How to use the online alarm clock
At 11 am, the morning is well under way and calendars start to crowd. When people join from overseas, writing NZST or NZDT avoids a meeting moving by an hour at a seasonal clock change.
Use this hour as a planning reference, then check the actual date, location and operator. Addresses should include the suburb and postcode because repeated street names occur in different towns and cities.
Winter road plans may need frost, snow and chain advice; summer plans may need fire restrictions and water supplies. Regional anniversary days do not fall everywhere at once, so a local calendar is more reliable than a national assumption.
The islands share one civil time, with the Chatham Islands offset by a further 45 minutes. Daylight saving usually shifts the relationship with overseas cities, which may change their clocks on different dates. Allow time.