When exporting from Web Daily Organiser, the date modified column in Windows Explorer will show in UTC time and not your timezone.

Australia uses three main time zones:
Australian Eastern Standard Time (AEST; UTC+10:00)
Australian Central Standard Time (ACST; UTC+09:30)
Australian Western Standard Time (AWST; UTC+08:00)

Time is regulated by the individual state governments, some of which observe daylight saving time (DST).

New Zealand operates on two main time zones:
New Zealand Standard Time (NZST; UTC +12)
Chatham Island Standard Time (CHAST; UTC +12:45)

A future version suggestion has been posted on this topic, which can be followed here: https://timetablingsolutions.freshdesk.com/support/discussions/topics/1000121691