Use the gettime method of Javascript to obtain the time

Javascript gettime method definition and usage

The getTime () method returns the number of milliseconds from January 1, January 1, 1970.

Ticks in C #

The value of this attribute indicates the number of intervals between January 1, 0001 nanoseconds that have elapsed since midnight, January 1, 100.

For a few words, the nanoseconds are also called microseconds. The Conversion Relationship between them is

1 second = 10 ^ 3 ms

1 millisecond = 10 ^ 3 microseconds

1 microsecond = 10 ^ 3 nanoseconds

Now we need to use c # To make this js gettimer effect. First, we need to convert it into a unified unit, and we will convert it into a hundred S.

The next step is to achieve a unified time point, starting from January 1, January 1, 1970. Then, we need to calculate how many nanoseconds have elapsed since January 1, January 1-19, 0001 to January 1, January 1.

The following code shows the constant privatelonglLeft = 621355968000000000;

 
 

  
  
Console.WriteLine(DateTime.Parse("1970-1-1").Ticks); 
 
 

For example, I want to get the number of milliseconds for "2009-7-1508: 33: 19 ".
First convert to UTC time

 
 

  
  
DateTimedt1=Convert.ToDateTime("2009-7-1508:33:19").ToUniversalTime(); 
 
 

Then we can get the number of hundred seconds from January 1, January 1, 1970 to that time.
LongSticks = (dt1.Ticks-DateTime. Parse ("1970-1-1"). Ticks)

The final result is to convert the result to js, so the second is converted to millisecond, Sticks/10000000; the final result is 1247617999.

Similarly, if we convert the number of milliseconds to the local time, we will return it. The difference between Beijing and utc is 8 hours. Therefore, we can use ToLocalTime to convert it to the local time to solve the time difference problem.

The following is the Javascript gettime code.

 
 

  
  
PrivatelonglLeft=621355968000000000;
  
  
// Convert the number to time
  
  
PublicstringGetTimeFromInt (longltime)
  
  
{
  
  
LongEticks= (Long) (ltime * 10000000) + lLeft;
  
  
DateTimedt=NewDateTime(Eticks). ToLocalTime ();
  
  
Returndt. ToString ();
  
  
}
  
  
// Convert the time to a number
  
  
PubliclongGetIntFromTime (DateTimedt)
  
  
{
  
  
DateTimedt1= Dt. ToUniversalTime ();
  
  
LongSticks= (Dt1.Ticks-lLeft)/10000000;
  
  
ReturnSticks;
  
  
}
 
 

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