NepaliCalendarCore 1.4.0

Nepali-English Date Conversion Utility (.NET Core)

This .NET Core project provides utilities for converting dates between the Nepali (Bikram Sambat - BS) and English (Gregorian - AD) calendar systems. It also supports common date arithmetic operations such as adding days, months, and years.

✨ Features

• 🔄 Convert Nepali date to English date.
• 🔄 Convert English date to Nepali date.
• ➕ Add/Subtract days, months, and years in either calendar system.
• 📅 Display current date in both BS and AD formats.

Convert Nepali date string to AD DateTime

Convert AD DateTime to Nepali date string

Add years or months to a Nepali date

Get day or month count between two Nepali dates

Check if a Nepali year is a leap year

Get month info for a Nepali date

Validate Nepali date format

📦 Tech Stack

• Language: C#
• Framework: .NET Core / .NET 6+
• IDE: Visual Studio 2022+
• Target Platforms: Windows, Linux (cross-platform compatible)

🚀 Getting Started

Prerequisites

• .NET SDK (.NET Core 3.1 or later)
• Visual Studio 2022+ or Visual Studio Code

Clone the Repository

git clone https://github.com/koolkabin/NepaliCalendarCore.git
cd nepali-date-converter

Run the Application

dotnet run

🛠️ Usage

Import the necessary classes

using NepaliCalendar; // Assume this is your namespace
using NepaliCalendar.Utils.NepaliCalendarExtension;

Convert Nepali Date to English

var nepaliDate = "2081/04/10"; // B.S.
DateTime englishDate = nepaliDate.ToAD();
Console.WriteLine("English Date: " + englishDate.ToString("yyyy-MM-dd"));

Convert English Date to Nepali

var english = new DateTime(2025, 7, 25);
string bsDate = english.ToBS();
Console.WriteLine($"Nepali Date: {bsDate.Year}-{bsDate.Month:D2}-{bsDate.Day:D2}");

Add Days, Months, and Years

string original = "2082/04/02"; // B.S. date
string after15Days = original.AddDays(15);
string after2Months = original.AddMonths(2);
string after1Year = original.AddYears(1);

Console.WriteLine("After 15 Days: " + after15Days);
Console.WriteLine("After 2 Months: " + after2Months);
Console.WriteLine("After 1 Year: " + after1Year);

Subtracting Days

string before10Days = original.AddDays(-10);
Console.WriteLine("10 Days Ago: " + before10Days);

📚 Sample Output

Nepali: 2081-04-10
English: 2024-07-25

After Adding 15 Days:
Nepali: 2081-04-25
English: 2024-08-09

📁 Project Structure

/NepaliDateConverter
|-- Program.cs
|-- NepDate.cs
|-- Utils/
    |-- Converter.cs
    |-- NepaliCalendarExtension.cs
|-- README.md

✅ Tests

To run unit tests:

dotnet test

📅 Reference

• Algorithm based on Government of Nepal calendar datasets

👨‍💻 Author

Kabindra Bakey Email: koolkabin@live.com LinkedIn: LinkedIn

📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

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