Multiply TimeSpan in .NET

Question

How do I multiply a TimeSpan object in C#? Assuming the variable duration is a TimeSpan, I would like, for example

duration*5 

But that gives me an error "operator * cannot be applied to types TimeSpan and int". Here's my current workaround

duration+duration+duration+duration+duration 

But this doesn't extend to non-integer multiples, eg. duration * 3.5

Answer 1

From this article

TimeSpan duration = TimeSpan.FromMinutes(1); duration = TimeSpan.FromTicks(duration.Ticks * 12); Console.WriteLine(duration);      

Answer 2

For those wishing to copy and paste:

namespace Utility {     public static class TimeSpanExtension     {         /// <summary>         /// Multiplies a timespan by an integer value         /// </summary>         public static TimeSpan Multiply(this TimeSpan multiplicand, int multiplier)         {             return TimeSpan.FromTicks(multiplicand.Ticks * multiplier);         }          /// <summary>         /// Multiplies a timespan by a double value         /// </summary>         public static TimeSpan Multiply(this TimeSpan multiplicand, double multiplier)         {             return TimeSpan.FromTicks((long)(multiplicand.Ticks * multiplier));         }     } } 

Example Usage:

using Utility;  private static void Example() {     TimeSpan t = TimeSpan.FromSeconds(30).Multiply(5); } 

t will end up as 150 seconds.