Time in Altadena, California now
Altadena is in California and uses Pacific Time. The clock on this page is live, and the times below are worked out for the coordinates of Altadena.
- State
- California
- Time zone
- Pacific Time
- Offset from UTC now
- Daylight saving time
- Yes, 8 Mar to 1 Nov
- Population
- 42,777
- Coordinates
- 34.1897° N, 118.1312° W
Sunrise and sunset in Altadena.
Worked out for 34.1897° N, 118.1312° W from the position of the sun, and updated every minute. On the longest day of 2026 the sun is up in Altadena for 14h 26m, and on the shortest day for 9h 52m.
- Sunrise
- Sunset
- Day length
- Solar noon
- Moon phase
- Moon lit
Altadena compared with other cities.
How the clock in Altadena lines up with the rest of the United States and a few cities around the world, right now.
| City | Time zone | Local time | From Altadena |
|---|---|---|---|
| New York | Eastern Time | --:-- | |
| Chicago | Central Time | --:-- | |
| Denver | Mountain Time | --:-- | |
| Phoenix | Mountain Time without daylight saving | --:-- | |
| Los Angeles | Pacific Time | --:-- | |
| Honolulu | Hawaii-Aleutian Time | --:-- | |
| London | United Kingdom | --:-- | |
| Dubai | United Arab Emirates | --:-- | |
| Tokyo | Japan | --:-- | |
| Sydney | Australia | --:-- |
Time in places near Altadena.
The closest places listed for California, with the distance from Altadena and their local time. See every place on the California page.
When the clocks change in Altadena.
Altadena follows the national rules: clocks go forward one hour on the second Sunday of March and back one hour on the first Sunday of November, at 2:00 local time.
- 8 March 2026 Clocks go forward 1 hour Daylight saving time starts at 2:00 local time
- 1 November 2026 Clocks go back 1 hour Daylight saving time ends at 2:00 local time
- 14 March 2027 Clocks go forward 1 hour Daylight saving time starts at 2:00 local time
- 7 November 2027 Clocks go back 1 hour Daylight saving time ends at 2:00 local time
Sunrise and sunset above move with the clock change, so evenings are an hour lighter from Sunday, 8 March 2026.
Quick answers about time in Altadena.
Short answers about the time zone, sunrise, clock changes and neighbours of Altadena.
01
What time is it in Altadena right now?
Altadena is on Pacific Time, UTC-8, and UTC-7 during daylight saving time. The clock at the top of this page shows the current local time and updates every minute.
02
What time zone is Altadena in?
Altadena uses Pacific Time, the same zone as the rest of California in most cases. The California page shows every zone used in the state.
03
Does Altadena observe daylight saving time?
Yes. Clocks in Altadena go forward one hour on Sunday, 8 March 2026 and back one hour on Sunday, 1 November 2026, both at 2:00 local time.
04
What time does the sun rise in Altadena?
Today's sunrise and sunset are shown live on this page. On the longest day of 2026 the sun rises at 05:41 and sets at 20:07, and on the shortest day it rises at 06:54 and sets at 16:46.
05
How long is the longest day in Altadena?
The sun is up for 14h 26m on the June solstice and for 9h 52m on the December solstice. Day length changes fastest around the equinoxes in March and September.
06
What is the time difference between Altadena and New York?
Altadena is 3 hours behind New York all year.
07
What is the time difference between Altadena and London?
Altadena is 8 hours behind London for most of the year. The gap changes for a few weeks each spring and autumn, because the United States and the United Kingdom change their clocks on different dates.
08
How many people live in Altadena?
Altadena has about 42,777 people, which makes it one of the places listed for California on Time Dates. Population figures come from GeoNames.
09
Where is Altadena?
Altadena sits at 34.1897° N, 118.1312° W in California, about 11 miles from Los Angeles.
10
Which places are closest to Altadena?
The closest places listed are Pasadena, 3 miles away, La Cañada Flintridge, 3 miles away and Sierra Madre, 5 miles away. Each one shows its own local time on this page.