Europe/Rome. The standard UTC offset is UTC+1 in winter. During daylight saving time (summer), it becomes Central European Summer Time (CEST) at UTC+2.Europe/Rome. Use this string in programming languages and APIs: JavaScript (`new Intl.DateTimeFormat('en-US', { timeZone: 'Europe/Rome' })`), Python (`pytz.timezone('Europe/Rome')`), or any IANA-compatible library.