TIME ZONE CONVERTER
Lisbon to Chennai
Time Converter
Convert Lisbon, Portugal to Chennai, India. Compare dates, seasonal differences and meeting hours.
Lisbon is 4h 30m or 5h 30m behind Chennai in 2026, depending on the date.
9 AM Lisbon = 2:30 PM Chennai
Selected date: November 10, 2026.
THE QUICK REFERENCE
CSVLisbon to Chennai conversion table
November 10, 2026 · Date changes are marked.
View the full 24-hour table
| Lisbon | Chennai |
|---|---|
| 12:00 AM | 5:30 AM |
| 1:00 AM | 6:30 AM |
| 2:00 AM | 7:30 AM |
| 3:00 AM | 8:30 AM |
| 4:00 AM | 9:30 AM |
| 5:00 AM | 10:30 AM |
| 6:00 AM | 11:30 AM |
| 7:00 AM | 12:30 PM |
| 8:00 AM | 1:30 PM |
| 9:00 AM | 2:30 PM |
| 10:00 AM | 3:30 PM |
| 11:00 AM | 4:30 PM |
| Lisbon | Chennai |
|---|---|
| 12:00 PM | 5:30 PM |
| 1:00 PM | 6:30 PM |
| 2:00 PM | 7:30 PM |
| 3:00 PM | 8:30 PM |
| 4:00 PM | 9:30 PM |
| 5:00 PM | 10:30 PM |
| 6:00 PM | 11:30 PM |
| 7:00 PM | 12:30 AM +1 day |
| 8:00 PM | 1:30 AM +1 day |
| 9:00 PM | 2:30 AM +1 day |
| 10:00 PM | 3:30 AM +1 day |
| 11:00 PM | 4:30 AM +1 day |
Starting with the Chennai working day
These examples start on 2026-11-10 in Chennai.
09:00 Chennai03:30 →Lisbon · 2026-11-10
17:00 Chennai11:30 →Lisbon · 2026-11-10
ONE CLOCK TIME. THE WHOLE YEAR.
Year CSV09:00 Lisbon to Chennai throughout 2026
Keeping 09:00 on the Lisbon clock produces 2 different destination clock/date answers in 2026. The ranges below use Lisbon calendar dates, including transition days.
| Dates in Lisbon · 2026 | Chennai answer | Source → destination offsets | Explore |
|---|---|---|---|
| Jan 1 – Mar 2887 dates | 14:30Same date | UTC → UTC+05:30 | |
| Mar 29 – Oct 24210 dates | 13:30Same date | UTC+01:00 → UTC+05:30 | |
| Oct 25 – Dec 3168 dates | 14:30Same date | UTC → UTC+05:30 |
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 Lisbon time become a different date in Chennai?
Your complete source day: 2026-11-10. Each range shows which destination date to use.
Lisbon · 2026-11-1000:00–18:30UTC
Chennai · 2026-11-1005:30–24:00UTC+05:30 Same date
Lisbon · 2026-11-1018:30–24:00UTC
Chennai · 2026-11-1100:00–05:30UTC+05:30 Next day
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 Chennai compares with Lisbon throughout 2026.
JANFEBMARAPRMAYJUNJULAUGSEPOCTNOVDEC
+5h 30m
+4h 30m
+5h 30m
Lisbon changes its UTC offset in 2026. Chennai keeps one UTC offset this year.
See exact change periods
| From (UTC, inclusive) | Until (UTC, exclusive) | Chennai vs Lisbon |
|---|---|---|
| 1 Jan 2026, 00:00 UTC | 29 Mar 2026, 01:00 UTC | 5h 30m ahead |
| 29 Mar 2026, 01:00 UTC | 25 Oct 2026, 01:00 UTC | 4h 30m ahead |
| 25 Oct 2026, 01:00 UTC | 1 Jan 2027, 00:00 UTC | 5h 30m ahead |
CLOCK CHANGES
What changes at the next clock adjustment?
Exact periods outside the most common difference in 2026
The most frequent difference has Chennai 4h 30m ahead relative to Lisbon. Exceptions:
| From (UTC, inclusive) | Until (UTC, exclusive) | Compared with Lisbon |
|---|---|---|
| 1 Jan 2026, 00:00 UTC | 29 Mar 2026, 01:00 UTC | 5h 30m ahead |
| 25 Oct 2026, 01:00 UTC | 1 Jan 2027, 00:00 UTC | 5h 30m ahead |
PLAN BEYOND A SINGLE DAY
Daily CSVLisbon–Chennai working hours through 2026
Every date calculated with your working windows. 261 selected Lisbon workdays; public holidays are not applied.
Least shared time2h 30m
Most common3h 30m
Most shared time3h 30m
Days without a 60-min slot0 / 261
A start time that survives the whole year.
Start a 60-minute meeting in Lisbon 09:00–10:30.
These starts fit both working windows on every selected Lisbon workday in 2026, using a 15-minute start grid. The end of each range is the last valid start.
Lisbon: 09:00–17:00, Mon, Tue, Wed, Thu, Fri. Chennai: 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.
TWO PLACES. ONE CONNECTION.
≈ 9,053 km apartAcross the map. Across the clock.
THE DETAILS THAT MATTER
Lisbon to Chennai: useful answers
Why is the Lisbon to Chennai difference sometimes 4h 30m and sometimes 5h 30m?
Lisbon is 4h 30m or 5h 30m behind Chennai in 2026, depending on the date. Lisbon changes its UTC offset in 2026. Chennai keeps one UTC offset this year.
Does the Lisbon–Chennai 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 Lisbon on 2026-11-10 is 14:30 in Chennai on 2026-11-10. This selected time stays on the same date in both places. Other times can cross midnight.
Can Lisbon and Chennai meet during working hours?
Your selected working windows share 2h 30m 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
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Calculated with IANA 2026e. Working hours are your preferences; public holidays and calendar availability are not included. Our methodology