What Time Is It in Pacific, Eastern, UTC and Other Major Zones?
Live clocks for Pacific, Mountain, Central and Eastern Time, UTC, GMT, London, India, Dubai, Tokyo and Sydney — with the current PST/PDT-style abbreviation for each, updating every second.
How to use it
- Each card reads live from your device's clock, converted into that zone — no manual offset math.
- The small label on each card (PST, PDT, GMT, IST...) is the zone's current abbreviation, and flips automatically when daylight saving starts or ends.
- Switch between 12 and 24 hour display with the toggle.
'Pacific time' and 'UTC' are both moving targets in a way a single number can't capture: Pacific alternates between two different UTC offsets depending on the time of year, and UTC itself is a standard rather than a place. This page shows all of the commonly asked-about zones side by side, live, along with the abbreviation each one is currently using.
Pacific, Mountain, Central, Eastern — PST vs PDT and why it changes
The four contiguous-US time zones each have two names depending on the season: Pacific is PST (UTC−8) in winter and PDT (UTC−7) during daylight saving; the same pattern applies to Mountain (MST/MDT), Central (CST/CDT) and Eastern (EST/EDT). In the US and Canada, clocks move forward one hour on the second Sunday of March and back on the first Sunday of November — a schedule fixed by the Energy Policy Act of 2005 and unchanged since it took effect in 2007.
Not every place inside a US time zone follows that schedule. Most of Arizona stays on MST year-round and never switches to MDT, while the Navajo Nation within Arizona does observe the switch — one of the more commonly cited daylight-saving exceptions in the country.
| Zone | Standard (winter) | Daylight saving (summer) |
|---|---|---|
| Pacific | PST — UTC−8 | PDT — UTC−7 |
| Mountain | MST — UTC−7 | MDT — UTC−6 |
| Central | CST — UTC−6 | CDT — UTC−5 |
| Eastern | EST — UTC−5 | EDT — UTC−4 |
UTC vs GMT — same number, different meaning
UTC (Coordinated Universal Time) is a modern timekeeping standard defined by atomic clocks, occasionally adjusted with a leap second to stay lined up with the Earth's actual rotation. It never observes daylight saving and has no associated place. GMT (Greenwich Mean Time) started out as solar time measured at the Royal Observatory in Greenwich, London — historically an actual place and observation, not an abstract standard.
In practice the two are within a fraction of a second of each other and are used interchangeably for 'zero offset'. Where it actually matters is the UK's own civil clock: London runs on GMT in winter but switches to BST (British Summer Time, UTC+1) from the last Sunday in March to the last Sunday in October — so 'GMT' and 'London time' are only the same thing for about half the year. This page's GMT row is fixed at UTC+0 year-round on purpose, so comparing it against the London row shows that gap directly.
Zones with no daylight saving at all
India Standard Time (UTC+5:30), UAE time in Dubai (UTC+4) and Japan Standard Time in Tokyo (UTC+9) all stay fixed year-round — India and Japan have not observed daylight saving in decades, and the UAE never has. Australia is the opposite case worth flagging: Sydney does observe daylight saving, but on the Southern Hemisphere's reversed calendar, springing forward in October (AEDT, UTC+11) and falling back in April (AEST, UTC+10) — so its clock shifts in the months when the Northern Hemisphere zones above are staying put.
Everything runs in your browser
There is no server involved in the calculation. The numbers you type never leave your device, nothing is logged, and the page keeps working with no connection once it has loaded. That is not a marketing line — it is simply how the tool is built, because a calculation like this has no reason to touch a network.
Questions people ask
Is it Pacific Standard Time or Pacific Daylight Time right now?
It depends on the date, not a fixed rule: PDT (UTC−7) runs from the second Sunday of March to the first Sunday of November, and PST (UTC−8) covers the rest of the year. The card on this page is computed live, so it already shows the correct one and its current abbreviation.
Is UTC the same as GMT?
Numerically yes — both are UTC+0. Conceptually no: UTC is an atomic-clock standard with no location, while GMT is historically Greenwich solar time and is still used as the UK's own winter civil time (the UK switches to BST, UTC+1, every summer). This page's GMT row stays at UTC+0 all year so you can see exactly when it and London time diverge.
Why doesn't Arizona change its clocks like the rest of the US?
Most of Arizona opted out of the Energy Policy Act's daylight-saving schedule and stays on Mountain Standard Time year-round. The Navajo Nation, which extends into Arizona, does observe daylight saving, which is why an Arizona border can briefly sit an hour apart from itself for part of the year.
Where does the time on this page come from?
Your own device's clock, converted into each zone using its current UTC offset. If a reading looks wrong, your system clock or time zone setting is the place to check first.
Last updated 26 August 2026