function interact(event)
{
var open_today=0;
var hour_correct=0;

//what day and time?
var _d=event.block.world.getTempdata().get("day_of_week");
var _h=event.block.world.getTempdata().get("hour");

var whichday=1; //tuesday, unless...

if (_h==0 || _h==1 || _h==2) //it's after midnight.
  {
  whichday=2; //it's wednesday, since it's after midnight, bruv.
  }

open_today = (_d!=whichday); //closed on day 1, Tuesday, and that includes part of Wednesday night.
hour_correct = (_h==0 || _h==1 || _h==2 || _h>=17);

if (open_today==1 && hour_correct==1)
  {
  //welcome, everything's cool, use the door or w/e
  }
else
  if (open_today==0)
    {
    event.block.executeCommand('/tellraw @p {"text":"Lil` Nether Tavern is closed on Tuesdays. See you tomorrow."}');
    event.setCanceled(true);
    }
  else //we're open today, but it's the wrong time
    {
    event.block.executeCommand('/tellraw @p {"text":"Lil` Nether Tavern is closed now. Come back between 17:00 and 03:00, excl. Tuesday nights."}');
    event.setCanceled(true);
    }