What this converter does
You pick a date and a time, then choose the zone it is in. You also choose the zone you want to see it in. The converter shows the same moment in the second zone. It also shows the offset from UTC for each zone at that moment.
This page is for anyone who has to call across the country, book a flight, or join a meeting in another region. If you need to read or write 24-hour clock times, the military time converter handles that format.
Why zone names beat abbreviations
Abbreviations like EST and EDT name a fixed offset. EST is always UTC-5. EDT is always UTC-4. A place like New York switches between them each year. So "EST" alone does not tell you what time it is in New York in July.
A zone name like America/New_York is a place, not an offset. That place has rules. The rules say when it switches to daylight saving and when it switches back. The converter uses those rules from the browser's built-in time zone database. This database is called IANA. It lists zones such as America/New_York, Europe/London, and Asia/Tokyo.
UTC is the reference point. It never changes for daylight saving. Every zone is written as an offset from UTC, such as UTC-5 or UTC+9. When you convert from UTC to EST, you subtract 5 hours. When you convert from UTC to EDT, you subtract 4 hours. The date can change when you cross midnight.
How to read the results
The converter shows the local time in both zones. It also shows the day of the week. If the date is different in the second zone, that is normal. A call at 9:00 PM in Los Angeles is already the next day in London.
Here is a worked example. You have a meeting at 9:00 AM on September 16, 2026 in America/New_York. You want to know the time in America/Los_Angeles. New York is on EDT in September, which is UTC-4. Los Angeles is on PDT, which is UTC-7. The difference is 3 hours. So the meeting is at 6:00 AM in Los Angeles on the same date.
If you convert that same 9:00 AM New York time to UTC, you add 4 hours. The result is 1:00 PM UTC on September 16, 2026. From there you can convert to any other zone.
Common conversions
Some pairs come up often. The table below shows the offset for each zone on a standard date in September 2026. Offsets change with daylight saving, so check the converter for your exact date.
| Zone | Offset in September 2026 | Notes |
|---|---|---|
| America/New_York | UTC-4 (EDT) | Switches to EST in November |
| America/Los_Angeles | UTC-7 (PDT) | Switches to PST in November |
| Europe/London | UTC+1 (BST) | Switches to GMT in October |
| UTC | UTC+0 | Never changes |
To convert EST to PST, remember that EST is UTC-5 and PST is UTC-8. The difference is 3 hours. So 3:00 PM EST is 12:00 PM PST. In summer, EDT is UTC-4 and PDT is UTC-7. The difference is still 3 hours. The names change, but the gap between the two US coasts stays the same for most of the year.
GMT to EST is a common search. GMT is UTC+0 and does not switch for daylight saving. EST is UTC-5. So 12:00 PM GMT is 7:00 AM EST. If New York is on EDT, then 12:00 PM GMT is 8:00 AM EDT.
Things to watch for
- Daylight saving start and end dates differ by country. The browser database knows the rules for each zone.
- Some zones have half-hour or 45-minute offsets. India is UTC+5:30. Nepal is UTC+5:45.
- A date can change when you cross midnight. Always check the day shown in the result.
- If you type a time that does not exist because of a daylight saving jump, the converter will show the nearest valid time.
The converter does not guess. It reads the zone rules from your browser and applies them to the date you enter. That way you get the same answer a phone or computer would give.