Time difference between Honolulu and Sydney

Sydney is 20 hours ahead of Honolulu

Honolulu, the United States is UTC−10 · Sydney, Australia is UTC+10 — on standard time

The gap is not the same all year

Every converter gives one number for this pair. That number is right for most of the year and wrong for part of it, because Honolulu does not change its clocks and Sydney goes forward on the first Sunday in October and back on the first Sunday in April.

Honolulu stays put all year while Sydney moves, so the gap changes twice a year from Sydney's side alone. A recurring meeting set in Honolulu's calendar will drift by an hour without anyone touching it.

When they can both be at their desks

Nine-to-five in Honolulu and nine-to-five in Sydney do not overlap at all. With 20 hours between them, one side is always outside working hours, and the practical question is which side takes the early start or the late finish rather than when to meet.

Honolulu to Sydney, hour by hour

On the usual gap of 20 hours.

Frequently asked questions

Other pairs

• Honolulu to Melbourne
• Honolulu to Auckland
• Honolulu to New York
• Honolulu to Toronto
• Honolulu to Chicago
• Honolulu to Mexico City
• Honolulu to Denver
• Honolulu to Los Angeles
• Honolulu to Vancouver
• Honolulu to Anchorage

Every Honolulu pair · Every Sydney pair · All city pairs · Time zones by abbreviation