Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa. Supports seconds and milliseconds.
Last updated: April 29, 2026
Local Time
Invalid Date
UTC Time
Invalid Date
Relative
Invalid Date
ISO 8601
Invalid Date
Useful Milestones
Quick Guide
Paste a Unix timestamp into the field to see its date.
Toggle between seconds and milliseconds depending on your input.
Use the date picker to generate a timestamp for a specific time.
The Unix Epoch began on Jan 1st, 1970. Some systems use milliseconds (13 digits) while others use seconds (10 digits).
Unix Timestamp Converter — No Uploads Required
A essential tool for developers and data analysts, our Unix Timestamp Converter bridges the gap between machine-readable time and human understanding. Whether you are dealing with legacy databases that store time in seconds or modern APIs using millisecond precision, this tool handles conversions in both directions instantly. It provides a detailed breakdown of the resulting date, including UTC and local time representations, day of the week, and relative time (e.g., '5 minutes ago'). The interface is optimized for speed, allowing you to paste a timestamp or a date and see the results immediately without any button clicks.
Why This Tool Exists
What makes this useful — and why I built it this way.
Debug Faster: understand when an event occurred without manually calculating from a 10-digit number.
Precision Handling: Never lose accuracy when switching between different system timestamp formats.
Full Context: See the day of the week and relative time to get a better sense of the event's timing.
No Data Leakage: Your timestamps and dates are never sent to a server, keeping your logs and data private.
Developer Optimized: Clean, monospaced outputs that are easy to read and copy.
When You'd Use This
Real situations where this tool saves the day.
API Debugging: Convert timestamps found in JSON responses to verify event ordering.
Database Management: Translate integer columns in SQL databases into readable dates for manual audits.
System Logging: Analyze server logs that use Unix time for performance monitoring.
Blockchain Research: Convert block timestamps into human-readable format to track transactions.
Scheduling Logic: Generate the correct timestamp for future events when writing application code.
Using Unix Timestamp Converter
It's straightforward — here's how it works.
Enter a Unix timestamp to see its human-readable date representation.
Alternatively, use the date picker to select a date and see its Unix equivalent.
Switch between Seconds and Milliseconds mode depending on your data source.
Review the local time, UTC time, and relative time outputs.
Click the copy icon next to any value to use it in your code or documentation.
Questions People Ask
Honest answers about how this works.
What even is a Unix timestamp?
Honestly? A Unix timestamp is the number of seconds that have elapsed since January 1, 1970 (UTC), also known as the Unix Epoch.
Does this support 64-bit timestamps?
Honestly? Yes, our converter handles large timestamp values with ease, supporting dates far into the future.
Can I really convert relative dates?
Great question. Currently, the tool focuses on absolute dates and timestamps, providing the relative 'distance' as a convenience output.
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