Offset
The time difference between Porto Alegre and Central Time is 2 hours.
Porto Alegre (BRT) is ahead of Central Time (CDT).
BRT: UTC-3
CDT: UTC-5
Central Time is currently observing daylight saving time; Porto Alegre is not.
When to schedule
Business-hours overlap: 11 AM–5 PM in Porto Alegre (9 AM–3 PM in Central Time).
Both teams are in working hours during this window on weekdays.
Suggested time: 2:00 PM Porto Alegre (12:00 PM Central Time).
This window may shift by an hour during daylight saving time.
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
United States
- New Year's DayThu, Jan 1
- Martin Luther King, Jr. DayMon, Jan 19
- Presidents DayMon, Feb 16
- Memorial DayMon, May 25
- Juneteenth National Independence DayFri, Jun 19
- Independence DayFri, Jul 3
- Labour DayMon, Sep 7
- Columbus DayMon, Oct 12
- Veterans DayWed, Nov 11
- Thanksgiving DayThu, Nov 26
- Christmas DayFri, Dec 25
About these zones
Porto Alegre uses Brasilia Time (BRT). To call Brazil, dial +55.
Central Time is also known as CST, or CDT. To call United States, dial +1.
Central Time is approximately 5,500 miles northwest of Porto Alegre.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Porto Alegre | CST | Day |
|---|---|---|
| 12:00 am | 10:00 pm | -1 day |
| 1:00 am | 11:00 pm | -1 day |
| 2:00 am | 12:00 am | Same day |
| 3:00 am | 1:00 am | Same day |
| 4:00 am | 2:00 am | Same day |
| 5:00 am | 3:00 am | Same day |
| 6:00 am | 4:00 am | Same day |
| 7:00 am | 5:00 am | Same day |
| 8:00 am | 6:00 am | Same day |
| 9:00 am | 7:00 am | Same day |
| 10:00 am | 8:00 am | Same day |
| 11:00 am | 9:00 am | Same day |
| 12:00 pm | 10:00 am | Same day |
| 1:00 pm | 11:00 am | Same day |
| 2:00 pm | 12:00 pm | Same day |
| 3:00 pm | 1:00 pm | Same day |
| 4:00 pm | 2:00 pm | Same day |
| 5:00 pm | 3:00 pm | Same day |
| 6:00 pm | 4:00 pm | Same day |
| 7:00 pm | 5:00 pm | Same day |
| 8:00 pm | 6:00 pm | Same day |
| 9:00 pm | 7:00 pm | Same day |
| 10:00 pm | 8:00 pm | Same day |
| 11:00 pm | 9:00 pm | Same day |
Daylight saving time
Central Time observes daylight saving time; Porto Alegre does not. The offset between the two zones changes when Central Time transitions: on Sunday, November 1, 2026, clocks fall back from CDT to CST.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 7:19 AM
- Sunset
- 5:45 PM
- Day length
- 10h 26m
- Sunrise
- 5:32 AM
- Sunset
- 8:23 PM
- Day length
- 14h 51m
Daylight overlap: 10h 13m — 7:32 AM–5:45 PM in Porto Alegre (5:32 AM–3:45 PM in Central Time). Both locations are in daylight during this window.
Cities in these zones
Other cities in Brasilia Time
Cities in Central 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 Central Time
- GYY
- MDW
- ORD
- HOU
- IAH
- SAT
- DAL
- DFW
- AUS
- BNA
Related conversions
Common conversions
- What is 9:00 am Porto Alegre in CST?
- 9:00 am Porto Alegre is 7:00 am CST.
- What is 12:00 pm Porto Alegre in CST?
- 12:00 pm Porto Alegre is 10:00 am CST.
- What is 12:30 pm Porto Alegre in CST?
- 12:30 pm Porto Alegre is 10:30 am CST.
- What is 2:00 pm Porto Alegre in CST?
- 2:00 pm Porto Alegre is 12:00 pm CST.
- What is 5:00 pm Porto Alegre in CST?
- 5:00 pm Porto Alegre is 3:00 pm CST.
- What is 11:30 pm Porto Alegre in CST?
- 11:30 pm Porto Alegre is 9:30 pm CST.