Time zone
Pacific Standard Time (PST), UTC−8. IANA zone America/Los_Angeles.
Tuesday, November 3, 2026
PST · UTC−8 Pacific Standard Time
Pacific Standard Time (PST), UTC−8. IANA zone America/Los_Angeles.
Sunday, March 14, 2027: clocks go forward 1 hour at 2:00 AM local time (UTC−8 → UTC−7).
Sunnyvale, California, United States. Coordinates 37.37° N, 122.04° W; population about 155,805.
Calculated for the city centre at sea level; accurate to about a minute. Golden hour is when the sun is between 4° below and 6° above the horizon; blue hour between 6° and 4° below. See the whole month or another date.
Hour comparison appears when this page finishes loading.
| City | Local time | Difference from Sunnyvale |
|---|---|---|
| New York City, New York | 7:00 AM | 3 hours ahead of Sunnyvale |
| Chicago, Illinois | 6:00 AM | 2 hours ahead of Sunnyvale |
| Denver, Colorado | 5:00 AM | 1 hour ahead of Sunnyvale |
| Phoenix, Arizona | 5:00 AM | 1 hour ahead of Sunnyvale |
| Honolulu, Hawaii | 2:00 AM | 2 hours behind Sunnyvale |
| Anchorage, Alaska | 3:00 AM | 1 hour behind Sunnyvale |
| Toronto, Canada | 7:00 AM | 3 hours ahead of Sunnyvale |
| Vancouver, Canada | 5:00 AM | 1 hour ahead of Sunnyvale |
| Mexico City, Mexico | 6:00 AM | 2 hours ahead of Sunnyvale |
| São Paulo, Brazil | 9:00 AM | 5 hours ahead of Sunnyvale |
| Buenos Aires, Argentina | 9:00 AM | 5 hours ahead of Sunnyvale |
| London, United Kingdom | 12:00 PM | 8 hours ahead of Sunnyvale |
| Dublin, Ireland | 12:00 PM | 8 hours ahead of Sunnyvale |
| Paris, France | 1:00 PM | 9 hours ahead of Sunnyvale |
Sunnyvale uses Pacific Standard Time (PST, UTC−8) as standard time and Pacific Daylight Time (PDT, UTC−7) during daylight saving time. Its IANA time-zone identifier is America/Los_Angeles, which is what phones and computers use to set the local time.
Yes. Sunday, March 14, 2027: clocks go forward 1 hour at 2:00 AM local time (UTC−8 → UTC−7). The previous change was on Sunday, November 1, 2026.
Sunnyvale is 8 hours behind UTC on standard time and 7 hours behind UTC during daylight saving time.
The table above shows today’s sunrise, sunset and day length for the city centre. As an example, on Tuesday, November 3, 2026 the sun rose at 6:34 AM and set at 5:08 PM, giving 10 h 34 min of daylight.