C# 计算DataTime的4种时间差的方法(相差天数、相差小时、相差分钟、相差秒)

1、相差秒

public double DiffSeconds(DateTime startTime,DateTime endTime){
   TimeSpan secondSpan=new TimeSpan(endTime.Ticks-startTime.Ticks);
   return secondSpand.TotalSeconds;
}

 2、相差分钟

public double DiffMinutes(DateTime startTime,DateTime endTime){
   TimeSpan minuteSpan=new TimeSpan(endTime.Ticks-startTime.Ticks);
   return minuteSpan.TotalMinutes;
}

3、相差小时

public double DiffHours(DateTime startTime,DateTime endTime){
   TimeSpan hoursSpan=new TimeSpan(endTime.Ticks-startTime.Ticks);
   return hoursSpan.TotalHours;
}

4、相差天数

public double DiffDays(DateTime startTime,DateTime endTime){
   TimeSpan daysSpan=new TimeSpan(endTime.Ticks-startTime.Ticks);
   return daysSpan.TotalDays;
}

public int DiffDays(DateTime startTime,DateTime endTime){
   TimeSpan daysSpan=new TimeSpan(endTime.Ticks-startTime.Ticks);
   return daysSpan.Days;
}

来源：https://blog.csdn.net/qq_38974638/article/details/108536579