How specific would you like it?
You could say..
Code:
if (Hour() == 5 && Minute() == 30)
{
...
}
or how about a 3 minute window?
Code:
if (Hour() == 5 && MathAbs(Minute() - 30 ) < 3)
{
...
}
You could also add Seconds() to the code, but I think that would be too restrictive since an EA only runs once per tick and you don't know when that tick will occur (during the slow times it may be awhile...)