CheckIsDst()

static bool System.TimeZoneInfo.CheckIsDst ( DateTime startTime, DateTime time, DateTime endTime, bool ignoreYearAdjustment, AdjustmentRule rule )

inlinestaticprivate

Definition at line 1840 of file TimeZoneInfo.cs.

    {
        if (!ignoreYearAdjustment && !rule.NoDaylightTransitions)
        {
            int year = startTime.Year;
            int year2 = endTime.Year;
            if (year != year2)
            {
                endTime = endTime.AddYears(year - year2);
            }
            int year3 = time.Year;
            if (year != year3)
            {
                time = time.AddYears(year - year3);
            }
        }
        if (startTime > endTime)
        {
            if (!(time < endTime))
            {
                return time >= startTime;
            }
            return true;
        }
        if (rule.NoDaylightTransitions)
        {
            if (time >= startTime)
            {
                return time <= endTime;
            }
            return false;
        }
        if (time >= startTime)
        {
            return time < endTime;
        }
        return false;
    }

References System.DateTime.AddYears(), System.Runtime.Serialization.Dictionary, System.DateTime.Year, and System.year.

Referenced by System.TimeZoneInfo.GetIsDaylightSavings(), and System.TimeZoneInfo.GetIsDaylightSavingsFromUtc().