Honolulu to Foster City time converter

Foster City is 3 hours ahead of Honolulu. When it is 9:00 AM in Honolulu, it is 12:00 PM in Foster City.

Honolulu HST

Monday, October 19, 2026

Foster City PDT

Tuesday, October 20, 2026

Honolulu
Hawaii, United States
Mon, Oct 19
HSTUTC-10
Foster City
California, United States
Tue, Oct 20
PDTUTC-7+3h
Finding your time zone…
Shared working hours (9:00–18:00)

Honolulu to Foster City conversion table

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

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

Best time to call or meet

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

Daylight saving time and the difference

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

  • Oct 19, 2026 – Oct 31, 2026: +3h
  • Oct 31, 2026 – Mar 14, 2027: +2h
  • Mar 14, 2027 – Oct 19, 2027: +3h

Distance

Honolulu and Foster City are 3,859 km (2,398 miles) apart in a straight line.

More conversions

Foster City to HonoluluHonolulu to New YorkHonolulu to LondonHonolulu to Los AngelesHonolulu to ChicagoHonolulu to TorontoHonolulu to São PauloHonolulu to ParisHonolulu to BerlinHonolulu to MoscowHonolulu to DubaiHonolulu to New DelhiHonolulu to Bangkok
New York to Foster CityLondon to Foster CityLos Angeles to Foster CityChicago to Foster CityToronto to Foster CitySão Paulo to Foster CityParis to Foster CityBerlin to Foster CityMoscow to Foster CityDubai to Foster CityNew Delhi to Foster CityBangkok to Foster City

Questions and answers

What is the time difference between Honolulu and Foster City?

Foster City is 3 hours ahead of Honolulu.

What time is it in Foster City when it is 9 AM in Honolulu?

When it is 9:00 AM in Honolulu, it is 12:00 PM in Foster City.

When is the best time to call Foster City from Honolulu?

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

Does the time difference between Honolulu and Foster City change?

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