Poland, like most European countries, uses daylight saving time in summer being in the Central European Summer Time (CEST) zone (UTC+2h).
All Polish GSM operators use GSM 900/1800 network type. When calling from your mobile to a stationary phone in Serock use the +(48 22) prefix.
Emergency telephone numbers
General emergency: 112
Fire squad: 998
Medical first aid: 999
There is Wi-Fi network connection in the hotel rooms in the Pan Tadeusz Hotel accessible free of charge
to the hotel guests. There is also wireless network connection in the lecture and seminar halls.
Currency and credit cards
The currency unit in Poland is the Polish zloty (zl, code: PLN), which is subdivided into 100 grosze (gr). The current exchange rate of zloty, e.g., to Euro or US dollar, can be conveniently checked if PLN is selected as the Polish currency code. In October 2016, this rate was about 4.31 PLN for 1 EUR, 4.83 PLN for 1 GBP and 3.93 PLN for 1 USD.
You may change foreign currency and traveller's checks at several banks located in the city centers as well as in the money exchange offices located, e.g., at railway stations and airports. Major credit cards are accepted in most hotels, restaurants, and automatic cash machines.