Convert JST to NZDT

NZDT is 4 hours ahead of JST. JST is UTC+9 and NZDT is UTC+13.

Best time to schedule a meeting

Standard 9–5 working hours overlap for 4 hours: 9:00 AM–1:00 PM JST (1:00 PM–5:00 PM NZDT). Schedule meetings inside that window.

JST to NZDT conversion table

About JST

Japan Standard Time (JST) is UTC+9. It is used in all of Japan, with no daylight saving.

Japan Standard Time is UTC+9 for the whole country and has had no daylight saving since 1951, when the occupation-era experiment was abandoned. Proposals to reintroduce it, most recently before the 2020 Olympics, have failed each time. The offset is shared with South Korea, so Tokyo and Seoul never differ by even a minute.

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 JST 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

Other JST conversions

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

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