Porto to San Luis time converter
San Luis is 4 hours behind Porto. When it is 9:00 AM in Porto, it is 5:00 AM in San Luis.
9:54 PM in Porto, Tuesday, October 20, 2026
Porto to San Luis conversion table
Every hour of today in Porto and the matching time in San Luis. Light rows are typical working hours (9:00–18:00).
| Porto | San Luis |
|---|---|
| 12:00 AM | 8:00 PM−1 day |
| 1:00 AM | 9:00 PM−1 day |
| 2:00 AM | 10:00 PM−1 day |
| 3:00 AM | 11:00 PM−1 day |
| 4:00 AM | 12:00 AM |
| 5:00 AM | 1:00 AM |
| 6:00 AM | 2:00 AM |
| 7:00 AM | 3:00 AM |
| 8:00 AM | 4:00 AM |
| 9:00 AM | 5:00 AM |
| 10:00 AM | 6:00 AM |
| 11:00 AM | 7:00 AM |
| 12:00 PM | 8:00 AM |
| 1:00 PM | 9:00 AM |
| 2:00 PM | 10:00 AM |
| 3:00 PM | 11:00 AM |
| 4:00 PM | 12:00 PM |
| 5:00 PM | 1:00 PM |
| 6:00 PM | 2:00 PM |
| 7:00 PM | 3:00 PM |
| 8:00 PM | 4:00 PM |
| 9:00 PM | 5:00 PM |
| 10:00 PM | 6:00 PM |
| 11:00 PM | 7:00 PM |
Best time to call or meet
Both sides are at work from 1:00 PM – 6:00 PM in Porto (9:00 AM – 2:00 PM in San Luis).
Daylight saving time and the difference
The difference changes during the year because Porto and San Luis switch clocks on different dates:
- Oct 20, 2026 – Oct 25, 2026: -4h
- Oct 25, 2026 – Mar 28, 2027: -3h
- Mar 28, 2027 – Oct 20, 2027: -4h
Distance
Porto and San Luis are 10,167 km (6,317 miles) apart in a straight line.
More conversions
Questions and answers
What is the time difference between Porto and San Luis?
San Luis is 4 hours behind Porto.
What time is it in San Luis when it is 9 AM in Porto?
When it is 9:00 AM in Porto, it is 5:00 AM in San Luis.
When is the best time to call San Luis from Porto?
Both sides are at work from 1:00 PM – 6:00 PM in Porto (9:00 AM – 2:00 PM in San Luis).
Does the time difference between Porto and San Luis change?
Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.