adding functions

Hi,

I've created a variable containing some functions in my intro page eg.

<<set $time={
    day=0,
    hour=7
}>>
<<set $misc={
    isMallOpen: function() {
        return ($time.hour lte 18);
    },
    haveSchool: function() {
        return ($time.day % 7 gt 0) && ($time.day % 7 lt 6) && ($time.hour lt 12);
    },
    canSleep: function() {
        return ($time.hour gt 15);
    },
    test: function() {
        return false;
    }
}>>\

with the plan to use them like this in other passages:

<<if $misc.canSleep>>[[Go to sleep]]<<endif>>

But, all the functions are returning true, or rather, all the if macros are treating $misc.<function> as true.

What am I doing wrong here? Or can I not create functions within objects like this?

Many thanks for your help.