Convert EAT to HST

HST is 13 hours behind EAT. EAT is UTC+3 and HST is UTC−10.

Best time to schedule a meeting

Standard 9–5 working hours do not overlap at all between EAT and HST. Someone has to take an early or late call — or use asynchronous communication instead.

EAT to HST conversion table

About EAT

East Africa Time (EAT) is UTC+3. It is used in Kenya, Tanzania, Ethiopia, Uganda and Somalia.

East Africa Time is UTC+3 and fixed. Nairobi, Addis Ababa and Dar es Salaam all keep it. Ethiopia additionally uses a clock that counts from dawn rather than midnight for everyday purposes, six hours off the international one, so a time given locally in Addis may need converting twice rather than once.

About HST

Hawaii Standard Time (HST) is UTC−10. It is used in Hawaii, which does not observe daylight saving at all.

Hawaii–Aleutian Standard Time is UTC−10 and Hawaii does not observe daylight saving. That makes it the North American zone whose relationship to everywhere else changes twice a year without it doing anything: Hawaii is two hours behind Los Angeles in winter and three in summer. It is also far enough west that the working day barely overlaps with the US east coast at all.

Does this gap change with the seasons?

Neither EAT nor HST shifts with the seasons, so this 13-hour difference holds all year. That is unusual enough to be worth relying on: most cross-continental gaps move twice a year.

This is the reason scheduling systems store an IANA zone such as Region/City rather than an offset or an abbreviation: the zone knows its own rules and the offset does not.

Frequently asked questions

Other EAT conversions

• EAT to UTC
• EAT to GMT
• EAT to EST
• EAT to EDT
• EAT to CST
• EAT to CDT
• EAT to MST
• EAT to MDT
• EAT to PST
• EAT to PDT
• EAT to AKST
• EAT to BRT
• EAT to BST
• EAT to CET
• EAT to CEST
• EAT to EET

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