União to London time converter
London is 4 hours ahead of União. When it is 9:00 AM in União, it is 1:00 PM in London.
12:23 PM in União, Tuesday, October 20, 2026
União to London conversion table
Every hour of today in União and the matching time in London. Light rows are typical working hours (9:00–18:00).
| União | London |
|---|---|
| 12:00 AM | 4:00 AM |
| 1:00 AM | 5:00 AM |
| 2:00 AM | 6:00 AM |
| 3:00 AM | 7:00 AM |
| 4:00 AM | 8:00 AM |
| 5:00 AM | 9:00 AM |
| 6:00 AM | 10:00 AM |
| 7:00 AM | 11:00 AM |
| 8:00 AM | 12:00 PM |
| 9:00 AM | 1:00 PM |
| 10:00 AM | 2:00 PM |
| 11:00 AM | 3:00 PM |
| 12:00 PM | 4:00 PM |
| 1:00 PM | 5:00 PM |
| 2:00 PM | 6:00 PM |
| 3:00 PM | 7:00 PM |
| 4:00 PM | 8:00 PM |
| 5:00 PM | 9:00 PM |
| 6:00 PM | 10:00 PM |
| 7:00 PM | 11:00 PM |
| 8:00 PM | 12:00 AM+1 day |
| 9:00 PM | 1:00 AM+1 day |
| 10:00 PM | 2:00 AM+1 day |
| 11:00 PM | 3:00 AM+1 day |
Best time to call or meet
Both sides are at work from 9:00 AM – 2:00 PM in União (1:00 PM – 6:00 PM in London).
Daylight saving time and the difference
The difference changes during the year because União and London switch clocks on different dates:
- Oct 20, 2026 – Oct 24, 2026: +4h
- Oct 24, 2026 – Mar 27, 2027: +3h
- Mar 27, 2027 – Oct 20, 2027: +4h
Distance
União and London are 7,434 km (4,619 miles) apart in a straight line.
More conversions
Questions and answers
What is the time difference between União and London?
London is 4 hours ahead of União.
What time is it in London when it is 9 AM in União?
When it is 9:00 AM in União, it is 1:00 PM in London.
When is the best time to call London from União?
Both sides are at work from 9:00 AM – 2:00 PM in União (1:00 PM – 6:00 PM in London).
Does the time difference between União and London change?
Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.