Time Zone Converter: EST, CST, MST, PST and World Times
Convert any date and time between US time zones and hundreds of cities worldwide, with daylight saving handled automatically and a meeting planner to find good hours. It runs in your browser with nothing sent anywhere.
100% private: files are processed by your browser. Nothing is uploaded to GrowthPi or anyone else.
How to use the Time Zone Converter
- 1
Pick the date and time, and the time zone it is in (your own zone is detected).
- 2
See the same moment in Eastern, Central, Mountain and Pacific Time, and London.
- 3
Add or remove time zones from the list below.
- 4
Use the meeting planner to click an hour that works for everyone, then copy the times.
Convert times between US and world time zones
Scheduling a call with a client in California from New York, a webinar for viewers in four time zones, or a meeting with a team in London or Manila? This time zone converter shows one moment in every zone you care about. Type a date and time, choose the zone it is in, and the list updates for Eastern, Central, Mountain and Pacific Time plus any city you add.
Daylight saving time is handled automatically using the time zone database built into your browser, the same one your phone and computer use, so dates in March and November are converted correctly.
US time zones explained
| Zone | Standard time | Daylight time | Example cities |
|---|---|---|---|
| Eastern (ET) | EST, UTC−5 | EDT, UTC−4 | New York, Atlanta, Miami, Detroit |
| Central (CT) | CST, UTC−6 | CDT, UTC−5 | Chicago, Dallas, Houston, Minneapolis |
| Mountain (MT) | MST, UTC−7 | MDT, UTC−6 | Denver, Salt Lake City, Albuquerque |
| Arizona | MST, UTC−7 | No DST | Phoenix, Tucson |
| Pacific (PT) | PST, UTC−8 | PDT, UTC−7 | Los Angeles, Seattle, San Francisco |
| Alaska (AKT) | AKST, UTC−9 | AKDT, UTC−8 | Anchorage |
| Hawaii (HST) | HST, UTC−10 | No DST | Honolulu |
Quick rule: Pacific Time is 3 hours behind Eastern Time all year. 9:00 AM PT is 12:00 PM ET, and 5:00 PM ET is 2:00 PM PT. Central is 1 hour behind Eastern, and Mountain is 2 hours behind.
Daylight saving time: the dates that trip people up
In most of the US, clocks move forward one hour at 2:00 AM on the second Sunday of March and back one hour at 2:00 AM on the first Sunday of November. Hawaii and most of Arizona stay on standard time all year, so Phoenix matches Pacific Time in summer and Mountain Time in winter. Puerto Rico and the other US territories do not use daylight saving time either.
Europe changes on different dates: the last Sunday of March and the last Sunday of October. For a couple of weeks each spring and fall, New York and London are 4 hours apart instead of the usual 5. Many countries, including India, China, Japan and the Philippines, do not use daylight saving time at all. Each row in the converter says whether that zone is on standard time, daylight saving time, or does not change its clocks.
Using the meeting planner
The planner shows the 24 hours of your chosen day side by side for every zone in the list:
- Green cells are typical work hours (9 AM to 5 PM).
- Yellow cells are early morning or evening (7 to 9 AM and 5 to 10 PM).
- Gray cells are night.
Look for a column that is green, or at least yellow, in every row, and click it to set that time. Then press Copy times to paste the meeting time for every zone into an email or calendar invite. For more on running remote meetings well, see our guides on taking better meeting notes and AI meeting assistants.
Scheduling tips for remote teams and freelancers
- Write the time zone every time: "2:00 PM ET / 11:00 AM PT" avoids most mistakes. Prefer "ET" over "EST" unless you mean standard time specifically, because EST is only correct from November to March.
- Use UTC for global groups. UTC never changes for daylight saving, so it is a safe reference for teams spread across many countries.
- Watch the date line. A Monday 6:00 PM call in Los Angeles is Tuesday morning in Tokyo and Sydney. The converter marks these with "+1 day".
- Protect focus time. If you work with people far away, block your overlap hours and keep the rest for deep work, as described in our time blocking guide and tips on working from home productively.
- Freelancing abroad? Agree on one time zone in the contract and invoice. Our guide to starting freelancing online covers working with international clients, and the online money converter helps with foreign currencies.
Private and accurate
The conversion uses the IANA time zone database included in modern browsers, with more than 400 zones. Nothing is sent to a server, and your own time zone is read from your device only to fill in the default.
Last updated November 7, 2026.
Time Zone Converter FAQ
What time is it in PST if it is 12 PM EST?
12:00 PM Eastern is 9:00 AM Pacific. Pacific Time is always 3 hours behind Eastern Time, in both standard and daylight time.
What is the difference between EST and EDT?
EST (UTC−5) is Eastern Standard Time, used from early November to mid March. EDT (UTC−4) is Eastern Daylight Time, used the rest of the year. "ET" covers both.
When does daylight saving time start and end in the US?
It starts at 2:00 AM on the second Sunday in March and ends at 2:00 AM on the first Sunday in November. Hawaii and most of Arizona do not change their clocks.
Does Arizona observe daylight saving time?
Most of Arizona does not, so it stays on MST (UTC−7) all year. The Navajo Nation in northeastern Arizona does observe daylight saving time.
How do I find a good meeting time across time zones?
Add every participant’s zone, then look at the meeting planner for an hour that is green (work hours) in every row. Click it and copy the times.
What is UTC?
UTC (Coordinated Universal Time) is the world’s reference time. It does not change for daylight saving, and every time zone is described as an offset from it, such as UTC−5.