Oak Park, IL to Lisbon: time difference
Lisbon is 6 h ahead of Oak Park, IL. Live clocks for both, the working hours they share, and how each one sits against your own time.
+6 h
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Oak Park, IL 09:39 9:39 AM Lisbon 15:39 3:39 PM You –:–
09:39 9:39 AM
Central Daylight Time · UTC-5
☀️ 07:10 · 🌙 18:03
15:39 3:39 PM
Western European Summer Time · UTC+1
☀️ 07:51 · 🌙 18:53
·
+6 h
Lisbon is 6 h ahead of Oak Park, IL.
When you, Oak Park, IL and Lisbon are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Oak Park, IL
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
🇵🇹 Lisbon
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 0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM
📍 Your time
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Time zones side by side
| Detail | 🇺🇸 Oak Park, IL | 🇵🇹 Lisbon |
|---|---|---|
| Local time | 09:39 | 15:39 |
| Local date | Tuesday, October 20, 2026 | Tuesday, October 20, 2026 |
| Time zone | Central Daylight Time | Western European Summer Time |
| UTC offset | UTC-5 | UTC+1 |
| Offset from Oak Park, IL | — | +6 h |
| IANA zone | America/Chicago | Europe/Lisbon |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | On summer time → UTC+0, Oct 25, 01:00 |
| Sunrise | 07:10 | 07:51 |
| Sunset | 18:03 | 18:53 |
| Daylight | 10 h 54 min | 11 h 2 min |
| People on this clock | 54,583 | 545,923 |
Compare Oak Park, IL with another city
More comparisons with Oak Park, IL: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Oak Park, IL and Lisbon: common questions
How many hours ahead of Oak Park, IL, is Lisbon?
The clocks in Lisbon are 6 hours ahead of those in Oak Park (UTC+1 and UTC−5).
If it is 9:00 AM in Oak Park, IL, what time is it in Lisbon?
At 9:00 AM in Oak Park, clocks in Lisbon show 3:00 PM.
What time is it in Lisbon when it is 6:00 PM in Oak Park, IL?
When it is 6:00 PM in Oak Park, it is 12:00 AM (the next day) in Lisbon.
When is a good time to call Lisbon from Oak Park, IL?
Between 9:00 AM and 12:00 PM in Oak Park – that is 3:00 PM to 6:00 PM in Lisbon – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Lisbon compared with Oak Park, IL?
The new day starts in Lisbon earlier: at 6:00 PM in Oak Park it is already midnight there. Until 6:00 AM in Lisbon, Oak Park is still on the previous day.
Does the time difference between Oak Park, IL, and Lisbon change?
Yes. Both places change their clocks, but on different dates. From October 25, 2026, Lisbon will be 5 hours ahead of Oak Park.
