Time difference between Sydney and Honolulu

Honolulu is 20 hours behind Sydney

Sydney, Australia is UTC+10 · Honolulu, the United States 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 Sydney goes forward on the first Sunday in October and back on the first Sunday in April and Honolulu does not change its clocks.

Honolulu stays put all year while Sydney moves, so a meeting fixed in Honolulu's calendar shifts by an hour twice a year at Sydney's end.

When they can both be at their desks

Nine-to-five in Sydney and nine-to-five in Honolulu 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.

Sydney to Honolulu, hour by hour

On the usual gap of 20 hours.

Frequently asked questions

Other pairs

• Sydney to São Paulo
• Sydney to Buenos Aires
• Sydney to Lima
• Sydney to Lagos
• Sydney to Johannesburg
• Sydney to Nairobi
• Melbourne to London
• Melbourne to Dublin
• Melbourne to Lisbon
• Melbourne to Paris

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