Riddle

You have a clock that in your house that chimes the time on each hour & once on each half hour.


As you walk into the house you hear the clock chime once.

Half an hour later you hear the clock chime once.

After another half hour you hear the clock chime once.

After another half hour you hear the clock chime once.

Half an hour later you leave the house and hear the clock chime once as you are walking out of the door.

What time was it when you walked into the house?