ICT to NZST Converter & Meeting Planner
Quick answer: 9:00 AM ICT = 2:00 PM NZST (fixed +07:00 standard offset — not DST-adjusted). Use the interactive converter below for DST-aware local-time scheduling.
Planning a call or meeting between Indochina Time (ICT) and New Zealand Standard Time (NZST)? You need to account for the standard time difference. New Zealand Standard Time is normally 5 hours ahead of Indochina Time. Whether you are coordinating between teams in Bangkok and Ho Chi Minh City and Auckland and Wellington, our live tool has you covered. Use our interactive overlap studio below to find the perfect waking hours for both regions, taking into account any seasonal Daylight Saving Time (DST) changes.
24-Hour Conversion Table
Quick reference: 12:00 AM ICT = 5:00 AM NZST. The full 24-hour ICT to NZST table below uses fixed standard offsets for exact abbreviation searches.
Example: 3:00 PM ICT = 8:00 PM NZST.
| ICT Time | NZST Time |
|---|---|
| 12:00 AM (00:00) | 5:00 AM (05:00) |
| 1:00 AM (01:00) | 6:00 AM (06:00) |
| 2:00 AM (02:00) | 7:00 AM (07:00) |
| 3:00 AM (03:00) | 8:00 AM (08:00) |
| 4:00 AM (04:00) | 9:00 AM (09:00) |
| 5:00 AM (05:00) | 10:00 AM (10:00) |
| 6:00 AM (06:00) | 11:00 AM (11:00) |
| 7:00 AM (07:00) | 12:00 PM (12:00) |
| 8:00 AM (08:00) | 1:00 PM (13:00) |
| 9:00 AM (09:00) | 2:00 PM (14:00) |
| 10:00 AM (10:00) | 3:00 PM (15:00) |
| 11:00 AM (11:00) | 4:00 PM (16:00) |
| 12:00 PM (12:00) | 5:00 PM (17:00) |
| 1:00 PM (13:00) | 6:00 PM (18:00) |
| 2:00 PM (14:00) | 7:00 PM (19:00) |
| 3:00 PM (15:00) | 8:00 PM (20:00) |
| 4:00 PM (16:00) | 9:00 PM (21:00) |
| 5:00 PM (17:00) | 10:00 PM (22:00) |
| 6:00 PM (18:00) | 11:00 PM (23:00) |
| 7:00 PM (19:00) | 12:00 AM (00:00)+1 day |
| 8:00 PM (20:00) | 1:00 AM (01:00)+1 day |
| 9:00 PM (21:00) | 2:00 AM (02:00)+1 day |
| 10:00 PM (22:00) | 3:00 AM (03:00)+1 day |
| 11:00 PM (23:00) | 4:00 AM (04:00)+1 day |
Best time to call Auckland from Bangkok
For most work calls, compare the normal business day in Bangkok (ICT) with the business day in Auckland (NZST). ICT commonly covers Southeast Asia, Indochina Peninsula, while NZST is mainly associated with Oceania, Polynesia, Antarctica.
⚠️ Note: 2026-07-05 is not a normal workday in one or both regions based on their configured calendar. The overlap below should be treated as a reference, not a guaranteed office-hours window.
✅ The most practical overlap on 2026-07-05 is usually 9:00 AM - 12:00 PM ICT, which corresponds to 2:00 PM - 5:00 PM NZST. This window sits inside the typical ICT workday (9:00 AM - 5:00 PM) and the NZST workday (9:00 AM - 5:00 PM).
- DST Safety: ICT or NZST may shift during Daylight Saving Time. Always confirm the converted time for your specific date.
- Stock Exchange of Thailand (SET): 10:00-16:30 local time in Bangkok.
- New Zealand Exchange (NZX): 10:00-16:45 local time in Wellington.
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Frequently Asked Questions
What is the time difference between ICT and NZST?
During standard time, New Zealand Standard Time is 5 hours ahead of Indochina Time.
Which countries use Indochina Time (ICT)?
Indochina Time is the official standard time for four Southeast Asian nations: Thailand, Vietnam, Cambodia, and Laos. All four countries observe a single, unified UTC+07:00 offset with no regional subdivisions.
Do Thailand and Vietnam observe Daylight Saving Time?
Neither Thailand nor Vietnam observes Daylight Saving Time, and neither do Cambodia or Laos. ICT remains fixed at UTC+07:00 throughout the entire year, with no seasonal clock changes.
Does New Zealand observe Daylight Saving Time?
New Zealand observes Daylight Saving Time annually, advancing clocks to New Zealand Daylight Time (NZDT) at UTC+13:00 on the last Sunday of September and returning to NZST (UTC+12:00) on the first Sunday of April. In 2026, clocks spring forward on September 27 and fall back on April 5 — following the Southern Hemisphere calendar, which runs opposite to DST schedules in Europe and North America.
Why does Antarctica use New Zealand Time?
McMurdo Station and Amundsen-Scott South Pole Station — the two largest US Antarctic research bases — operate on NZST and NZDT because their primary supply and personnel flights operate out of Christchurch International Airport in New Zealand. Aligning base operations with New Zealand time eliminates scheduling complexity across the Christchurch–McMurdo logistics chain, which handles all cargo, fuel, and personnel rotations for the US Antarctic Program.