Clockjumper

Time difference

Brasília to San Francisco Time Difference

San Francisco is 4 hours behind Brasília — when it's 12:00 PM in Brasília, it's 8:00 AM in San Francisco. (Brasília (America/Sao_Paulo, BRT); San Francisco (America/Los_Angeles, PDT).) Below: live local times, the best hours for a call, a full conversion table, and exact daylight-saving dates.

Quick answer

San Francisco is 4 hours behind Brasília. The best window for a call is 1 PM–5 PM in Brasília, which is 9 AM–1 PM in San Francisco — a 4-hour overlap inside 9 AM–5 PM on both sides. Clocks change on November 1, 2026, which briefly shifts the gap between Brasília and San Francisco — the converter on this page always reflects the correct offset for the date you pick.

  • When it's 9:00 AM in Brasília, it's 5:00 AM in San Francisco.
  • When it's 9:00 AM in San Francisco, it's 1:00 PM in Brasília.

San Francisco is currently 4 hours behind Brasília.

Brasília • BRT
7:58 PM
Sunday, Aug 23
San Francisco • PDT
3:58 PM
Sunday, Aug 23

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Best times to meet

The 9 AM – 5 PM business windows in Brasília and San Francisco overlap for 4 hours. 1 PM–5 PM in Brasília is 9 AM–1 PM in San Francisco. Aim somewhere in the middle of that window so neither side starts cold or finishes drained.

Quick conversion table

BrasíliaSan Francisco
12 AM8:00 PM (prev day)
1 AM9:00 PM (prev day)
2 AM10:00 PM (prev day)
3 AM11:00 PM (prev day)
4 AM12:00 AM
5 AM1:00 AM
6 AM2:00 AM
7 AM3:00 AM
8 AM4:00 AM
9 AM5:00 AM
10 AM6:00 AM
11 AM7:00 AM
12 PM8:00 AM
1 PM9:00 AM
2 PM10:00 AM
3 PM11:00 AM
4 PM12:00 PM
5 PM1:00 PM
6 PM2:00 PM
7 PM3:00 PM
8 PM4:00 PM
9 PM5:00 PM
10 PM6:00 PM
11 PM7:00 PM

Daylight saving

On November 1, 2026, San Francisco shifts for daylight saving. After that, San Francisco will be 5 hours behind Brasília (currently 4 hours behind Brasília). The converter and the tables above always reflect the correct offset for the date you pick.

  • Brasília does not observe daylight saving time.
  • San Francisco is currently observing daylight saving time.

Frequently asked questions

Is San Francisco ahead of or behind Brasília?
San Francisco is 4 hours behind Brasília.
How many hours behind Brasília is San Francisco?
San Francisco is 4 hours behind Brasília.
What time is 9 AM in Brasília in San Francisco?
9:00 AM in Brasília is 5:00 AM in San Francisco.
What time is noon in Brasília in San Francisco?
12:00 PM in Brasília is 8:00 AM in San Francisco.
What time is 5 PM in Brasília in San Francisco?
5:00 PM in Brasília is 1:00 PM in San Francisco. Useful for end-of-day handoffs between the two offices.
What time is 3 PM in Brasília in San Francisco?
3:00 PM in Brasília is 11:00 AM in San Francisco.
Is Brasília currently observing daylight saving time?
Brasília does not observe daylight saving time — its UTC offset stays the same all year.
Is San Francisco currently observing daylight saving time?
San Francisco is currently observing daylight saving time (summer time).
Do Brasília and San Francisco observe daylight saving?
On November 1, 2026, San Francisco shifts for daylight saving. After that, San Francisco will be 5 hours behind Brasília (currently 4 hours behind Brasília). The converter and the tables above always reflect the correct offset for the date you pick.
When is the best time to call San Francisco from Brasília?
Aim for 1 PM–5 PM in Brasília, which is 9 AM–1 PM in San Francisco.
When is the best time to call Brasília from San Francisco?
Aim for 9 AM–1 PM in San Francisco, which is 1 PM–5 PM in Brasília.
Brasília (BRT) to San Francisco (PDT) — how do I convert quickly?
Subtract 4 hours from Brasília local time to get San Francisco local time. Or use the converter at the top of this page — it stays accurate through daylight-saving changes automatically.

Other conversions

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