Atlanta to Lisbon Time Difference
Lisbon is 5 hours ahead of Atlanta. When it's 08:57:42 AM in Atlanta, it's 01:57:42 PM in Lisbon.
How Many Hours Ahead Is Lisbon From Atlanta?
Lisbon is 5 hours ahead of Atlanta. So Atlanta is 5 hours behind Lisbon looking the other way — the same gap, described from the other end.
In practice that means a working day in Atlanta starts when it is already 2:00 PM in Lisbon. The gap is not fixed all year: it becomes 4 hours on Sunday, October 25, 2026, when Lisbon changes its clocks.
Best Time to Call Atlanta and Lisbon
Both cities are inside normal business hours between 9:00 AM and 12:00 PM in Atlanta — that's 2:00 PM to 5:00 PM in Lisbon. That's a 3-hour window, so a call fits comfortably in either side's working day.
both at work Atlanta only Lisbon only neither — hours shown along the strip are Atlanta local time.
Convert a Specific Time
Pick any date and time in Atlanta to see the exact equivalent in Lisbon.
Common Times Converted
Atlanta time on the left, Lisbon time on the right.
Atlanta to Lisbon: Full 24-Hour Conversion Table
Based on today, Sunday, October 11, 2026 in Atlanta. Shaded rows are working hours; the darker shade marks the hours when both cities are at work.
| Atlanta | Lisbon | Working hours |
|---|---|---|
| 12:00 AM | 5:00 AM | — |
| 1:00 AM | 6:00 AM | — |
| 2:00 AM | 7:00 AM | — |
| 3:00 AM | 8:00 AM | — |
| 4:00 AM | 9:00 AM | Lisbon only |
| 5:00 AM | 10:00 AM | Lisbon only |
| 6:00 AM | 11:00 AM | Lisbon only |
| 7:00 AM | 12:00 PM | Lisbon only |
| 8:00 AM | 1:00 PM | Lisbon only |
| 9:00 AM | 2:00 PM | Both cities |
| 10:00 AM | 3:00 PM | Both cities |
| 11:00 AM | 4:00 PM | Both cities |
| 12:00 PM | 5:00 PM | Atlanta only |
| 1:00 PM | 6:00 PM | Atlanta only |
| 2:00 PM | 7:00 PM | Atlanta only |
| 3:00 PM | 8:00 PM | Atlanta only |
| 4:00 PM | 9:00 PM | Atlanta only |
| 5:00 PM | 10:00 PM | — |
| 6:00 PM | 11:00 PM | — |
| 7:00 PM | 12:00 AM next day | — |
| 8:00 PM | 1:00 AM next day | — |
| 9:00 PM | 2:00 AM next day | — |
| 10:00 PM | 3:00 AM next day | — |
| 11:00 PM | 4:00 AM next day | — |
Understanding the Atlanta – Lisbon Time Difference
Atlanta runs on America/New_York, currently EDT (UTC-4:00). Lisbon runs on Europe/Lisbon, currently WEST (UTC+1:00). The gap of 5 hours is simply the distance between those two offsets.
Both cities observe Daylight Saving Time, but they don't switch on the same date — so for a few weeks each year the gap between them is different again. The next shift is on Sunday, October 25, 2026, when Lisbon adjusts its clocks and the difference becomes 4 hours. Anything scheduled across that date needs checking again.
Full clock-change dates: Daylight Saving Time in the United States.
Atlanta today
Lisbon today
Frequently Asked Questions
What is the time difference between Atlanta and Lisbon?
Lisbon is currently 5 hours ahead of Atlanta. That gap becomes 4 hours on Sunday, October 25, 2026, when Lisbon changes its clocks.
How many hours ahead is Lisbon from Atlanta?
Lisbon is 5 hours ahead of Atlanta. Looking at it the other way, Atlanta is 5 hours behind Lisbon.
What time is it in Lisbon when it is 9:00 AM in Atlanta?
When it is 9:00 AM in Atlanta, it is 2:00 PM in Lisbon.
Is Lisbon ahead of or behind Atlanta?
Lisbon is 5 hours ahead of Atlanta. Lisbon reaches each point in the day first, so its working day is already finishing while Atlanta is still getting started.
What is the best time to call between Atlanta and Lisbon?
Between 9:00 AM and 12:00 PM Atlanta time, which is 2:00 PM to 5:00 PM in Lisbon. Both cities are inside normal business hours during that window.
Does the time difference between Atlanta and Lisbon change during the year?
Yes. Both cities observe Daylight Saving Time, and they do not always switch on the same date, so the gap between them shifts during the year. It changes to 4 hours on Sunday, October 25, 2026.
What time zones are Atlanta and Lisbon in?
Atlanta uses the America/New_York time zone, currently EDT (UTC-4:00). Lisbon uses Europe/Lisbon, currently WEST (UTC+1:00).