Porto to Sim time converter
Sim is 4 hours ahead of Porto. When it is 9:00 AM in Porto, it is 1:00 PM in Sim.
3:01 PM in Porto, Saturday, October 17, 2026
Porto to Sim conversion table
Every hour of today in Porto and the matching time in Sim. Light rows are typical working hours (9:00–18:00).
| Porto | Sim |
|---|---|
| 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 Porto (1:00 PM – 6:00 PM in Sim).
Daylight saving time and the difference
The difference changes during the year because Porto and Sim switch clocks on different dates:
- Oct 17, 2026 – Oct 25, 2026: +4h
- Oct 25, 2026 – Mar 28, 2027: +5h
- Mar 28, 2027 – Oct 17, 2027: +4h
Distance
Porto and Sim are 4,955 km (3,079 miles) apart in a straight line.
More conversions
Questions and answers
What is the time difference between Porto and Sim?
Sim is 4 hours ahead of Porto.
What time is it in Sim when it is 9 AM in Porto?
When it is 9:00 AM in Porto, it is 1:00 PM in Sim.
When is the best time to call Sim from Porto?
Both sides are at work from 9:00 AM – 2:00 PM in Porto (1:00 PM – 6:00 PM in Sim).
Does the time difference between Porto and Sim change?
Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.