Honolulu to Castelo Branco time converter

Castelo Branco is 11 hours ahead of Honolulu. When it is 9:00 AM in Honolulu, it is 8:00 PM in Castelo Branco.

Honolulu HST

Monday, October 19, 2026

Castelo Branco WEST

Monday, October 19, 2026

Honolulu
Hawaii, United States
Mon, Oct 19
HSTUTC-10
Castelo Branco
Portugal
Mon, Oct 19
WESTUTC+1+11h
Finding your time zone…
Shared working hours (9:00–18:00)

Honolulu to Castelo Branco conversion table

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

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

Best time to call or meet

Working hours don't overlap fully. The closest fit is 9:00 AM – 11:00 AM in Honolulu (8:00 PM – 10:00 PM in Castelo Branco): working hours on one side, early or late on the other.

Daylight saving time and the difference

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

  • Oct 19, 2026 – Oct 24, 2026: +11h
  • Oct 24, 2026 – Mar 27, 2027: +10h
  • Mar 27, 2027 – Oct 19, 2027: +11h

Distance

Honolulu and Castelo Branco are 12,555 km (7,801 miles) apart in a straight line.

More conversions

Castelo Branco 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 Castelo BrancoLondon to Castelo BrancoLos Angeles to Castelo BrancoChicago to Castelo BrancoToronto to Castelo BrancoSão Paulo to Castelo BrancoParis to Castelo BrancoBerlin to Castelo BrancoMoscow to Castelo BrancoDubai to Castelo BrancoNew Delhi to Castelo BrancoBangkok to Castelo Branco

Questions and answers

What is the time difference between Honolulu and Castelo Branco?

Castelo Branco is 11 hours ahead of Honolulu.

What time is it in Castelo Branco when it is 9 AM in Honolulu?

When it is 9:00 AM in Honolulu, it is 8:00 PM in Castelo Branco.

When is the best time to call Castelo Branco from Honolulu?

Working hours don't overlap fully. The closest fit is 9:00 AM – 11:00 AM in Honolulu (8:00 PM – 10:00 PM in Castelo Branco): working hours on one side, early or late on the other.

Does the time difference between Honolulu and Castelo Branco change?

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