timeSpan;
            array[1] = timeSpan + adjustmentRuleForAmbiguousOffsets.DaylightDelta;
        }
        else
        {
            array[0] = timeSpan + adjustmentRuleForAmbiguousOffsets.DaylightDelta;
            array[1] = timeSpan;
        }
        return array;
    }

References System.TimeZoneInfo._baseUtcOffset, System.SR.Argument_DateTimeIsNotAmbiguous, System.array, System.TimeZoneInfo.ConvertTime(), System.Runtime.Serialization.Dictionary, System.TimeZoneInfo.GetAdjustmentRuleForAmbiguousOffsets(), System.TimeZoneInfo.GetDaylightTime(), System.TimeZoneInfo.GetIsAmbiguousTime(), System.TimeZoneInfo.s_cachedData, System.TimeZoneInfo.s_utcTimeZone, System.TimeZoneInfo.SupportsDaylightSavingTime, and System.TimeSpan.Zero.