GrazerMineral

It depends on the number of days per month that you can configure for the server, see https://wiki.vintagestory.at/index.php?title=List_of_server_commands Press t and enter /worldConfig daysPerMonth to see the configured number of days per month.For instance, if the number is 9, then the month ends after 9 days. So after January 9, the next day is February 1. Press t and enter /wgen pos climate to see the current season of the chunk. With these commands, you can check on which "dates" the season changes on your server.

No, you find the steel anvil (and lots of other items) in creative mode only. It isn't available in survival mode. If you check all available items in creative mode, you will quickly realize that this mode contains many more items that aren't available in non-creative modes at the moment (e.g., numerous ores, various herbs, and other items for forging).

Yes, you can find ruins with rare loot and translocators for long-distance teleporting. Even if prospecting doesn't show nearby ore depots, natural caves can become handy for mining later. For instance, you can find natural shafts going down 100+ blocks.

We found lots of bismuth in granite by investigating natural caves/shafts. You actually only need small amounts of bismuth for alloys.

See https://www.vintagestory.at/features/faq.html/

After 2.5 in-game years on our multiplayer server, we prospected the complete area around our current "village." We found multiple massive depots of Pentlandite. Actually, most ore in our area is Pentlandite. However, at the moment, Pentlandite and Nickel are useless in the vanilla game. In the real life, nickel is used for stainless steel and alloy steel, which means in-game Nickel might be used to improve steel at some time. Does a plan exist for Pentlandite or should we just leave it in the mountains?

I would like to translate some Wiki articles to German. My username is "GrazerMineral" over there. Could you add me to the contributors, please?