void main()
{
    object user = GetLastUsedBy();
    if (user != OBJECT_INVALID) {
        int can_see = TRUE;

        if (GetHasSpellEffect(SPELL_DARKNESS, user))
            can_see = FALSE;
        if (GetHasSpellEffect(SPELL_DARKNESS, OBJECT_SELF))
            can_see = FALSE;
        if (GetHasSpellEffect(SPELL_BLINDNESS_AND_DEAFNESS, user))
            can_see = FALSE;
        if (GetHasSpellEffect(SPELL_MASS_BLINDNESS_AND_DEAFNESS, user))
            can_see = FALSE;

        if (!can_see) {
            ActionSpeakString("You can not see the sundial...");
            return;
        }
    }

    string hour = IntToString(GetTimeHour());
    string minute = IntToString(GetTimeMinute());

    if (GetStringLength(minute) < 2)
        minute = "0" + minute;

    string sunphase = "neither day, dusk, night or dawn...";
    if (GetIsDay()) {
        sunphase = "day";
    } else if (GetIsDawn()) {
        sunphase = "dawn";
    } else if (GetIsDusk()) {
        sunphase = "dusk";
    } else if (GetIsNight()) {
        sunphase = "night";

        // A sundial doesn't work during the night.
        // When under the effect of a light spell, we'll make it work
        if (GetHasSpellEffect(SPELL_LIGHT)) {
            ActionSpeakString("A light spell iluminates the sundial. Strange, but it even shows the right time...");
            ActionWait(4.0);
        } else if (GetHasSpellEffect(SPELL_SUNBEAM)) {
            ActionSpeakString("A sunbeam shines on the sundial, making it show the time...");
            ActionWait(4.0);
        } else {
            ActionSpeakString("A sundial doesn't work during the night...");
            return;
        }
    }

    ActionSpeakString("The time is " + hour + ":" + minute);
    ActionWait(4.0);
    ActionSpeakString("This means that it is now " + sunphase);
}