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Date Converter

Convert dates between Gregorian, Islamic (Hijri), Afghan Solar Hijri, Persian, Ethiopian, Indian Saka, Julian & Buddhist calendars. Includes age calculator, date difference tool, ISO 8601 formats, and Unix timestamp converter.

Date Conversion Tool Interface

Convert Date

Year
Month
Day
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Tips, guides & FAQs

100% Free100% Secure8 CalendarsAge Calculator

What Is Date Conversion?

Date conversion is the process of transforming dates between different calendar systems and formats. Our comprehensive tool supports 8 major calendar systems including Gregorian, Afghan Solar Hijri, Islamic (Civil), Persian Solar Hijri, Ethiopian, Indian National, Julian, and Buddhist Era. Perfect for international communication, event planning across cultures, academic research, or simply understanding how today's date is expressed in different traditions. Each conversion includes culturally authentic details like local month names and era indicators.

8+ Calendars

Afghan, Islamic, Persian, Ethiopian, Indian, Julian, Buddhist & Gregorian

23+ Formats

ISO, RFC, UNIX, international & regional formats

Date Calculator

Difference, age, add/subtract days, weeks, months, years

Date Info

Day of week, day of year, week number, quarter, leap year, season

How to Use Date Converter in 4 Easy Tabs

Our date converter offers four powerful tabs for different conversion needs. Whether you need to convert between calendar systems, format dates for different regions, analyze date information, or perform calculations, we've got you covered.

1

Calendar Tab

Afghan, Islamic, Persian, Ethiopian, Indian, Julian, Buddhist & Gregorian

2

Format Tab

ISO, RFC, UNIX, US, UK, European, Asian, military & compact formats

3

Info Tab

Day of week/year, week number, quarter, leap year, season

4

Calculate Tab

Date difference, age calculator, add/subtract years, months, weeks, days

Why Choose Our Date Converter?

Working with dates across different calendar systems can be complex. Our comprehensive tool simplifies this with accurate conversions, multiple formats, and powerful calculators - all in one place.

8 Calendar Systems

Support for Afghan, Islamic, Persian, Ethiopian, Indian, Julian, Buddhist, and Gregorian calendars with authentic month names

23+ Date Formats

Convert between ISO, RFC, UNIX, US, UK, European, Asian, military, and compact formats

3 Powerful Calculators

Date difference, age calculator, and advanced add/subtract operations

Comprehensive Info

Day of year, week number, quarter, leap year detection, season

Export Results

Download all conversions as text files for offline reference and record keeping

One-Click Copy

Copy any conversion result to clipboard with a single click

Is Date Conversion Safe?

100% SECUREThis tool runs entirely in your browser, so your data never leaves your device.

Your dates, calculations, and personal information never leave your computer. No data is transmitted, no servers store your information, and everything is automatically cleared when you close the page. Perfect for sensitive date calculations like birth dates, financial records, and personal planning.

Dates never leave your computer
No data transmitted over internet
Zero access to your information
Auto-cleared after use

Common Use Cases for Date Conversion

Our date converter is perfect for historians, travelers, developers, students, and anyone working with dates across different calendar systems:

📅 Historical Research✈️ Travel Planning🎂 Birth Date Conversion📆 Event Planning💼 Business Dates🌙 Islamic Dates🎎 Japanese Eras🇮🇷 Persian Nowruz🇪🇹 Ethiopian Calendar📊 Date Calculations🎓 Academic Research📱 App Development📜 Document Dating🌍 International Business🧮 Age Verification

💡Pro Tips for Date Conversion

  • Use Calendar tab to convert between all 8 calendar systems with authentic month names
  • Format tab offers 23+ date formats - perfect for international audiences and systems
  • Info tab shows day of year, week number, quarter, season
  • Age calculator gives detailed breakdown: years, months, days, total days, weeks, hours
  • Download results as text files for record keeping and offline reference
  • Use advanced calculator to add/subtract years, months, weeks, days simultaneously
  • Afghan calendar shows Nowruz detection and authentic Pashto/Dari month names
  • Copy any result to clipboard with one click - perfect for quick use

Frequently Asked Questions

We support 8 major calendar systems: Gregorian, Afghan Solar Hijri (with Pashto/Dari month names), Islamic (Civil), Persian Solar Hijri, Ethiopian, Indian National, Julian, and Buddhist Era calendars.
You can choose from 23+ date formats including ISO 8601, RFC 2822, UNIX timestamp, US format (MM/DD/YYYY), UK format (DD/MM/YYYY), European, Asian, military time, and many more.
Yes! Our age calculator provides detailed breakdown: years, months, days, total days, total weeks, total hours, total minutes, and total seconds. Perfect for precise age verification.
Yes! Our Afghan calendar implementation includes authentic Pashto and Dari month names, Nowruz (New Year) detection, and proper leap year calculations following the Solar Hijri system.
No! All processing happens locally in your browser. Your dates, calculations, and personal information never leave your device and are cleared when you close the page.
Calculate date differences (days, weeks, months, weekdays, weekends), precise age calculation, and advanced operations to add or subtract years, months, weeks, and days simultaneously.
Yes! Click the "Download Results" button to save all your conversions as a formatted text file for offline reference, record keeping, or sharing.
Get comprehensive date analysis: day of week, day of year, week number (ISO), quarter, leap year status, weekend detection, season, timezone (UTC), and UNIX timestamps in seconds and milliseconds.

Your Privacy Matters

We use secure processing methods with automatic file deletion. Files are never stored permanently and are automatically deleted after processing. All transfers use HTTPS encryption.