Central European Time
CET means UTC+01:00 throughout the year.
TIME ZONE CONVERTER
CET to Lisbon
Time Converter
Convert Central European Time to Lisbon, Portugal. Compare dates, seasonal differences and meeting hours.
CET is 0h or 1h ahead of Lisbon in 2026, depending on the date.
9 AM CET = 8 AM Lisbon
Selected date: November 10, 2026. Fixed abbreviations retain their stated UTC offsets.
THE QUICK REFERENCE
CSVCET to Lisbon conversion table
November 10, 2026 · Date changes are marked.
View the full 24-hour table
| CET | Lisbon |
|---|---|
| 12:00 AM | 11:00 PM -1 day |
| 1:00 AM | 12:00 AM |
| 2:00 AM | 1:00 AM |
| 3:00 AM | 2:00 AM |
| 4:00 AM | 3:00 AM |
| 5:00 AM | 4:00 AM |
| 6:00 AM | 5:00 AM |
| 7:00 AM | 6:00 AM |
| 8:00 AM | 7:00 AM |
| 9:00 AM | 8:00 AM |
| 10:00 AM | 9:00 AM |
| 11:00 AM | 10:00 AM |
| CET | Lisbon |
|---|---|
| 12:00 PM | 11:00 AM |
| 1:00 PM | 12:00 PM |
| 2:00 PM | 1:00 PM |
| 3:00 PM | 2:00 PM |
| 4:00 PM | 3:00 PM |
| 5:00 PM | 4:00 PM |
| 6:00 PM | 5:00 PM |
| 7:00 PM | 6:00 PM |
| 8:00 PM | 7:00 PM |
| 9:00 PM | 8:00 PM |
| 10:00 PM | 9:00 PM |
| 11:00 PM | 10:00 PM |
Starting with the Lisbon working day
These examples start on 2026-11-10 in Lisbon.
09:00 Lisbon10:00 →CET · 2026-11-10
17:00 Lisbon18:00 →CET · 2026-11-10
Which time-zone meaning are we using?
ONE CLOCK TIME. THE WHOLE YEAR.
Year CSV09:00 CET to Lisbon throughout 2026
Keeping 09:00 on the CET clock produces 2 different destination clock/date answers in 2026. The ranges below use CET calendar dates, including transition days.
| Dates in CET · 2026 | Lisbon answer | Source → destination offsets | Explore |
|---|---|---|---|
| Jan 1 – Mar 2887 dates | 08:00Same date | UTC+01:00 → UTC | |
| Mar 29 – Oct 24210 dates | 09:00Same date | UTC+01:00 → UTC+01:00 | |
| Oct 25 – Dec 3168 dates | 08:00Same date | UTC+01:00 → UTC |
Every calendar date is included, not just workdays. Date ranges include both endpoints. Based on IANA 2026e; future rules may change.
DON’T LOSE A DAY
When does CET time become a different date in Lisbon?
Your complete source day: 2026-11-10. Each range shows which destination date to use.
CET · 2026-11-1000:00–01:00UTC+01:00
Lisbon · 2026-11-0923:00–24:00UTC Previous day
CET · 2026-11-1001:00–24:00UTC+01:00
Lisbon · 2026-11-1000:00–23:00UTC Same date
Range starts are included; ends are excluded. 24:00 means midnight at the end of that date. Repeated hours appear separately with their UTC offsets. The strip is proportional to elapsed time.
THE BIGGER PICTURE
2026A year of time differences.
How Lisbon compares with CET throughout 2026.
JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC
−1h
0h
−1h
Lisbon changes its UTC offset in 2026. CET is a fixed offset.
See exact change periods
| From (UTC, inclusive) | Until (UTC, exclusive) | Lisbon vs CET |
|---|---|---|
| 1 Jan 2026, 00:00 UTC | 29 Mar 2026, 01:00 UTC | 1h behind |
| 29 Mar 2026, 01:00 UTC | 25 Oct 2026, 01:00 UTC | 0h difference |
| 25 Oct 2026, 01:00 UTC | 1 Jan 2027, 00:00 UTC | 1h behind |
CLOCK CHANGES
What changes at the next clock adjustment?
Exact periods outside the most common difference in 2026
The most frequent difference has Lisbon the same time relative to CET. Exceptions:
| From (UTC, inclusive) | Until (UTC, exclusive) | Compared with CET |
|---|---|---|
| 1 Jan 2026, 00:00 UTC | 29 Mar 2026, 01:00 UTC | 1h behind |
| 25 Oct 2026, 01:00 UTC | 1 Jan 2027, 00:00 UTC | 1h behind |
PLAN BEYOND A SINGLE DAY
Daily CSVCET–Lisbon working hours through 2026
Every date calculated with your working windows. 261 selected CET workdays; public holidays are not applied.
Least shared time7h
Most common8h
Most shared time8h
Days without a 60-min slot0 / 261
A start time that survives the whole year.
Start a 60-minute meeting in CET 10:00–16:00.
These starts fit both working windows on every selected CET workday in 2026, using a 15-minute start grid. The end of each range is the last valid start.
CET: 09:00–17:00, Mon, Tue, Wed, Thu, Fri. Lisbon: 09:00–17:00, Mon, Tue, Wed, Thu, Fri.
Calculation details and repeated hours
Overnight shifts belong to their start weekday. Host workday means the source calendar date. Repeated local times use the first occurrence.
THE DETAILS THAT MATTER
CET to Lisbon: useful answers
Why is the CET to Lisbon difference sometimes 0 hours and sometimes 1 hour?
CET is 0h or 1h ahead of Lisbon in 2026, depending on the date. Lisbon changes its UTC offset in 2026. CET is a fixed offset.
Does the CET–Lisbon time difference change in 2026?
The published rules produce 3 periods with 2 different offsets in 2026. See the annual chart for the exact boundaries of each period.
Does this conversion change the calendar date?
09:00 in CET on 2026-11-10 is 08:00 in Lisbon on 2026-11-10. This selected time stays on the same date in both places. Other times can cross midnight.
Can CET and Lisbon meet during working hours?
Your selected working windows share 7h on 2026-11-10. The planner above checks the whole meeting duration and shows suitable start times. Edit the windows to match your team.
Related time-zone meanings and conversions
Calculated with IANA 2026e. Working hours are your preferences; public holidays and calendar availability are not included. Our methodology