Time Zone Converter
See the current time live in 6 major cities (Riyadh, Dubai, London, New York, Tokyo, Sydney) or convert any time between any two zones from a list of 20 world cities.
| City | UTC | Offset from Riyadh | Note |
|---|---|---|---|
| Muscat (Oman) | UTC+4 | +1 | Fixed all year |
| Dubai | UTC+4 | +1 | Fixed all year |
| Riyadh | UTC+3 | — | Fixed all year |
| London | UTC+0/+1 | −3 or −2 | Observes daylight saving |
| New York | UTC−5/−4 | −8 or −7 | Observes daylight saving |
| Tokyo | UTC+9 | +6 | Fixed all year |
What is the time difference between Oman and London?
In summer (BST) +3 hours, in winter (GMT) +4 hours. Oman does not observe daylight saving and stays at UTC+4 all year.
What is the difference between Riyadh and New York?
Riyadh (UTC+3) is 8 hours ahead of New York in winter (EST) and 7 hours ahead in summer (EDT).
What is the difference between GMT and UTC?
In practice they are identical. GMT is historically British. UTC is the international scientific standard used in computer systems and the internet.
Why do time differences change in summer?
Because of daylight saving time (DST). Countries like the US, Europe and Australia set their clocks forward in summer to use daylight longer. Gulf countries do not apply DST and remain fixed.
Which Gulf countries observe daylight saving time?
No Gulf country observes daylight saving time. Oman is UTC+4; UAE, Saudi Arabia, Qatar and Kuwait are UTC+3 — all fixed throughout the year.
What is the best meeting time between Dubai and London?
The difference is 3–4 hours. Best overlap: 9–11 am London = 12–2 pm Dubai. Avoid afternoon slots in London which become evening in Dubai.
How do I find my time zone automatically?
The browser detects your time zone automatically via Intl.DateTimeFormat. You can verify it in your device settings under "Date & Time".
What is the difference between UTC+4 and UTC+4:30?
Some time zones have fractional hours. Iran is UTC+3:30, India UTC+5:30, Afghanistan UTC+4:30. Oman is exactly UTC+4 with no fraction.
Time Zone Converter — World Clocks Explained
Time zones are expressed as offsets from Coordinated Universal Time (UTC). For example, Gulf Standard Time is UTC+4, London is UTC+0 (GMT) in winter and UTC+1 in summer. The converter shows current local time in any city and converts any specific time across zones — useful for scheduling international calls and meetings.
Key time zones for Gulf-to-World scheduling
- Oman (Muscat): UTC+4 — no daylight saving
- UAE / Saudi (Dubai / Riyadh): UTC+3 / UTC+3 — no daylight saving
- UK (London): UTC+0 (GMT) winter / UTC+1 (BST) summer
- USA East Coast (New York): UTC−5 (EST) winter / UTC−4 (EDT) summer
Daylight saving time (DST)
Most Gulf countries do not observe DST, meaning the time offset to Europe and North America shifts by one hour in spring and autumn. This can catch people off guard when scheduling recurring international meetings — always double-check after DST transitions (March and November for the US, late March and late October for Europe).