California, USA
PST
12am
3am
6am
9am
12pm
3pm
6pm
9pm
Brazil
BRT
12am
3am
6am
9am
12pm
3pm
6pm
9pm

Compare South San Francisco time with Porto Alegre time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.

Time Difference

PST (Pacific Standard Time) is 5 hours behind BRT (Brasilia Time)
4:00 am04:00 in South San Francisco, CA, USA is 9:00 am09:00 in Porto Alegre, Brazil

South San Francisco to Porto Alegre call time
Best time for a conference call or a meeting is between 9am-12pm in South San Francisco which corresponds to 2pm-5pm in Porto Alegre

4:00 am04:00 PST (Pacific Standard Time) (South San Francisco, CA, USA). Offset UTC -8:00 hours
9:00 am09:00 BRT (Brasilia Time) (Porto Alegre, Brazil). Offset UTC -3:00 hours

4:00 am04:00 South San Francisco, CA, USA / 9:00 am09:00 Porto Alegre, Brazil

South San Francisco, CA, USAPorto Alegre, Brazil
12am (midnight)5am
1am6am
2am7am
3am8am
4am9am
5am10am
6am11am
7am12pm (noon)
8am1pm
9am2pm
10am3pm
11am4pm
12pm (noon)5pm
1pm6pm
2pm7pm
3pm8pm
4pm9pm
5pm10pm
6pm11pm
7pm12am (midnight)
8pm1am
9pm2am
10pm3am
11pm4am
00:0005:00
01:0006:00
02:0007:00
03:0008:00
04:0009:00
05:0010:00
06:0011:00
07:0012:00
08:0013:00
09:0014:00
10:0015:00
11:0016:00
12:0017:00
13:0018:00
14:0019:00
15:0020:00
16:0021:00
17:0022:00
18:0023:00
19:0000:00
20:0001:00
21:0002:00
22:0003:00
23:0004:00

South San Francisco Information

Time Zone

Abbreviation / Name
PDT - Pacific Daylight Time
PST - Pacific Standard Time
UTC / GMT Offset
-7:00 hours during Pacific Daylight Time, currently in use.
-8:00 hours during Pacific Standard Time.
Daylight Saving Time Change
+1:00 hour - DST is in use
Daylight Saving Time Starts
Daylight saving time clock moves forward for one hour from 2am to 3amSunday, March 8, 2026 at 2:00 am local time. DST starts annually on the 2nd Sunday of March. Clocks are turned forward 1 hour to Sunday, March 8, 2026 at 3:00 am local daylight time instead. Also called Spring Forward or Summer Time.
Daylight Saving Time Ends
Daylight saving time clock moves back for one hour from 2am to 1amSunday, November 1, 2026 at 2:00 am local time. DST ends annually on the 1st Sunday of November. Clocks are turned backward 1 hour to Sunday, November 1, 2026 at 1:00 am local standard time instead. Also called Fall Back or switch to Winter Time.

South San Francisco Facts

Country
USA
State
California
Alternative Names
Baden, Juzhen San Francisko, Saus-San-Francisko, Saut San Francisko, South San Francisco, nan jiu jin shan, sa'utha syana phransisko, saususanfuranshisuko, swt san fransyskw kalyfrnya, swwth san fransyskw, Саус-Сан-Франциско, Саут Сан Франциско, Южен Сан Франциско, سوت سان فرانسیسکو، کالیفرنیا, سووث سان فرانسيسكو, साउथ स्यान फ्रान्सिस्को, サウスサンフランシスコ, 南旧金山, 南舊金山
Population
67,271
Currency
Dollar (USD)
Geographic Coordinates
37° 39' N Latitude / 122° 24' W Longitude
International Dialing Code
+1

Porto Alegre Information

Time Zone

Abbreviation / Name
BRT - Brasília time
UTC / GMT Offset
-3:00 hours during Brasília time, currently in use.

Porto Alegre Facts

Country
Brazil
Alternative Names
POA, Porto Alegre, Porto Alegri, Porto Alegrė, Porto Alenkre, Porto de Sao Francisco dos Casaes, Porto-Alegro, Portu-Alegre, Portu-Alegri, Portu-Alegry, Portualegri, Portus Alacer, Puerto Alegre, Pôrto de São Francisco dos Casaes, a lei ge li gang, bwrtw alyghry, parto alegre, poleutuallegeuli, portu alegri, pwrtw algrh, Πόρτο Αλέγκρε, Порто Алегре, Порто Алегри, Порту-Алегре, Порту-Алегри, Порту-Алегры, Порту-Алегрі, פורטו אלגרה, بورتو أليغري, پورتو الگره, پورتو الیگرے, पोर्तू अलेग्री, পর্টো আলেগ্রে, პორტუ-ალეგრი, ポルト・アレグレ, 阿雷格里港, 포르투알레그리
Population
1,372,741
Currency
Real (BRL)
Geographic Coordinates
30° 01' S Latitude / 51° 13' W Longitude
International Dialing Code
+55