The United States has 8 time zones in the IANA time zone database: right now the clocks range from UTC−10 (Honolulu) to UTC−4 (New York), a spread of 6 hours. Compared with Brasília, the difference goes from −7 h to −1 h. 6 of them change their clocks for daylight saving time, the others do not.
Current time in each time zone of the United States
| Zone (reference city) | Time now | UTC | Difference to Brasília | Daylight saving time | Same time as |
|---|---|---|---|---|---|
| Honolulu Pacific/Honolulu |
05:00:39 | UTC−10 | 7 hours behind Brasília −7 h |
No daylight saving time Next change: no changes scheduled |
— |
| Adak America/Adak |
06:00:39 | UTC−9 Standard UTC−10 · summer UTC−9 |
6 hours behind Brasília −6 h |
On daylight saving time now Next change: Sunday, November 1, 2026, 02:00 (local time): clocks go back 1 h (DST ends) |
— |
| Anchorage America/Anchorage |
07:00:39 | UTC−8 Standard UTC−9 · summer UTC−8 |
5 hours behind Brasília −5 h |
On daylight saving time now Next change: Sunday, November 1, 2026, 02:00 (local time): clocks go back 1 h (DST ends) |
Juneau, Metlakatla, Nome, Sitka, Yakutat |
| Los Angeles America/Los_Angeles |
08:00:39 | UTC−7 Standard UTC−8 · summer UTC−7 |
4 hours behind Brasília −4 h |
On daylight saving time now Next change: Sunday, November 1, 2026, 02:00 (local time): clocks go back 1 h (DST ends) |
— |
| Phoenix America/Phoenix |
08:00:39 | UTC−7 | 4 hours behind Brasília −4 h |
No daylight saving time Next change: no changes scheduled |
— |
| Denver America/Denver |
09:00:39 | UTC−6 Standard UTC−7 · summer UTC−6 |
3 hours behind Brasília −3 h |
On daylight saving time now Next change: Sunday, November 1, 2026, 02:00 (local time): clocks go back 1 h (DST ends) |
Boise |
| Chicago America/Chicago |
10:00:39 | UTC−5 Standard UTC−6 · summer UTC−5 |
2 hours behind Brasília −2 h |
On daylight saving time now Next change: Sunday, November 1, 2026, 02:00 (local time): clocks go back 1 h (DST ends) |
Knox, Indiana, Tell City, Indiana, Menominee, Beulah, North Dakota, Center, North Dakota, New Salem, North Dakota |
| New York America/New_York |
11:00:39 | UTC−4 Standard UTC−5 · summer UTC−4 |
1 hour behind Brasília −1 h |
On daylight saving time now Next change: Sunday, November 1, 2026, 02:00 (local time): clocks go back 1 h (DST ends) |
Detroit, Indianapolis, Marengo, Indiana, Petersburg, Indiana, Vevay, Indiana, Vincennes, Indiana, Winamac, Indiana, Louisville, Kentucky, Monticello, Kentucky |
Zones are grouped by the UTC offset they have in January and in July of this year; the cities in the last column use exactly the same time as the reference city. The time follows the server clock and updates by itself.
How the time zones of the United States are laid out
The United States has four main time zones on the mainland: Eastern, Central, Mountain and Pacific, plus Alaska time and Hawaii-Aleutian time. Daylight saving time starts on the second Sunday of March and ends on the first Sunday of November. Hawaii and most of Arizona do not change their clocks, which is why each shows up as a separate group in the table.
Territories such as Puerto Rico, Guam and American Samoa keep their own time and are not part of this count. For the daylight saving dates, see daylight saving time in the United States.
What the numbers say about the United States
- IANA identifiers for the country: 29, which boil down to 8 distinct clock rules.
- Different times today: 7 (UTC−10, UTC−9, UTC−8, UTC−7, UTC−6, UTC−5, UTC−4).
- Compared with Brasília: 0 ahead, 0 at the same time and 8 behind.
- Daylight saving time: 6 of 8 groups. Next change in Adak: Sunday, November 1, 2026, 02:00 (local time): clocks go back 1 h (DST ends).
When it is 12:00 in Brasília: time in each zone of the United States
A table for planning meetings, using today's rules. If the meeting date falls after a daylight saving change, check it in the meeting planner.
| Zone | Brasília 09:00 | Brasília 12:00 | Brasília 18:00 |
|---|---|---|---|
| Honolulu (UTC−10) | 02:00 | 05:00 | 11:00 |
| Adak (UTC−9) | 03:00 | 06:00 | 12:00 |
| Anchorage (UTC−8) | 04:00 | 07:00 | 13:00 |
| Los Angeles (UTC−7) | 05:00 | 08:00 | 14:00 |
| Phoenix (UTC−7) | 05:00 | 08:00 | 14:00 |
| Denver (UTC−6) | 06:00 | 09:00 | 15:00 |
| Chicago (UTC−5) | 07:00 | 10:00 | 16:00 |
| New York (UTC−4) | 08:00 | 11:00 | 17:00 |