hour () gives back the timerange representing the
first or nth Hour of the called object.
Note that hours normally starts to count at zero,
so ->hour(2) gives the third hour within
the range.
An Hour is in the Calendar perspective as any other
time range not only 60 minutes, but also one
of the (normally) 24 hours of the day, precisely.
hours () give back an array of all the hours
containing the time periods called. With arguments,
it will give back a range of those hours, in the
same enumeration as the n to hour ().
number_of_hours () simple counts the
number of hours containing the called time period.
Note:
The called object doesn't have to
*fill* all the hours it will send back, it's
enough if it exist in those hours:
> object h=Calendar.Time.Hour();
Result: Hour(265567)
> h->hours();
Result: ({ /* 1 element */
Hour(265567)
})
> h+=Calendar.Time.Minute();
Result: Minute(265567:01+60m)
> h->hours();
Result: ({ /* 2 elements */
Hour(265567),
Hour(265568)
})