Romania's currency is the Romanian Leu (RON); euros are not widely accepted outside tourist areas, so it is worth exchanging currency on arrival or carrying Romanian Leu for day-to-day use. Tap water is generally safe in cities but we recommend bottled water in rural areas and smaller villages. Tipping is customary in Romania — a modest gratuity for guides, drivers and restaurant staff is appreciated and expected. Connectivity is generally good in cities and larger towns, though rural guesthouses in the Danube Delta and Bucovina villages may have limited or no mobile signal. Romania uses the Eastern European Time zone (EET, UTC+2), with clocks moving to summer time (EEST, UTC+3) between late March and late October.