AltadenaUnited States
Current time in Altadena, United States
Sunday, 30 August 2026
Pacific Daylight TimeUTC-07:00
⛶ Full-screen clockAltadena time at a glance
- Country
- United States
- Location
- City in California
- Time zone
America/Los_Angeles- UTC offset now
UTC-07:00- Current zone label
- GMT-7
- Next clock change
- 1 November 2026 at 01:00 GMT-8
Weather now
Weather in Altadena
Conditions near Altadena and a 3-day forecast. Local conditions can differ across large urban areas, mountains and coastlines.
Smoky haze
- Feels like
- 25°C
- Humidity
- 66%
- Wind
- 7.9 km/h SE
- Recent precipitation
- 0 mm
3-day forecast
- Smoky haze19°C to 36°C6% chance of precipitationWind up to 14 km/h
- Sunny17°C to 27°C2% chance of precipitationWind up to 15.5 km/h
- Sunny18°C to 25°C1% chance of precipitationWind up to 15.1 km/h
Forecast valid from 20:15 local time. Updated 2026-08-31T03:28:27.343Z; refresh due by 2026-08-31T03:43:27.343Z.
Time-zone identity for Altadena
- IANA zone
America/Los_Angeles- UTC offset now
- UTC-07:00
- Current zone label
- GMT-7
- Clock-change status
- An offset change was found in the next 370 days.
Altadena is currently 7 hours behind UTC. The named zone, rather than the offset alone, should be used for future dates.
Next clock change in Altadena
This change comes from the IANA Time Zone Database. It is described as an offset change unless its daylight-saving purpose can be verified.
Time-zone history
UTC offset changes for Altadena
A bounded record of offset transitions calculated for America/Los_Angeles, covering 2021 through 2031. Events are offset changes; their legal or daylight-saving cause is not inferred.
Previous 5 years
- UTC-07:00 UTC-07:00UTC offset decreased by
- UTC-08:00 UTC-08:00UTC offset decreased by
- UTC-07:00 UTC-07:00UTC offset decreased by
- UTC-08:00 UTC-08:00UTC offset decreased by
- UTC-07:00 UTC-07:00UTC offset decreased by
- UTC-08:00 UTC-08:00UTC offset decreased by
- UTC-07:00 UTC-07:00UTC offset decreased by
- UTC-08:00 UTC-08:00UTC offset decreased by
- UTC-07:00 UTC-07:00UTC offset decreased by
- UTC-08:00 UTC-08:00UTC offset decreased by
Next 5 years
- UTC-08:00 UTC-08:00UTC offset decreased by
- UTC-07:00 UTC-07:00UTC offset decreased by
- UTC-08:00 UTC-08:00UTC offset decreased by
- UTC-07:00 UTC-07:00UTC offset decreased by
- UTC-08:00 UTC-08:00UTC offset decreased by
- UTC-07:00 UTC-07:00UTC offset decreased by
- UTC-08:00 UTC-08:00UTC offset decreased by
- UTC-07:00 UTC-07:00UTC offset decreased by
- UTC-08:00 UTC-08:00UTC offset decreased by
- UTC-07:00 UTC-07:00UTC offset decreased by
Dates are calculated from IANA time-zone rules. The calculation checks for offset changes throughout the displayed period and resolves each change to the nearest second.
Location context
About Altadena
Location details for Altadena in California, United States.
- Administrative area
- California, United States
- Population
- 42,777
- Coordinates
- 34.1897° N, 118.1312° W. The elevation is 414 metres.
Nearby city clocks
Cities near Altadena
Nearby cities are ordered by approximate straight-line distance from Altadena. Times are calculated for the same instant shown above.
- PasadenaCalifornia, United States4.8 km south
America/Los_AngelesSame local time - La Cañada FlintridgeCalifornia, United States5.3 km west
America/Los_AngelesSame local time - South PasadenaCalifornia, United States8.4 km south
America/Los_AngelesSame local time - ArcadiaCalifornia, United States10 km southeast
America/Los_AngelesSame local time - AlhambraCalifornia, United States11 km south
America/Los_AngelesSame local time - San GabrielCalifornia, United States11 km south
America/Los_AngelesSame local time
Sources for Altadena time and city facts
Time-zone calculations use runtime tzdb 2026b. Weather and astronomy sources include their own retrieval times where available.
View 4 sources
- GeoNames cities15000GeoNames · 2026-07-15_01-57-51-849 · CC BY 4.0 · AccessedCity and country names, administrative area, coordinates and population.
- IANA Time Zone DatabaseInternet Assigned Numbers Authority · 2026b · Public domain · AccessedTime-zone names, UTC offsets and clock changes.
- Unicode Common Locale Data RepositoryUnicode Consortium · 48.0 · Unicode License v3 · AccessedEnglish display names for countries, currencies and languages.
- Weather and Geolocation APIWeatherAPI.com · Forecast API v1; free plan · WeatherAPI.com terms; commercial and non-commercial use permitted by plan · AccessedCurrent weather conditions, the next 24 hours and a three-day forecast.