Convert KST to NZDT
NZDT is 4 hours ahead of KST. KST is UTC+9 and NZDT is UTC+13.
Right now: KST · NZDT
Best time to schedule a meeting
Standard 9–5 working hours overlap for 4 hours: 9:00 AM–1:00 PM KST (1:00 PM–5:00 PM NZDT). Schedule meetings inside that window.
| KST | NZDT | Suitable? |
|---|---|---|
| 9:00 AM | 1:00 PM | working hours |
| 10:00 AM | 2:00 PM | working hours |
| 11:00 AM | 3:00 PM | working hours |
| 12:00 PM | 4:00 PM | working hours |
| 1:00 PM | 5:00 PM | outside 9–5 |
| 2:00 PM | 6:00 PM | outside 9–5 |
| 3:00 PM | 7:00 PM | outside 9–5 |
| 4:00 PM | 8:00 PM | outside 9–5 |
| 5:00 PM | 9:00 PM | outside 9–5 |
KST to NZDT conversion table
| KST | NZDT |
|---|---|
| 12:00 AM | 4:00 AM |
| 1:00 AM | 5:00 AM |
| 2:00 AM | 6:00 AM |
| 3:00 AM | 7:00 AM |
| 4:00 AM | 8:00 AM |
| 5:00 AM | 9:00 AM |
| 6:00 AM | 10:00 AM |
| 7:00 AM | 11:00 AM |
| 8:00 AM | 12:00 PM |
| 9:00 AM | 1:00 PM |
| 10:00 AM | 2:00 PM |
| 11:00 AM | 3:00 PM |
| 12:00 PM | 4:00 PM |
| 1:00 PM | 5:00 PM |
| 2:00 PM | 6:00 PM |
| 3:00 PM | 7:00 PM |
| 4:00 PM | 8:00 PM |
| 5:00 PM | 9:00 PM |
| 6:00 PM | 10:00 PM |
| 7:00 PM | 11:00 PM |
| 8:00 PM | 12:00 AM (next day) |
| 9:00 PM | 1:00 AM (next day) |
| 10:00 PM | 2:00 AM (next day) |
| 11:00 PM | 3:00 AM (next day) |
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 NZDT
New Zealand Daylight Time (NZDT) is UTC+13. It is used in New Zealand from late September to early April.
New Zealand Daylight Time is UTC+13, one of the few offsets past twelve hours and therefore a full calendar day ahead of most of the Americas. New Zealand's summer is the northern hemisphere's winter, so NZDT applies over Christmas — the opposite of every northern daylight-saving abbreviation, and a common mistake in end-of-year scheduling.
Does this gap change with the seasons?
Neither KST nor NZDT shifts with the seasons, so this 4-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
What time is 9:00 AM KST in NZDT?
9:00 AM KST is 1:00 PM NZDT.
Is NZDT ahead of KST?
NZDT is 4 hours ahead of KST.
Which time zone does this use?
KST is UTC+9 and NZDT is UTC+13. Both abbreviations denote a single fixed offset, so this conversion never shifts with daylight saving — what changes is which abbreviation a place is using at the time.