Time difference between Lisbon and Chicago
Chicago is 6 hours behind Lisbon
Lisbon, Portugal is UTC · Chicago, the United States is UTC−6 — on standard time
The gap is not the same all year
Every converter gives one number for this pair. That number is right for most of the year and wrong for part of it, because Lisbon goes forward on the last Sunday in March and back on the last Sunday in October and Chicago goes forward on the second Sunday in March and back on the first Sunday in November.
| Lisbon / Chicago clocks | Difference | How long |
|---|---|---|
| summer / summer, standard / standard | 6 hours behind | about 48 weeks — most of the year |
| standard / summer | 5 hours behind | about 4 weeks |
Both change their clocks and both are in the northern hemisphere, but not on the same weekend — Lisbon goes forward on the last Sunday in March and Chicago on the second Sunday in March. For the days in between, the gap is neither party's expected figure, and a standing meeting silently moves by an hour. That mismatch is a common cause of a missed international call.
When they can both be at their desks
Nine-to-five in both cities overlaps for 2 hours — 3:00 PM to 5:00 PM in Lisbon, the same moment as 9:00 AM to 11:00 AM in Chicago.
Lisbon to Chicago, hour by hour
| Lisbon | Chicago |
|---|---|
| 12:00 AM | 6:00 PM (previous day) |
| 1:00 AM | 7:00 PM (previous day) |
| 2:00 AM | 8:00 PM (previous day) |
| 3:00 AM | 9:00 PM (previous day) |
| 4:00 AM | 10:00 PM (previous day) |
| 5:00 AM | 11:00 PM (previous day) |
| 6:00 AM | 12:00 AM |
| 7:00 AM | 1:00 AM |
| 8:00 AM | 2:00 AM |
| 9:00 AM | 3:00 AM |
| 10:00 AM | 4:00 AM |
| 11:00 AM | 5:00 AM |
| 12:00 PM | 6:00 AM |
| 1:00 PM | 7:00 AM |
| 2:00 PM | 8:00 AM |
| 3:00 PM | 9:00 AM |
| 4:00 PM | 10:00 AM |
| 5:00 PM | 11:00 AM |
| 6:00 PM | 12:00 PM |
| 7:00 PM | 1:00 PM |
| 8:00 PM | 2:00 PM |
| 9:00 PM | 3:00 PM |
| 10:00 PM | 4:00 PM |
| 11:00 PM | 5:00 PM |
On the usual gap of 6 hours.
Frequently asked questions
What is the time difference between Lisbon and Chicago?
Chicago is 6 hours behind Lisbon for most of the year. It is not the same all year — there is one other gap, because Lisbon goes forward on the last Sunday in March and back on the last Sunday in October and Chicago goes forward on the second Sunday in March and back on the first Sunday in November.
Is Chicago ahead of Lisbon?
No — Chicago is 6 hours behind. Lisbon is UTC and Chicago is UTC−6 on standard time.
What time is 9 AM in Lisbon in Chicago?
3:00 AM, on the usual gap.
When can Lisbon and Chicago meet?
Standard nine-to-five hours overlap for 2 hours: 3:00 PM–5:00 PM in Lisbon, which is 9:00 AM–11:00 AM in Chicago.
Other pairs
- Lisbon to Mexico City
- Lisbon to Denver
- Lisbon to Los Angeles
- Lisbon to Vancouver
- Lisbon to Anchorage
- Lisbon to Honolulu
- Lisbon to São Paulo
- Lisbon to Buenos Aires
- Lisbon to Lima
- Lisbon to Lagos
Every Lisbon pair · Every Chicago pair · All city pairs · Time zones by abbreviation