📅 Date Calculator Hub

Free Online Date & Time Calculators

Date Converter

Convert dates between different formats, calendar systems, and Unix timestamps. Perfect for developers, researchers, and anyone working with multiple date formats.

How the Date Converter Works

Our date converter transforms dates into multiple formats and calendar systems, making it easy to work with dates across different contexts, programming languages, and cultural systems.

Supported Formats

  • ISO 8601: International standard format (YYYY-MM-DD) used in databases and APIs
  • US Format: MM/DD/YYYY format commonly used in the United States
  • European Format: DD/MM/YYYY format used in many European countries
  • Long Format: Full written format (e.g., "January 15, 2024")
  • Unix Timestamp: Seconds since January 1, 1970 (Unix epoch)
  • Julian Day Number: Continuous count of days since January 1, 4713 BC
  • Day of Year: Day number within the year (1-365 or 366)
  • Week Number: ISO 8601 week number

Common Use Cases

💻 Programming & Development

Convert dates for API integration, database storage, or when working with different programming languages that use various date formats.

📊 Data Analysis

Convert dates between formats when analyzing data from different sources or preparing data for analysis tools.

🌍 International Communication

Convert dates to formats familiar to different regions and cultures for clear communication.

📅 Historical Research

Convert dates between Gregorian and Julian calendars for historical research and understanding historical documents.