Porto to Changdao time converter
Changdao is 7 hours ahead of Porto. When it is 9:00 AM in Porto, it is 4:00 PM in Changdao.
3:12 PM in Porto, Tuesday, October 20, 2026
Porto to Changdao conversion table
Every hour of today in Porto and the matching time in Changdao. Light rows are typical working hours (9:00–18:00).
| Porto | Changdao |
|---|---|
| 12:00 AM | 7:00 AM |
| 1:00 AM | 8:00 AM |
| 2:00 AM | 9:00 AM |
| 3:00 AM | 10:00 AM |
| 4:00 AM | 11:00 AM |
| 5:00 AM | 12:00 PM |
| 6:00 AM | 1:00 PM |
| 7:00 AM | 2:00 PM |
| 8:00 AM | 3:00 PM |
| 9:00 AM | 4:00 PM |
| 10:00 AM | 5:00 PM |
| 11:00 AM | 6:00 PM |
| 12:00 PM | 7:00 PM |
| 1:00 PM | 8:00 PM |
| 2:00 PM | 9:00 PM |
| 3:00 PM | 10:00 PM |
| 4:00 PM | 11:00 PM |
| 5:00 PM | 12:00 AM+1 day |
| 6:00 PM | 1:00 AM+1 day |
| 7:00 PM | 2:00 AM+1 day |
| 8:00 PM | 3:00 AM+1 day |
| 9:00 PM | 4:00 AM+1 day |
| 10:00 PM | 5:00 AM+1 day |
| 11:00 PM | 6:00 AM+1 day |
Best time to call or meet
Both sides are at work from 9:00 AM – 11:00 AM in Porto (4:00 PM – 6:00 PM in Changdao).
Daylight saving time and the difference
The difference changes during the year because Porto and Changdao switch clocks on different dates:
- Oct 20, 2026 – Oct 25, 2026: +7h
- Oct 25, 2026 – Mar 28, 2027: +8h
- Mar 28, 2027 – Oct 20, 2027: +7h
Distance
Porto and Changdao are 9,260 km (5,754 miles) apart in a straight line.
More conversions
Questions and answers
What is the time difference between Porto and Changdao?
Changdao is 7 hours ahead of Porto.
What time is it in Changdao when it is 9 AM in Porto?
When it is 9:00 AM in Porto, it is 4:00 PM in Changdao.
When is the best time to call Changdao from Porto?
Both sides are at work from 9:00 AM – 11:00 AM in Porto (4:00 PM – 6:00 PM in Changdao).
Does the time difference between Porto and Changdao change?
Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.