During my stay In Niue there were few breaks of electrical power but they were 8-10 hours long. Last day we experienced 30h of blackout.
No refrigerators (no cold drinks), no electrical kettle (no tea or coffee), no lights, no internet (no emails and uploads). In my house there was even no running water (pump did not work – no shower, no water in toilet) and no amateur radio!
One good thing – I could sleep all those hours without sleep last few weeks…