UTC4

UTC+04:00 is a time offset by four hours ahead of Coordinated Universal Time (UTC). It designates several time zones around the world and is commonly referred to by regional names such as Gulf Standard Time, Azerbaijan Standard Time, Georgia Standard Time, Armenia Time, Mauritius Standard Time, Seychelles Time, and Réunion Time.

Most countries using UTC+04:00 keep the offset year-round, not observing daylight saving time. Notable examples include the United Arab Emirates and Oman (Gulf Standard Time); Azerbaijan (AZT); Georgia (GET); Armenia (AMT); Mauritius (MUT); Seychelles (SCT); and Réunion (RET).

Geographically, UTC+04:00 covers parts of the Middle East, the Caucasus, and certain island nations in the Indian Ocean. The offset is used in everyday timekeeping, business scheduling, and international communication in these regions, and is represented in digital systems as +04:00 in calendars, software, and time zone databases such as the IANA tz database.

As with other UTC offsets, the practical use of UTC+04:00 can vary by country or territory’s historical practices, including past daylight saving time adjustments in some areas. Today, however, several jurisdictions maintain a fixed offset, aligning local time four hours ahead of UTC year-round.