Time Difference Between Arizona Time and Eastern Time
As of 31 August 2026, Eastern Time is 3 hours ahead of Arizona Time. That number is not constant. Over the course of a year, because of daylight saving changes, Eastern Time, United States ranges from 2 hours ahead to 3 hours ahead relative to Arizona Time, United States. The calculator below is always up to date.
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Arizona Time, United States
15:34
Mon, Aug 31, 2026
UTC-7 · MST · America/Phoenix
Eastern Time, United States
+3h18:34
Mon, Aug 31, 2026
UTC-4 · EDT · America/New_York
Eastern Time is 3 hours ahead of Arizona Time.
Time zone details
| Place | Local date | Time zone | UTC offset | Summer time |
|---|---|---|---|---|
| Arizona Time | Monday, August 31, 2026 | MSTAmerica/Phoenix | UTC-7 | Not observed |
| Eastern Time | Monday, August 31, 2026 | EDTAmerica/New_York | UTC-4 | Active now |
Arizona Time: Most of Arizona does not observe daylight saving time, so it stays at UTC-7 all year — the same clock as Mountain Standard Time in winter, but 1 hour behind Mountain Time in summer. The Navajo Nation in Arizona is the exception and does observe it.
Eastern Time: Covers the US East Coast, from New York to Miami to Atlanta. Switches between EST (UTC-5) and EDT (UTC-4) with daylight saving.
Hour by hour: Arizona Time to Eastern Time
Every hour of today in Arizona Time and what it is in Eastern Time. Highlighted rows fall inside Eastern Time working hours (09:00–18:00).
| Arizona Time | Eastern Time |
|---|---|
| 00:00 | 03:00 |
| 01:00 | 04:00 |
| 02:00 | 05:00 |
| 03:00 | 06:00 |
| 04:00 | 07:00 |
| 05:00 | 08:00 |
| 06:00 | 09:00 |
| 07:00 | 10:00 |
| 08:00 | 11:00 |
| 09:00 | 12:00 |
| 10:00 | 13:00 |
| 11:00 | 14:00 |
| Arizona Time | Eastern Time |
|---|---|
| 12:00 | 15:00 |
| 13:00 | 16:00 |
| 14:00 | 17:00 |
| 15:00 | 18:00 |
| 16:00 | 19:00 |
| 17:00 | 20:00 |
| 18:00 | 21:00 |
| 19:00 | 22:00 |
| 20:00 | 23:00 |
| 21:00 | 00:00next day |
| 22:00 | 01:00next day |
| 23:00 | 02:00next day |
Best time to call or meet
Overlapping working hours
09:00–15:00 in Arizona Time (12:00–18:00 in Eastern Time)
Both places are inside 09:00–18:00 for 6 hours a day. Anything in this window works without asking anyone to stay late.
Reasonable calling hours
08:00–18:00 in Arizona Time (11:00–21:00 in Eastern Time)
Both people are awake and available between 08:00 and 21:00 local time during this window.
When this difference changes
Eastern Time puts its clocks back on Sunday, November 1, 2026
The local offset moves from UTC-4 to UTC-5. After that date, Eastern Time is 2 hours ahead of Arizona Time — instead of 3 hours ahead, as it is today.
Planning something with more than two places?
Adding a third city usually kills the obvious answer. The Meeting Time Finder takes up to five cities at once and shows only the hours that work for everybody.
Arizona Time and Eastern Time: common questions
What is the time difference between Arizona Time and Eastern Time?
As of 31 August 2026, Eastern Time is 3 hours ahead of Arizona Time. The gap is not fixed: across the year, Eastern Time ranges from 2 hours ahead to 3 hours ahead relative to Arizona Time, as clocks change. The calculator on this page always shows the difference for right now.
When it is 9:00 AM in Arizona Time, what time is it in Eastern Time?
It is 12:00 PM in Eastern Time, United States. Use the time field in the calculator above to check any other hour.
Is Eastern Time ahead of or behind Arizona Time?
Eastern Time is ahead of Arizona Time by 3 hours at the moment. In practical terms, the working day in Eastern Time starts and ends earlier in Arizona Time terms.
Do Arizona Time and Eastern Time observe daylight saving time?
Eastern Time changes its clocks twice a year; Arizona Time does not. The difference therefore shifts by an hour when Eastern Time switches: across the year, Eastern Time ranges from 2 hours ahead to 3 hours ahead relative to Arizona Time.
What is the best time to call Eastern Time from Arizona Time?
Working hours overlap between 09:00 and 15:00 Arizona Time time, which is 12:00 to 18:00 in Eastern Time. Calls inside that window reach both sides during the normal working day.
Related comparisons
Local dates shown for Arizona Time, United States (UTC-7) and Eastern Time, United States (UTC-4) were generated on Monday, August 31, 2026 UTC and refresh in your browser.