What Is It?

BenMakesGames.MoonMath is a small library that adds extensions to DateTime and DateTimeOffset to calculate the phase of the Moon.

How to Use

Install

dotnet add package BenMakesGames.MoonMath 

Add using

using BenMakesGames.MoonMath;

Reference

double DateTimeOffset.GetMoonAge()

Computes The Moon's "age" - the number of Earth days since the last new moon. Ranges from 0 to ~29.53.

Example Use

var now = DateTimeOffset.Now;

Console.WriteLine($"It has been {now.GetMoonAge()} days since the last new moon.");

MoonPhase DateTimeOffset.GetMoonPhase()

Returns a MoonPhase indicating the current phase of the Moon. MoonPhase has the following values:

• NewMoon
• WaxingCrescent
• FirstQuarter
• WaxingGibbous
• FullMoon
• WaningGibbous
• ThirdQuarter
• WaningCrescent

Example Use

var now = DateTimeOffset.Now;

var moonPhase = now.GetMoonPhase();

double DateTime.GetMoonAge()

Same as DateTimeOffset.GetMoonAge, but for DateTimes.

MoonPhase DateTime.GetMoonPhase()

Same as DateTimeOffset.GetMoonPhase, but for DateTimes.

string MoonPhase.ToEmoji()

Returns the emoji for the given MoonPhase:

• 🌑 NewMoon
• 🌒 WaxingCrescent
• 🌓 FirstQuarter
• 🌔 WaxingGibbous
• 🌕 FullMoon
• 🌖 WaningGibbous
• 🌗 ThirdQuarter
• 🌘 WaningCrescent

Example use:

var now = DateTimeOffset.Now;

Console.WriteLine(now.GetMoonPhase().ToEmoji());