Lisbon to Oak Park, IL: time difference
Oak Park, IL is 6 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 16:32 4:32 PM Oak Park, IL 10:32 10:32 AM You –:–
16:32 4:32 PM
Western European Summer Time · UTC+1
☀️ 07:51 · 🌙 18:53
10:32 10:32 AM
Central Daylight Time · UTC-5
☀️ 07:10 · 🌙 18:03
·
−6 h
Oak Park, IL is 6 h behind Lisbon.
When you, Lisbon and Oak Park, IL 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
🇺🇸 Oak Park, IL
18 6 PM 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇵🇹 Lisbon | 🇺🇸 Oak Park, IL |
|---|---|---|
| Local time | 16:32 | 10:32 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Western European Summer Time | Central Daylight Time |
| UTC offset | UTC+1 | UTC-5 |
| Offset from Lisbon | — | −6 h |
| IANA zone | Europe/Lisbon | America/Chicago |
| Daylight saving | On summer time → UTC+0, Oct 25, 01:00 | On summer time → UTC-6, Nov 1, 01:00 |
| Sunrise | 07:51 | 07:10 |
| Sunset | 18:53 | 18:03 |
| Daylight | 11 h 2 min | 10 h 54 min |
| People on this clock | 545,923 | 54,583 |
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 Oak Park, IL: common questions
What is the time difference between Lisbon and Oak Park, IL?
Oak Park is 6 hours behind: it uses UTC−5, while Lisbon is on UTC+1.
What time is it in Oak Park, IL, when it is 9:00 AM in Lisbon?
When it is 9:00 AM in Lisbon, it is 3:00 AM in Oak Park.
What time is it in Oak Park, IL, when it is 6:00 PM in Lisbon?
When it is 6:00 PM in Lisbon, it is 12:00 PM in Oak Park.
When do working hours in Lisbon and in Oak Park, IL, overlap?
Working hours (9:00 AM–6:00 PM) overlap from 3:00 PM to 6:00 PM in Lisbon, which is 9:00 AM to 12:00 PM in Oak Park.
When is it still the previous day in Oak Park, IL?
Until 6:00 AM in Lisbon it is still the previous day in Oak Park. The other way round, from 6:00 PM in Oak Park it is already the next day in Lisbon.
Is the time difference between Lisbon and Oak Park, IL, the same all year?
No. Both places use summer time, but they switch on different dates, so for a while the gap changes. From October 25, 2026, Oak Park will be 5 hours behind Lisbon.
