UTC format Conversion & hexadecimal conversion to decimal

convert UTC to GMT format:

 /// <summary>        ///conversion of UTC format to Datatime/// </summary>        /// <param name= "UTC" ></param>        /// <returns></returns>         PublicDateTime Convertintdatetime (DoubleUTC) {System.DateTime StartTime= TimeZone.CurrentTimeZone.ToLocalTime (NewSystem.DateTime (1970,1,1)); StartTime=Starttime.addseconds (UTC); StartTime= Starttime.addhours (8);//Convert to Beijing time (Beijing time =UTC time + 8 hours)            returnStartTime; } 

hexadecimal conversion to decimal:

 /// <summary>        ///hexadecimal conversion to decimal/// </summary>        /// <param name= "Strcolorvalue" ></param>        /// <returns></returns>         Public  intGethexadecimalvalue (String strcolorvalue) {Char[] Nums =Strcolorvalue.tochararray (); intTotal =0; Try            {                 for(inti =0; I < Nums. Length; i++) {String strnum=Nums[i]. ToString ().                    ToUpper (); Switch(strnum) { Case "A": Strnum="Ten";  Break;  Case "B": Strnum=" One";  Break;  Case "C": Strnum=" A";  Break;  Case "D": Strnum=" -";  Break;  Case "E": Strnum=" -";  Break;  Case "F": Strnum=" the";  Break; default:                             Break; }                    DoublePower = Math.pow ( -, Convert.todouble (nums. Length-i-1)); Total+ = Convert.ToInt32 (strnum) *Convert.ToInt32 (Power); }            }            Catch(System.Exception ex) {String Strerorr=Ex.                ToString (); return 0; }            returnTotal ; } 

UTC format Conversion & hexadecimal conversion to decimal