Convert CDT to NZDT
NZDT is 18 hours ahead of CDT. CDT is UTC−5 and NZDT is UTC+13.
Right now: CDT · NZDT
Best time to schedule a meeting
Standard 9–5 working hours do not overlap at all between CDT and NZDT. Someone has to take an early or late call — or use asynchronous communication instead.
| CDT | NZDT | Suitable? |
|---|---|---|
| 9:00 AM | 3:00 AM (next day) | outside 9–5 |
| 10:00 AM | 4:00 AM (next day) | outside 9–5 |
| 11:00 AM | 5:00 AM (next day) | outside 9–5 |
| 12:00 PM | 6:00 AM (next day) | outside 9–5 |
| 1:00 PM | 7:00 AM (next day) | outside 9–5 |
| 2:00 PM | 8:00 AM (next day) | outside 9–5 |
| 3:00 PM | 9:00 AM (next day) | outside 9–5 |
| 4:00 PM | 10:00 AM (next day) | outside 9–5 |
| 5:00 PM | 11:00 AM (next day) | outside 9–5 |
CDT to NZDT conversion table
| CDT | NZDT |
|---|---|
| 12:00 AM | 6:00 PM |
| 1:00 AM | 7:00 PM |
| 2:00 AM | 8:00 PM |
| 3:00 AM | 9:00 PM |
| 4:00 AM | 10:00 PM |
| 5:00 AM | 11:00 PM |
| 6:00 AM | 12:00 AM (next day) |
| 7:00 AM | 1:00 AM (next day) |
| 8:00 AM | 2:00 AM (next day) |
| 9:00 AM | 3:00 AM (next day) |
| 10:00 AM | 4:00 AM (next day) |
| 11:00 AM | 5:00 AM (next day) |
| 12:00 PM | 6:00 AM (next day) |
| 1:00 PM | 7:00 AM (next day) |
| 2:00 PM | 8:00 AM (next day) |
| 3:00 PM | 9:00 AM (next day) |
| 4:00 PM | 10:00 AM (next day) |
| 5:00 PM | 11:00 AM (next day) |
| 6:00 PM | 12:00 PM (next day) |
| 7:00 PM | 1:00 PM (next day) |
| 8:00 PM | 2:00 PM (next day) |
| 9:00 PM | 3:00 PM (next day) |
| 10:00 PM | 4:00 PM (next day) |
| 11:00 PM | 5:00 PM (next day) |
About CDT
Central Daylight Time (CDT) is UTC−5. It is used in Chicago, Dallas and Houston from March to November.
Central Daylight Time is UTC−5, the summer clock for Chicago, Dallas and Houston, from the second Sunday in March to the first Sunday in November. Mexico is the complication: it abolished daylight saving nationally in 2022, so Mexico City stays on UTC−6 all year and is now an hour behind Chicago for eight months of the year rather than matching it.
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?
This gap is seasonal. The abbreviations themselves are fixed offsets, but the region on CDT switches to CST (UTC−6) from November to March. So the 18-hour figure on this page is correct for the part of the year when both places are actually on these abbreviations, and changes by an hour outside it.
NZDT does not shift, so the whole change comes from one side. A recurring meeting fixed in NZDT will appear to move by an hour for everyone on the other side, twice a year, without anyone changing anything.
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 CDT in NZDT?
9:00 AM CDT is 3:00 AM NZDT (next day).
Is NZDT ahead of CDT?
NZDT is 18 hours ahead of CDT.
Which time zone does this use?
CDT is UTC−5 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.