Offset
The time difference between Porto Alegre and Shanghai is 11 hours.
Porto Alegre (BRT) is behind Shanghai (CST).
BRT: UTC-3
CST: UTC+8
Neither Porto Alegre nor Shanghai is currently observing daylight saving time.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Porto Alegre and Shanghai don't overlap on the same weekday. Shanghai is 11 hours ahead of Porto Alegre.
With some flexibility, there’s a workable window outside standard hours:
- 7 AM–9 AM in Porto Alegre (6 PM–8 PM in Shanghai) — suggest 8:00 AM Porto Alegre (7:00 PM Shanghai).
This means an early start or late finish for one side, but it’s a reasonable slot for a one-off meeting.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
Brazil
- New Year's DayThu, Jan 1
- CarnivalMon, Feb 16
- CarnivalTue, Feb 17
- Good FridayFri, Apr 3
- Easter SundaySun, Apr 5
- TiradentesTue, Apr 21
- Labour DayFri, May 1
- Corpus ChristiThu, Jun 4
- Independence DayMon, Sep 7
- Our Lady of AparecidaMon, Oct 12
- All Souls' DayMon, Nov 2
- Republic Proclamation DaySun, Nov 15
- Black Awareness DayFri, Nov 20
- Christmas DayFri, Dec 25
China
- New Year's DayThu, Jan 1
- Chinese New Year (Spring Festival)Tue, Feb 17
- Labour DayFri, May 1
- Dragon Boat FestivalFri, Jun 19
- Mid-Autumn FestivalFri, Sep 25
- National DayThu, Oct 1
About these zones
Porto Alegre uses Brasilia Time (BRT). To call Brazil, dial +55.
Shanghai uses China Standard Time (CST). To call China, dial +86.
Shanghai is approximately 12,000 miles east of Porto Alegre.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Porto Alegre | Shanghai | Day |
|---|---|---|
| 12:00 am | 11:00 am | Same day |
| 1:00 am | 12:00 pm | Same day |
| 2:00 am | 1:00 pm | Same day |
| 3:00 am | 2:00 pm | Same day |
| 4:00 am | 3:00 pm | Same day |
| 5:00 am | 4:00 pm | Same day |
| 6:00 am | 5:00 pm | Same day |
| 7:00 am | 6:00 pm | Same day |
| 8:00 am | 7:00 pm | Same day |
| 9:00 am | 8:00 pm | Same day |
| 10:00 am | 9:00 pm | Same day |
| 11:00 am | 10:00 pm | Same day |
| 12:00 pm | 11:00 pm | Same day |
| 1:00 pm | 12:00 am | +1 day |
| 2:00 pm | 1:00 am | +1 day |
| 3:00 pm | 2:00 am | +1 day |
| 4:00 pm | 3:00 am | +1 day |
| 5:00 pm | 4:00 am | +1 day |
| 6:00 pm | 5:00 am | +1 day |
| 7:00 pm | 6:00 am | +1 day |
| 8:00 pm | 7:00 am | +1 day |
| 9:00 pm | 8:00 am | +1 day |
| 10:00 pm | 9:00 am | +1 day |
| 11:00 pm | 10:00 am | +1 day |
Daylight saving time
Neither Porto Alegre nor Shanghai observes daylight saving time. The offset between these zones remains constant year-round.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 7:16 AM
- Sunset
- 5:48 PM
- Day length
- 10h 32m
- Sunrise
- 5:06 AM
- Sunset
- 6:56 PM
- Day length
- 13h 50m
Daylight overlap: 40m — 7:16 AM–7:56 AM in Porto Alegre (6:16 PM–6:56 PM in Shanghai). Both locations are in daylight during this window.
Cities in these zones
Other cities in Brasilia Time
Other cities in China Standard Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Brasilia Time
- CGH
- GRU
- GIG
- SDU
- CNF
- BSB
- CWB
- GYN
- POA
Airports in China Standard Time
- PVG
- SHA
- PEK
- PKX
- SZX
- CAN
- FUO
- CTU
- TFU
- TSN
Related conversions
Common conversions
- What is 9:00 am Porto Alegre in Shanghai?
- 9:00 am Porto Alegre is 8:00 pm Shanghai.
- What is 12:00 pm Porto Alegre in Shanghai?
- 12:00 pm Porto Alegre is 11:00 pm Shanghai.
- What is 12:30 pm Porto Alegre in Shanghai?
- 12:30 pm Porto Alegre is 11:30 pm Shanghai.
- What is 2:00 pm Porto Alegre in Shanghai?
- 2:00 pm Porto Alegre is 1:00 am Shanghai, the next day.
- What is 5:00 pm Porto Alegre in Shanghai?
- 5:00 pm Porto Alegre is 4:00 am Shanghai, the next day.
- What is 11:30 pm Porto Alegre in Shanghai?
- 11:30 pm Porto Alegre is 10:30 am Shanghai, the next day.