Europe/Riga. The UTC offset is UTC+2 in winter (standard time) and UTC+3 during daylight saving time (summer).Europe/Riga. Use this string in programming languages and APIs: JavaScript (`new Intl.DateTimeFormat('en-US', { timeZone: 'Europe/Riga' })`), Python (`pytz.timezone('Europe/Riga')`), or any IANA-compatible library.