Standardize Date Formats — Instantly
Convert messy healthcare dates from HL7, ISO, text months, and more into a clean, unified format. Perfect for EHR exports, billing, and data analysis. 100% private — no data ever leaves your browser.
How to Standardize Healthcare Date Formats
This tool converts dates from a wide variety of formats into a single, consistent format of your choice. It handles common healthcare formats like HL7, ISO, slash, dash, dot, text months, and more.
Step 1 — Paste Your Dates
Copy a list of dates (one per line) from your EHR export, spreadsheet, or document. Paste them into the input box above.
Step 2 — Choose Output Format
Select your desired output format: MM/DD/YYYY (US standard), YYYY-MM-DD (ISO), or DD/MM/YYYY (international).
Step 3 — Get Clean, Standardized Dates
The converted dates appear instantly on the right. Invalid dates can be automatically removed. Copy to clipboard or download as a .txt file.
Supported Date Formats
Who Uses This Tool
Common Tasks This Tool Solves
- Convert HL7 dates (20240115) → MM/DD/YYYY
- Convert ISO dates (2024-01-15) → US format
- Convert text months (January 15 2024) → 01/15/2024
- Clean up mixed‑format date columns from EHR exports
- Prepare date lists for import into Excel or databases
- Remove invalid dates (e.g., 02/30/2024) automatically
Frequently Asked Questions
What date formats are supported?
The tool supports HL7 (YYYYMMDD and YYYYMMDDHHMMSS), ISO (YYYY-MM-DD), slash (MM/DD/YYYY, DD/MM/YYYY), dash (MM-DD-YYYY), dot (YYYY.MM.DD), text months (January 15 2024, 15-Jan-2024), and many others. It automatically detects the format and parses the date.
What happens to invalid dates?
If “Remove invalid dates” is checked, lines containing unparseable dates (like 02/30/2024 or 20241301) are omitted from the output. Otherwise, they are left unchanged.
Can I convert timestamps like 20240115123000?
Yes. The tool extracts the date part from HL7 timestamps and ignores the time.
Is it safe for PHI?
Absolutely. All processing happens in your browser – no data is ever sent to a server. It’s 100% HIPAA‑safe.
🔒 Privacy & HIPAA Safety
This tool processes all text entirely in your web browser using JavaScript. No data is ever transmitted to any server, stored in any database, or sent over the internet. Your dates and patient information never leave your computer.
This client‑side architecture makes it safe for use with documents containing Protected Health Information (PHI) under HIPAA guidelines. No Business Associate Agreement (BAA) is required.