Convert Date to Hex Date

Convert Date to Hex Date transforms regular YYYY-MM-DD dates into hexadecimal equivalents for each component. This is a handy way to encode dates for low-level systems, binary protocols, or any situation where you want a compact hex-friendly format.

Paste your input above or import a file below.
No file chosen
Supported file types: .txt, .csv, .tsv, .log, .json, .xml, .md, .ini, .yaml, .yml, .html, .htm, .css
Total characters: 0

How to Use:

  1. Enter one or more dates into the input field in YYYY-MM-DD format.
  2. Each line is processed individually – you can enter multiple dates at once.
  3. The right-hand output area will display the hex-encoded version of each date.
  4. Use Copy Output or Export to File to save the results.
  5. Click Choose File to import dates from a local text file.
  6. Use Clear All to reset both fields quickly.

What Convert Date to Hex Date can do:

  • Converts each date component to hex:
    • Year → hexadecimal (e.g., 2025 → 7E9)
    • Month → 2-digit hex (e.g., 06 → 06)
    • Day → 2-digit hex (e.g., 30 → 1E)
  • Outputs results in HEX_YEAR-HEX_MONTH-HEX_DAY format.
  • Validates and skips invalid lines or bad input.
  • Highlights updates with a flash animation.
  • Supports batch processing with line-by-line transformation.

Example:

2025-01-01
2025-06-30
2025-12-31

Returns:

2025-01-01 = 7E9-01-01
2025-06-30 = 7E9-06-1E
2025-12-31 = 7E9-0C-1F

Date to Hex Date Conversion Table:

This table shows how standard calendar dates in YYYY-MM-DD format are broken down into their hexadecimal equivalents for year, month, and day. It’s useful for low-level encoding, embedded systems, or converting dates to compact, machine-readable formats.

Date (YYYY-MM-DD)Year (Hex)Month (Hex)Day (Hex)
1970-01-010x7B20x010x01
2000-12-310x7D00x0C0x1F
2010-06-150x7DA0x060x0F
2023-08-010x7E70x080x01
2024-02-290x7E80x020x1D
2025-01-010x7E90x010x01
2030-10-100x7EE0x0A0x0A
2040-07-040x7F80x070x04
2050-03-200x8020x030x14
2100-01-010x8340x010x01

Common Use Cases:

Perfect for embedded systems, timestamp encoding, or retro tech projects, Convert Date to Hex Date helps you represent dates in a minimal, byte-aligned format. Whether you’re designing a hex-based protocol or just exploring how time can be encoded differently, this tool gives you fast and clean results.

Useful Tools & Suggestions:

If you’re diving into alternate formats, Convert Date to Binary Date is another way to break things down digitally. And for a less abstract option, Convert Date to Decimal Date keeps the math without losing readability.

Related Tools