_D

Convert millisecond timestamp or Date object to time string.

    
    
    
_D()

    
    
    
_D(timestamp)

    
    
    
_D(timestamp, fmt)

Examples

• Get and print current time string:

  • javascript
  • python
  • cpp

  
      javascript
      
      
  function main(){
      var time = _D()
      Log(time)
  }
  

  
      python
      
      
  def main():
      strTime = _D()
      Log(strTime)
  

  
      c++
      
      
  void main() {
      auto strTime = _D();
      Log(strTime);
  }
  

• Timestamp is 1574993606000, convert using code:

  • javascript
  • python
  • cpp

  
      javascript
      
      
  function main() {
      Log(_D(1574993606000))
  }
  

  
      python
      
      
  def main():
      # Running on Beijing time server: 2019-11-29 10:13:26, running this code on a docker on another regional server results in: 2019-11-29 02:13:26
      Log(_D(1574993606))
  

  
      c++
      
      
  void main() {
      Log(_D(1574993606000));
  }
  

• Use parameter fmt for formatting. Format strings differ between JavaScript, Python, and C++ languages. See the following examples for details:

  • javascript
  • python
  • cpp

  
      javascript
      
      
  function main() {
      Log(_D(1574993606000, "yyyy--MM--dd hh--mm--ss"))   // 2019--11--29 10--13--26
  }
  

  
      python
      
      
  def main():
      # 1574993606 is a second-level timestamp
      Log(_D(1574993606, "%Y--%m--%d %H--%M--%S"))        #  2019--11--29 10--13--26
  

  
      c++
      
      
  void main() {
      Log(_D(1574993606000, "%Y--%m--%d %H--%M--%S"));   // 2019--11--29 10--13--26
  }
  

Returns

Arguments

See Also

Remarks

Returns current time string when no parameters are passed. When using _D() function in Python strategies, note that the parameter passed should be a second-level timestamp (JavaScript and C++ strategies use millisecond-level timestamps, 1 second equals 1000 milliseconds). When using _D() function in live trading environment to parse timestamps into readable time strings, pay attention to the timezone and time settings of the operating system where the docker is located. The _D() function parses timestamps into readable time strings based on the local time of the docker system.