To Date Time from dmtf date : DateTimeFormatInfo « Date Time « C# / C Sharp

1. C# / C Sharp
2. Date Time
3. DateTimeFormatInfo

To Date Time from dmtf date

      

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;

namespace NetworkAssetManager.WMI
{
    class WMIUtil
    {

        public static DateTime ToDateTime(string dmtfDate)
        {
            DateTime initializer = DateTime.MinValue;
            int year = initializer.Year;
            int month = initializer.Month;
            int day = initializer.Day;
            int hour = initializer.Hour;
            int minute = initializer.Minute;
            int second = initializer.Second;
            long ticks = 0;
            string dmtf = dmtfDate;
            DateTime datetime = DateTime.MinValue;
            string tempString = string.Empty;
            if ((dmtf == null))
            {
                return DateTime.MinValue;
            }
            if ((dmtf.Length == 0))
            {
                return DateTime.MinValue;
            }
            if ((dmtf.Length != 25))
            {
                //return DateTime.MinValue;
            }
            try
            {
                tempString = dmtf.Substring(0, 4);
                if (("****" != tempString))
                {
                    year = int.Parse(tempString);
                }
                tempString = dmtf.Substring(4, 2);
                if (("**" != tempString))
                {
                    month = int.Parse(tempString);
                }
                tempString = dmtf.Substring(6, 2);
                if (("**" != tempString))
                {
                    day = int.Parse(tempString);
                }
                tempString = dmtf.Substring(8, 2);
                if (("**" != tempString))
                {
                    hour = int.Parse(tempString);
                }
                tempString = dmtf.Substring(10, 2);
                if (("**" != tempString))
                {
                    minute = int.Parse(tempString);
                }
                tempString = dmtf.Substring(12, 2);
                if (("**" != tempString))
                {
                    second = int.Parse(tempString);
                }
                tempString = dmtf.Substring(15, 6);
                if (("******" != tempString))
                {
                    ticks = (long.Parse(tempString) * ((long)((TimeSpan.TicksPerMillisecond / 1000))));
                }
                if (((((((((year < 0)
                            || (month < 0))
                            || (day < 0))
                            || (hour < 0))
                            || (minute < 0))
                            || (minute < 0))
                            || (second < 0))
                            || (ticks < 0)))
                {
                    return DateTime.MinValue;
                }
            }
            catch (Exception)
            {
                return DateTime.MinValue;
            }
            datetime = new DateTime(year, month, day, hour, minute, second, 0);
            datetime = datetime.AddTicks(ticks);
            TimeSpan tickOffset = TimeZone.CurrentTimeZone.GetUtcOffset(datetime);
            int UTCOffset = 0;
            int OffsetToBeAdjusted = 0;
            long OffsetMins = ((long)((tickOffset.Ticks / TimeSpan.TicksPerMinute)));
            tempString = dmtf.Substring(22, 3);
            if ((tempString != "******"))
            {
                tempString = dmtf.Substring(21, 4);
                try
                {
                    UTCOffset = int.Parse(tempString);
                }
                catch (Exception)
                {
//HACK: (2009/08/06) Sometimes the UTC info in not proper so set UTC to 0 in such cases 
                    UTCOffset = 0; 
                    //return DateTime.MinValue;
                }
                OffsetToBeAdjusted = ((int)((OffsetMins - UTCOffset)));
                datetime = datetime.AddMinutes(((double)(OffsetToBeAdjusted)));
            }
            return datetime;
        }
    }
}

   
    
    
    
    
    
  

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