Alton, IL to Lisbon: time difference
Lisbon is 6 h ahead of Alton, 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.
Alton, IL 07:30 7:30 AM Lisbon 13:30 1:30 PM You –:–
07:30 7:30 AM
Central Daylight Time · UTC-5
☀️ 07:16 · 🌙 18:17
13:30 1:30 PM
Western European Summer Time · UTC+1
☀️ 07:51 · 🌙 18:53
·
+6 h
Lisbon is 6 h ahead of Alton, IL.
When you, Alton, 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
🇺🇸 Alton, 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 | 🇺🇸 Alton, IL | 🇵🇹 Lisbon |
|---|---|---|
| Local time | 07:30 | 13:30 |
| 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 Alton, 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 | 07:16 | 07:51 |
| Sunset | 18:17 | 18:53 |
| Daylight | 11 h 1 min | 11 h 2 min |
| People on this clock | 25,676 | 545,923 |
Compare Alton, IL with another city
More comparisons with Alton, IL: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Alton, IL and Lisbon: common questions
How far ahead of Alton, IL, is Lisbon?
Lisbon is 6 hours ahead of Alton: UTC+1 against UTC−5.
If it is 9:00 AM in Alton, IL, what time is it in Lisbon?
At 9:00 AM in Alton, clocks in Lisbon show 3:00 PM.
What time is it in Lisbon at the end of the working day in Alton, IL?
The working day in Alton ends at 6:00 PM; in Lisbon it is 12:00 AM (the next day) at that moment.
When is a good time to call Lisbon from Alton, IL?
Between 9:00 AM and 12:00 PM in Alton – that is 3:00 PM to 6:00 PM in Lisbon – both places are within working hours (9:00 AM–6:00 PM).
When is it already the next day in Lisbon?
From 6:00 PM in Alton, IL, it is already the next day in Lisbon. The other way round, until 6:00 AM in Lisbon it is still the previous day in Alton.
Is the time difference between Alton, IL, and Lisbon 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, Lisbon will be 5 hours ahead of Alton.
