Current UTC offsets for every timezone worldwide.
What is UTC?
UTC (Coordinated Universal Time) is the global time standard. All other timezones are expressed as offsets from UTC — for example UTC+8 means 8 hours ahead of UTC, and UTC-5 means 5 hours behind. WorldClock.International shows live offsets that automatically adjust for daylight saving time.
Frequently Asked Questions
What is UTC?+
UTC (Coordinated Universal Time) is the primary time standard by which the world regulates clocks and time. It is effectively the successor to Greenwich Mean Time (GMT) and does not observe daylight saving time.
What does UTC offset mean?+
A UTC offset is the difference in hours and minutes between a timezone and UTC. For example UTC+8 means 8 hours ahead of UTC, and UTC-5 means 5 hours behind UTC.
Why do UTC offsets change throughout the year?+
Many countries observe daylight saving time, which shifts clocks forward by one hour in summer. This changes their UTC offset — for example the UK goes from UTC+0 (GMT) in winter to UTC+1 (BST) in summer.
What is the difference between UTC and GMT?+
Technically UTC and GMT are not the same, but for everyday purposes they are equivalent — both represent the time at 0 degrees longitude with no offset. UTC is the scientific standard while GMT is commonly used in everyday speech.
Which countries use half-hour or quarter-hour UTC offsets?+
Several countries use offsets that aren't on the whole hour. India uses UTC+5:30, Nepal UTC+5:45, Iran UTC+3:30 in winter, Sri Lanka UTC+5:30, and Australia's central states use UTC+9:30 (ACST) or UTC+10:30 (ACDT) in summer.