Tycoon Calendar

Tycoon Calendar

**One date for the whole world - the same in every mod that asks for it.**

Minecraft counts ticks, not days. Tycoon Calendar gives your world a real date: a day, a month and a

year that move on with the sun, shown in the corner of your screen and shared by every mod that

uses it. It adds no blocks and no items. It is the clock other mods set their prices, rents and

birthdays by - so that "today" means the same thing everywhere in your pack.

For players

• **Pick the year your world starts in.** "Create New World" has a **Start date** button on the Game

tab, anywhere from 1995 to today. The start is saved with the world.

• **See today's date** in the top left corner, for example *Saturday, 9 January 1999*. It hides with

F1 and while F3 is open, and you can switch it off in the client config. Month and weekday names

follow your language.

• **Time moves quickly.** By default 24 calendar days pass in one Minecraft day: a new day every 50

seconds, a year in about five hours of play.

• /calendar tells you today's date, /calendar tempo how fast the days go.

For servers and pack makers

• **The first operator picks the start.** When a new server world has no start date yet, the first

operator who joins is asked which year it begins in - a screen with the mod, a clickable chat line

without it. /calendar start <YYYY-MM-DD> sets it while it is open; force changes it later.

• **Set the pace per world.** /calendar tempo <1-365> changes how many calendar days pass in a

Minecraft day, at once and without a restart. Today's date stays where it is; only the time from

now on runs faster or slower.

• **Jump to a date.** /calendar date <YYYY-MM-DD> makes that day today - forwards or back - without

touching the time of day.

• **Existing worlds never move.** The config (calendar.startDate, calendar.daysPerMcDay) only

presets new worlds; every world keeps its own start and pace.

• **Everyone sees the same day.** The server sends its start and pace when a player joins, whatever

the player's own config says.

Because the date comes from the world's time, /time set moves it as well.

For mod developers

Ask the calendar instead of counting days yourself. CalendarAPI is small:

• today(level) - today's date in this world

• start(level) - the day the world began

• day(level), date(level, day), dayOf(level, date) - between calendar days and dates

• daysPerMcDay(), ticksPerDay() - the pace

• format(date), formatShort(date) - the date in the player's language

Compile against the jar and declare tycooncalendar as a dependency in your neoforge.mods.toml.

Mods that use it

• **Tycoon Citizens** - birthdays, growing up and growing old

• **TCG Packs** - every card and pack is priced for today's date; a set costs what it cost back then

• **Street Trade** (from 0.3.0, through Tycoon Citizens) - customers who age on the calendar

Requirements

• Minecraft 1.21.1, NeoForge

• Nothing else. Server and client, singleplayer and multiplayer.

---

A note on how this was made

This mod was built with substantial help from AI. The design decisions, the playtesting and the

direction are mine; a large share of the code, the textures and this text was written with an AI

assistant. I would rather say that plainly than have you wonder.

Discord

Questions, bug reports, ideas, or just want to show what you built? **Join the Discord** -

that is where I answer fastest, and where the next version gets shaped.