Round Rock, TX to Lisbon: time difference
Lisbon is 6 h ahead of Round Rock, TX. 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.
Round Rock, TX 06:45 6:45 AM Lisbon 12:45 12:45 PM You –:–
06:45 6:45 AM
Central Daylight Time · UTC-5
☀️ 07:36 · 🌙 18:57
12:45 12:45 PM
Western European Summer Time · UTC+1
☀️ 07:49 · 🌙 18:56
·
+6 h
Lisbon is 6 h ahead of Round Rock, TX.
When you, Round Rock, TX 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
🇺🇸 Round Rock, TX
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 | 🇺🇸 Round Rock, TX | 🇵🇹 Lisbon |
|---|---|---|
| Local time | 06:45 | 12:45 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Central Daylight Time | Western European Summer Time |
| UTC offset | UTC-5 | UTC+1 |
| Offset from Round Rock, TX | — | +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 | 07:36 | 07:49 |
| Sunset | 18:57 | 18:56 |
| Daylight | 11 h 22 min | 11 h 7 min |
| People on this clock | 119,468 | 545,923 |
Compare Round Rock, TX with another city
More comparisons with Round Rock, TX: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Round Rock, TX and Lisbon: common questions
How many hours ahead of Round Rock, TX, is Lisbon?
The clocks in Lisbon are 6 hours ahead of those in Round Rock (UTC+1 and UTC−5).
What time is it in Lisbon at the start of the working day in Round Rock, TX?
The working day in Round Rock starts at 9:00 AM; in Lisbon it is 3:00 PM at that moment.
What time is it in Lisbon when it is 6:00 PM in Round Rock, TX?
When it is 6:00 PM in Round Rock, it is 12:00 AM (the next day) in Lisbon.
Is there a time when both Round Rock, TX, and Lisbon are at work?
Yes: from 9:00 AM to 12:00 PM in Round Rock (3:00 PM to 6:00 PM in Lisbon), the working days (9:00 AM–6:00 PM) overlap.
From what time in Round Rock, TX, is it tomorrow in Lisbon?
Once it is 6:00 PM in Round Rock, the date in Lisbon has already changed. Until 6:00 AM in Lisbon, it is still the previous day in Round Rock.
Is the time difference between Round Rock, TX, 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 Round Rock.
