What Is My Time Zone
Your time zone is detected from your device the moment the page opens: the IANA zone name, the current UTC offset, the abbreviation, whether daylight saving time is in effect and when the clocks change next. Copy any value, or check whether your IP address points to the same zone.
Last updated:
Compare with your IP address location
Websites often guess your time zone from your IP address. Check whether that guess matches your device setting (a mismatch is common with VPNs, proxies, travel and mobile networks). Your IP address is sent to ipwho.is for this lookup.
Other time zones on the same offset right now
Browser date and time settings
How to use the What Is My Time Zone
- Open the page: your time zone, offset and local time appear immediately, with no permission needed.
- Check daylight saving time to see whether it is in effect and when the next change happens.
- Copy what you need, such as the IANA ID for software settings or the ISO timestamp for a log.
- Press Check IP time zone to see whether websites that use your IP address will guess the same zone.
- Look at the same-offset list to find other cities and regions currently on your time.
Reading your time zone details
| Value | Example | What it is for |
|---|---|---|
| IANA time zone ID | America/Denver | The precise zone, including all daylight saving rules. Use it in calendars, servers, databases and code. |
| UTC offset | UTC−06:00 | How far local time is from UTC right now. Changes when daylight saving time starts or ends. |
| Abbreviation | MDT | Short label for humans. Not unique (IST is used for India, Ireland and Israel), so avoid it in software. |
| ISO 8601 local time | 2026-07-04T14:30:00-06:00 | An unambiguous timestamp with the offset included, used in logs and APIs. |
| Unix timestamp | 1783197000 | Seconds since 1 January 1970 00:00 UTC. Identical everywhere on Earth at the same instant. |
Local time = UTC + offset. For example 18:00 UTC at UTC−05:00 is 13:00 local time, and at UTC+05:30 it is 23:30. Offsets are not always whole hours: India uses +05:30, Nepal +05:45 and parts of Australia +09:30.
Daylight saving time at a glance
| Region | Clocks go forward | Clocks go back |
|---|---|---|
| United States and Canada (most areas) | Second Sunday in March, 2:00 AM local | First Sunday in November, 2:00 AM local |
| European Union, UK | Last Sunday in March, 01:00 UTC | Last Sunday in October, 01:00 UTC |
| Australia (NSW, Victoria, ACT, Tasmania, SA) | First Sunday in October | First Sunday in April |
| New Zealand | Last Sunday in September | First Sunday in April |
| No DST (examples) | Arizona (except the Navajo Nation), Hawaii, Japan, China, India, most of Africa and South America | |
Rules change from time to time by law; your browser's built-in time zone database is updated with browser and operating system updates. The "Next clock change" on this page is calculated from that database for your own zone.
If your time zone is wrong
- Windows: Settings > Time & language > Date & time, turn on "Set time zone automatically" or pick the zone by hand.
- macOS: System Settings > General > Date & Time, enable "Set time zone automatically using your current location".
- iPhone and Android: Settings > General (or System) > Date & Time, turn on automatic time zone.
- Reload this page after changing the setting; some browsers need a restart to pick up a new zone.
Frequently asked questions
How does this page know my time zone?
It reads the time zone your operating system is set to, which the browser exposes through the standard Intl API. No location permission or network request is needed. If the result is wrong, your device's date and time settings are set to the wrong zone or automatic time zone detection is off.
What is the difference between a time zone and a UTC offset?
A UTC offset such as UTC−05:00 is just the difference from Coordinated Universal Time at one moment. A time zone such as America/New_York is a region with a full rule history: it is UTC−05:00 in winter and UTC−04:00 during daylight saving time. Software should store the zone name, not just the offset.
What is an IANA time zone ID?
It is the standard name used by computers, phones and programming languages, written as Area/Location, for example Europe/London or Asia/Kolkata. The IANA time zone database records every rule change for each zone, which is why it is preferred over abbreviations.
Why do some zones show GMT+3 instead of an abbreviation?
Abbreviations are not standardized and many regions have no widely used English one. Browsers then fall back to a GMT offset. Abbreviations can also be ambiguous: CST means Central Standard Time in the US but China Standard Time in China, so use the IANA ID or the offset when precision matters.
Why does my IP address show a different time zone?
IP location is only an estimate from network registration data. VPNs, proxies, corporate networks, satellite internet and some mobile carriers route traffic through other regions, so the IP may appear to be in another city or country. Your device setting is what controls the clock you see.
When do the clocks change for daylight saving time?
It depends on the zone. In most of the US and Canada clocks go forward on the second Sunday in March and back on the first Sunday in November at 2:00 AM local time; in the EU they change on the last Sunday of March and October at 01:00 UTC. Many countries do not use daylight saving time at all. The page calculates the next change for your own zone.
Are all the tools on FreeToolCabin tested for quality and accuracy?
Yes! Every tool on our site undergoes automated Q/A testing in real browser environments to ensure high precision, correct output, and zero errors. If you happen to spot a bug or have a suggestion, please contact us at [email protected] and our team will review it right away.