Lisbon to Knoxville, TN: time difference
Knoxville, TN is 5 h behind Lisbon. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Lisbon 11:38 11:38 AM Knoxville, TN 06:38 6:38 AM You –:–
11:38 11:38 AM
Western European Summer Time · UTC+1
☀️ 07:41 · 🌙 19:07
06:38 6:38 AM
Eastern Daylight Time · UTC-4
☀️ 07:39 · 🌙 19:08
·
−5 h
Knoxville, TN is 5 h behind Lisbon.
When you, Lisbon and Knoxville, TN are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇵🇹 Lisbon
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇺🇸 Knoxville, TN
19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM 0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇵🇹 Lisbon | 🇺🇸 Knoxville, TN |
|---|---|---|
| Local time | 11:38 | 06:38 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Western European Summer Time | Eastern Daylight Time |
| UTC offset | UTC+1 | UTC-4 |
| Offset from Lisbon | — | −5 h |
| IANA zone | Europe/Lisbon | America/New York |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 07:41 | 07:39 |
| Sunset | 19:07 | 19:08 |
| Daylight | 11 h 26 min | 11 h 29 min |
| People on this clock | 545,923 | 190,740 |
Compare Lisbon with another city
More comparisons with Lisbon: the time zones next to it and the far side of the clock.
Big time differences
Lisbon and Knoxville, TN: common questions
How many hours behind Lisbon is Knoxville, TN?
The clocks in Knoxville are 5 hours behind those in Lisbon (UTC−4 and UTC+1).
If it is 9:00 AM in Lisbon, what time is it in Knoxville, TN?
At 9:00 AM in Lisbon, clocks in Knoxville show 4:00 AM.
What time is it in Knoxville, TN, when it is 6:00 PM in Lisbon?
When it is 6:00 PM in Lisbon, it is 1:00 PM in Knoxville.
When do working hours in Lisbon and in Knoxville, TN, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 2:00 PM to 6:00 PM in Lisbon, which is 9:00 AM to 1:00 PM in Knoxville.
Until what time in Lisbon is it still yesterday in Knoxville, TN?
Before 5:00 AM in Lisbon, the date in Knoxville has not changed yet. From 7:00 PM in Knoxville, it is already the next day in Lisbon.
Does the time difference between Lisbon and Knoxville, TN, change?
Yes. Both places change their clocks, but on different dates. From October 25, 2026, Knoxville will be 4 hours behind Lisbon.
