Convert KST (Korea Standard Time) to HKT (Hong Kong Time)

Best time to schedule a meeting

Standard 9–5 working hours overlap for 7 hours: 10:00 AM–5:00 PM KST (9:00 AM–4:00 PM HKT). Schedule meetings inside that window.

KST to HKT conversion table

About KST

Korea Standard Time (KST) is UTC+9. It is used in South Korea, with no daylight saving.

Korea Standard Time is UTC+9, the same as Japan, and South Korea has had no daylight saving since 1988 when it was used for the Seoul Olympics. The two Koreas briefly differed: the North moved to UTC+8:30 in 2015 and returned to UTC+9 in 2018, which is the only time in modern history the peninsula ran on two clocks.

About HKT

Hong Kong Time (HKT) is UTC+8. It is used in Hong Kong, and matching mainland China and Taiwan.

Hong Kong Time is UTC+8 and has had no daylight saving since 1979. It shares its offset with mainland China, Singapore, Taiwan, Manila and Perth, which makes UTC+8 the most economically dense single offset in the world — roughly a fifth of the planet's population runs on it, and a meeting scheduled in it reaches an unusual amount of Asia at once.

Does this gap change with the seasons?

Neither KST nor HKT shifts with the seasons, so this 1-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