London to Teresina Time Difference
Teresina is 4 hours behind London. When it is noon in London, it is 08:00 in Teresina.
London (UTC+1) → Fortaleza (UTC-3)
🕐 Interactive Time Explorer
When it's 23:00 in London, it's 19:00 in Teresina
Drag the slider to see corresponding times in both cities
🤝 Best Meeting Times
London & Teresina✓ Perfect Match (4 hours)
◐ Extended Hours (6 hours)
✈️ Travel Information
Distance
7,480 km
Est. Flight Time
~9.8h
Time Difference
-4h
Work Hours Overlap
4h
Good
🔴 Office Closed
Today 13:00
13:00 - 17:00
⏰ Quick Conversion
06:00
London
02:00
Teresina
09:00
London
05:00
Teresina
12:00
London
08:00
Teresina
15:00
London
11:00
Teresina
18:00
London
14:00
Teresina
21:00
London
17:00
Teresina
00:00
London
20:00
Teresina (-1)
03:00
London
23:00
Teresina (-1)
Frequently Asked Questions
How many hours is London ahead of Teresina?
Teresina is 4 hours behind London. When it is 12:00 noon in London, it is 08:00 in Teresina. London operates on Europe/London (UTC+1), while Teresina uses America/Fortaleza (UTC-3).
What is the best time to call Teresina from London?
There are 5 hours of overlapping business time (9 AM–5 PM) between London and Teresina. The best window is 13:00–18:00 London time (09:00–14:00 in Teresina).
Does the London to Teresina time difference change throughout the year?
The time difference can shift by up to one hour when either city observes Daylight Saving Time (DST). DST transition dates differ between countries — typically March/April in the Northern Hemisphere and October in the Southern Hemisphere. Always verify the live difference above when scheduling important meetings near DST changeover dates.
Flying between London and Teresina
The distance between London and Teresina is approximately 7,480 km. A direct flight typically takes around 9.8 hours. Your arrival clock will show local Teresina time — use our Flight Time Calculator to predict exact arrival times.