Generally, shops open around 9:00 or 9:30 am and close for lunch at 12:30 pm or 1:00 pm, except food shops and markets, which are in business from 8:00 am. In the afternoon, stores are open from 3:30 pm to 7:30 pm in winter, and 4:00 pm to 8:00 pm in summer. In Venice, many stores that targets tourists, are open all day even on Sundays.
The best time for finding bargains is during the January and July sales. Look out for window signs with the words saldi or sconti.