library-ts/browser/date/Duration.ts

export class Duration
{
  static toMilliSeconds( duration:number )
  {
    return duration * 1000;
  }

  static fromMilliSeconds( duration:number )
  {
    return duration / 1000;
  }

  static toMinutes( duration:number )
  {
    return duration / 60;
  }

  static fromMinutes( minutes:number )
  {
    return minutes * 60;
  }

  static toHours( duration:number )
  {
    return this.toMinutes( duration ) / 60;
  }

  static fromHours( hours:number )
  {
    return this.fromMinutes( hours * 60 );
  }

  static toDays( duration:number )
  {
    return this.toHours( duration ) / 24;
  }

  static fromDays( days:number )
  {
    return this.fromHours( days * 24 );
  }
}