Digital New Zealand tide tables. Can be used offline.
Transcription errors are unlikely but possible. This program shouldn't be used where life or property is at risk. No Warranty.
Program (C) Jevon Longdell
https://github.com/jevonlongdell/nztides
Tide data from LINZ.
Tide data till mid 2023. Slightly more helpful text if somehow a invalid port is set