Description
The Date, Time & Astronomy Function Library extends Unreal Engine’s native time system with accurate calendar logic and astronomical calculations.
It provides comprehensive date and time utility functions, including full support for ISO 8601 and US calendar standards (week numbers, weekdays, and comparisons). Additional helpers cover age calculation, date matching, closest date lookup, and time formatting to HH:MM:SS.
The library also includes physically accurate astronomy functions for environmental simulation, such as Sun position (azimuth & elevation), sunrise and sunset times, day length, moon phases, and sidereal time calculations.
Ideal for day/night cycles, realistic sky systems, simulations, calendars, scheduling logic, and time-based gameplay systems.