NZST to AST Converter

Converting New Zealand Standard Time to Atlantic Standard Time

New Zealand Standard Time (NZST) and Atlantic Standard Time (AST) are separated by a 16 hours time difference. AST is 16 hours behind NZST. NZST is UTC+12, used in New Zealand, while AST is UTC-4, used in Canada, Puerto Rico, US Virgin Islands.

When converting from NZST to AST, the key reference points to remember are: 9:00 AM NZST equals 5:00 PM AST, 12:00 PM noon NZST equals 8:00 PM AST, and 5:00 PM NZST equals 1:00 AM AST. The conversion table above shows every hour of the day mapped between these two time zones.

Scheduling Across NZST and AST

For professionals scheduling meetings between NZST and AST, finding overlapping business hours is essential. Standard business hours are typically 9:00 AM to 5:00 PM in each time zone. Given the 16 hours difference, the window of overlap may be limited, making early morning or late evening calls necessary for one party. Use the highlighted working hours in the conversion table above to quickly identify suitable meeting times.

Daylight Saving Time Considerations

NZST observes Daylight Saving Time, switching to NZDT (UTC+13) during summer months. AST observes DST, switching to ADT (UTC-3). During DST transitions, the time difference between these zones may temporarily change by 1 hour. Always verify the current offset during spring and fall transition periods.