Lisbon to Rockville, MD: time difference
Rockville, MD 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 04:09 4:09 AM Rockville, MD 23:09 11:09 PM You –:–
04:09 4:09 AM
Western European Summer Time · UTC+1
☀️ 07:43 · 🌙 19:04
23:09 11:09 PM
Eastern Daylight Time · UTC-4
☀️ 07:15 · 🌙 18:37
·
−5 h
Rockville, MD is 5 h behind Lisbon.
When you, Lisbon and Rockville, MD 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
🇺🇸 Rockville, MD
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 | 🇺🇸 Rockville, MD |
|---|---|---|
| Local time | 04:09 | 23:09 |
| Local date | Monday, October 12, 2026 | Sunday, October 11, 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 | 07:43 | 07:15 |
| Sunset | 19:04 | 18:37 |
| Daylight | 11 h 21 min | 11 h 23 min |
| People on this clock | 545,923 | 67,139 |
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 Rockville, MD: common questions
How far behind Lisbon is Rockville, MD?
Rockville is 5 hours behind Lisbon: UTC−4 against UTC+1.
What time is it in Rockville, MD, when it is 9:00 AM in Lisbon?
When it is 9:00 AM in Lisbon, it is 4:00 AM in Rockville.
What time is it in Rockville, MD, at the end of the working day in Lisbon?
The working day in Lisbon ends at 6:00 PM; in Rockville it is 1:00 PM at that moment.
When is a good time to call Rockville, MD, from Lisbon?
Between 2:00 PM and 6:00 PM in Lisbon – that is 9:00 AM to 1:00 PM in Rockville – both places are within working hours (9:00 AM–6:00 PM).
When does the date change in Rockville, MD, compared with Lisbon?
The new day starts in Rockville later: until 5:00 AM in Lisbon, it is still the previous day there. From 7:00 PM in Rockville, Lisbon is already on the next day.
Does the time gap between Lisbon and Rockville, MD, change during the year?
Yes, because the clocks in Lisbon and in Rockville change on different dates. Next change: from October 25, 2026, Rockville will be 4 hours behind Lisbon.
