The time zone corresponds to GMT-3 and currently no change is made in the summer months. Activity in Buenos Aires starts in the first hours of the day and extends until late at night. This city has lost the habit of siesta – a nap after midday -, which is still the custom in the interior parts of the country.
Shops: Most are open Monday through Friday, from 9 am to 8 pm, and Saturday from 9 am to 1 pm; however, shops located in important avenues are also open on Saturday afternoon. In shopping centers, hours usually extend until 10 pm, including Saturday and Sunday.
Banks: Almost all banks open at 10 am and close at 3 pm, although some banks extend their closing time to 4 pm. Cash extractions and other transactions may be made in ATMs, 24 hours a day. The tourist subsidiary of Banco Ciudad offers this possibility to the tourist.
You can purchase and sell dollars, euros and traveler checks in a broader hour range: Tuesdays to Fridays from 10 am to 5 pm; Saturdays and Sundays from 11 am to 6 pm; and Mondays from 10 am to 6 pm. Cashiers are tourist exclusive. It is a requirement to have your passport on hand. Subsidiary 53, Córdoba 675, Capital City.
Meals: The hours in which porteños have their four meals are variable, since they are accommodated according to their activities. Breakfast is served between 7 and 10 in the morning. In coffee houses and confiterías (pastry shops), it is possible to find special offers for the typical coffee and milk with medialunas (croissants), both for breakfast and merienda (tea) time.