public static TimeTI Diff(TimeTI first, TimeTI second)
{
if (first.Hours < second.Hours)
{
var temp = first;
first = second;
second = temp;
}
var hours = first.Hours - second.Hours;
var minutes = first.Minutes - second.Minutes;
var seconds = first.Seconds - second.Seconds;
while (seconds < 0)
{
seconds += 60;
minutes -= 1;
}
while (minutes < 0)
{
minutes += 60;
hours -= 1;
}
while (hours < 0)
{
hours += 23;
}
return(new TimeTI(hours, minutes, seconds));
}
public static TimeTI Sum(TimeTI first, TimeTI second)
{
var sec = first.Seconds + second.Seconds;
var min = 0;
var hour = 0;
while (sec >= 60)
{
min += 1;
sec -= 60;
}
min += first.Minutes + second.Minutes;
while (min >= 60)
{
hour += 1;
min -= 60;
}
hour += first.Hours + second.Hours;
while (hour > 23)
{
hour -= 23;
}
return(new TimeTI(hour, min, sec));
}
public void Sub(TimeTI time)
{
var res = Diff(this, time);
Hours = res.Hours;
Minutes = res.Minutes;
Seconds = res.Seconds;
}
public void Add(TimeTI time)
{
var res = Sum(this, time);
Hours = res.Hours;
Minutes = res.Minutes;
Seconds = res.Seconds;
}