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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.

KSTNZDTSuitable?
9:00 AM1:00 PMworking hours
10:00 AM2:00 PMworking hours
11:00 AM3:00 PMworking hours
12:00 PM4:00 PMworking hours
1:00 PM5:00 PMoutside 9–5
2:00 PM6:00 PMoutside 9–5
3:00 PM7:00 PMoutside 9–5
4:00 PM8:00 PMoutside 9–5
5:00 PM9:00 PMoutside 9–5

KST to NZDT conversion table

KSTNZDT
12:00 AM4:00 AM
1:00 AM5:00 AM
2:00 AM6:00 AM
3:00 AM7:00 AM
4:00 AM8:00 AM
5:00 AM9:00 AM
6:00 AM10:00 AM
7:00 AM11:00 AM
8:00 AM12:00 PM
9:00 AM1:00 PM
10:00 AM2:00 PM
11:00 AM3:00 PM
12:00 PM4:00 PM
1:00 PM5:00 PM
2:00 PM6:00 PM
3:00 PM7:00 PM
4:00 PM8:00 PM
5:00 PM9:00 PM
6:00 PM10:00 PM
7:00 PM11:00 PM
8:00 PM12:00 AM (next day)
9:00 PM1:00 AM (next day)
10:00 PM2:00 AM (next day)
11:00 PM3:00 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.

Other KST conversions

All time zone converters · Unix timestamp converter