Altadena to Honolulu time converter

Honolulu is 3 hours behind Altadena. When it is 9:00 AM in Altadena, it is 6:00 AM in Honolulu.

Altadena PDT

Sunday, October 18, 2026

Honolulu HST

Sunday, October 18, 2026

Altadena
California, United States
Sun, Oct 18
PDTUTC-7
Honolulu
Hawaii, United States
Sun, Oct 18
HSTUTC-10-3h
Finding your time zone…
Shared working hours (9:00–18:00)

Altadena to Honolulu conversion table

Every hour of today in Altadena and the matching time in Honolulu. Light rows are typical working hours (9:00–18:00).

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

Best time to call or meet

Both sides are at work from 12:00 PM – 6:00 PM in Altadena (9:00 AM – 3:00 PM in Honolulu).

Daylight saving time and the difference

The difference changes during the year because Altadena and Honolulu switch clocks on different dates:

  • Oct 18, 2026 – Nov 1, 2026: -3h
  • Nov 1, 2026 – Mar 14, 2027: -2h
  • Mar 14, 2027 – Oct 18, 2027: -3h

Distance

Altadena and Honolulu are 4,133 km (2,568 miles) apart in a straight line.

More conversions

Honolulu to AltadenaAltadena to New YorkAltadena to LondonAltadena to Los AngelesAltadena to ChicagoAltadena to TorontoAltadena to São PauloAltadena to ParisAltadena to BerlinAltadena to MoscowAltadena to DubaiAltadena to New DelhiAltadena to Bangkok
New York to HonoluluLondon to HonoluluLos Angeles to HonoluluChicago to HonoluluToronto to HonoluluSão Paulo to HonoluluParis to HonoluluBerlin to HonoluluMoscow to HonoluluDubai to HonoluluNew Delhi to HonoluluBangkok to Honolulu

Questions and answers

What is the time difference between Altadena and Honolulu?

Honolulu is 3 hours behind Altadena.

What time is it in Honolulu when it is 9 AM in Altadena?

When it is 9:00 AM in Altadena, it is 6:00 AM in Honolulu.

When is the best time to call Honolulu from Altadena?

Both sides are at work from 12:00 PM – 6:00 PM in Altadena (9:00 AM – 3:00 PM in Honolulu).

Does the time difference between Altadena and Honolulu change?

Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.