Other people have requested that searches could involve opening times. I also think this would be nice. But, whether that comes or not, almost every POI pin that I make includes the opening hours (and days) of the POI. I think it would be very handy to have certain fields in the note part of the POI. Opening days and times would be very useful. Perhaps these field names could be chosen by the user since we each know what information is most important to us. Otherwise we keep repeating the same text entry over and over.