Being made of gold indicates that it was at least not an every day tool. Of course it could still be just a fancy golden calendar.
Anyway the German Wikipedia page about Goldhüte [1] says the ritual significance was attributed because there are tomb paintings depicting similar hats being worn in some religious/cultic context.
Anyway the German Wikipedia page about Goldhüte [1] says the ritual significance was attributed because there are tomb paintings depicting similar hats being worn in some religious/cultic context.
[1:] https://de.wikipedia.org/wiki/Goldhut