Porto to Lạng Sơn time converter
Lạng Sơn is 6 hours ahead of Porto. When it is 9:00 AM in Porto, it is 3:00 PM in Lạng Sơn.
4:29 AM in Porto, Tuesday, October 20, 2026
Porto to Lạng Sơn conversion table
Every hour of today in Porto and the matching time in Lạng Sơn. Light rows are typical working hours (9:00–18:00).
| Porto | Lạng Sơn |
|---|---|
| 12:00 AM | 6:00 AM |
| 1:00 AM | 7:00 AM |
| 2:00 AM | 8:00 AM |
| 3:00 AM | 9:00 AM |
| 4:00 AM | 10:00 AM |
| 5:00 AM | 11:00 AM |
| 6:00 AM | 12:00 PM |
| 7:00 AM | 1:00 PM |
| 8:00 AM | 2:00 PM |
| 9:00 AM | 3:00 PM |
| 10:00 AM | 4:00 PM |
| 11:00 AM | 5:00 PM |
| 12:00 PM | 6:00 PM |
| 1:00 PM | 7:00 PM |
| 2:00 PM | 8:00 PM |
| 3:00 PM | 9:00 PM |
| 4:00 PM | 10:00 PM |
| 5:00 PM | 11:00 PM |
| 6:00 PM | 12:00 AM+1 day |
| 7:00 PM | 1:00 AM+1 day |
| 8:00 PM | 2:00 AM+1 day |
| 9:00 PM | 3:00 AM+1 day |
| 10:00 PM | 4:00 AM+1 day |
| 11:00 PM | 5:00 AM+1 day |
Best time to call or meet
Both sides are at work from 9:00 AM – 12:00 PM in Porto (3:00 PM – 6:00 PM in Lạng Sơn).
Daylight saving time and the difference
The difference changes during the year because Porto and Lạng Sơn switch clocks on different dates:
- Oct 20, 2026 – Oct 25, 2026: +6h
- Oct 25, 2026 – Mar 28, 2027: +7h
- Mar 28, 2027 – Oct 20, 2027: +6h
Distance
Porto and Lạng Sơn are 10,355 km (6,434 miles) apart in a straight line.
More conversions
Questions and answers
What is the time difference between Porto and Lạng Sơn?
Lạng Sơn is 6 hours ahead of Porto.
What time is it in Lạng Sơn when it is 9 AM in Porto?
When it is 9:00 AM in Porto, it is 3:00 PM in Lạng Sơn.
When is the best time to call Lạng Sơn from Porto?
Both sides are at work from 9:00 AM – 12:00 PM in Porto (3:00 PM – 6:00 PM in Lạng Sơn).
Does the time difference between Porto and Lạng Sơn change?
Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.