How to Use This Tool
See the Live Timestamp
The current Unix timestamp updates every second at the top of the tool so you always know the current value.
Timestamp to Date
Paste a Unix timestamp (in seconds or milliseconds) and the tool automatically detects the format and shows the readable date and time.
Date to Timestamp
Pick a date and time using the date and time inputs, and the tool shows the matching Unix timestamp in both seconds and milliseconds.
Copy Any Value
Click the copy button next to any result to put it on your clipboard, ready to paste into code, a database, or a message.
Frequently Asked Questions
Is this tool really free?
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Yes, completely free with no limits and no sign-up. Everything runs in your browser.
Is my data sent to a server?
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No. All conversion happens directly in your browser. Nothing you type is ever sent anywhere.
What is a Unix timestamp?
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A Unix timestamp is the number of seconds that have passed since January 1, 1970 at midnight UTC. It is the standard way computers store and communicate time.
Does it handle milliseconds?
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Yes. The tool automatically detects whether your input is in seconds or milliseconds based on its length, so you do not need to specify.
What is the live timestamp?
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The number at the top of the tool shows the current Unix timestamp, updating every second. It is useful for quick reference or for copying into code.
Can I convert a date to a timestamp?
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Yes. Pick a date and time in the Date to Timestamp section and the tool shows the matching Unix timestamp in both seconds and milliseconds.
What timezone does it use?
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Timestamps are always in UTC. The readable date shown is in your browser's local timezone.
Can I paste a timestamp from a log file?
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Yes. Paste any numeric timestamp into the input field and the tool converts it to a readable date instantly.
What happens with invalid input?
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If the input is not a valid number, the tool shows an error message instead of a date.
Can I copy the current timestamp?
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Yes. Click the copy button next to the live timestamp to grab the current value.
What Is Unix Timestamp Converter?
Unix Timestamp Converter is a free tool that converts between Unix timestamps and human-readable dates right in your browser. It works in both directions: paste a timestamp to see the date, or pick a date to get the timestamp. The tool also shows a live-updating current timestamp for quick reference. Nothing you enter is ever sent anywhere - all math runs locally on your device.
It automatically detects whether your input is in seconds or milliseconds, shows results in your local timezone, and lets you copy any value in one click.
Features Explained
Bidirectional Conversion
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Convert a timestamp to a readable date, or convert a date and time back to a Unix timestamp. Both directions are available in the same tool.
Auto-Detect Seconds vs Milliseconds
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The tool automatically figures out whether your input is in seconds or milliseconds based on its length, so you never need to specify.
Live Current Timestamp
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The current Unix timestamp is shown at the top of the tool, updating every second. Copy it in one click for quick use in code or testing.
Copy Buttons Everywhere
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Every result has its own copy button so you can grab the timestamp, the readable date, or any other value instantly.
Local Timezone Display
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Readable dates are shown in your browser's local timezone, making them immediately useful without manual offset math.
Date and Time Picker
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Use the calendar and time inputs to pick any date and time, and see the matching timestamp in both seconds and milliseconds.
Instant Results
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Results update live as you type or change the inputs. No Convert button needed.
Error Handling
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If the input is not a valid number, the tool shows a clear error message instead of a broken result.
Works for Any Date
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Convert timestamps from the past, present, or future. The tool handles the full range of Unix time.
100% Browser-Based
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All conversion runs directly in your browser. Nothing you enter is ever sent to any server - complete privacy.
Who Is This Tool For?
Software Developers
Convert timestamps from log files, databases, and code into readable dates for debugging and analysis.
QA Engineers
Decode timestamps in test logs, error reports, and automated test output to understand when events occurred.
Database Administrators
Convert timestamp columns to readable dates when inspecting records or writing queries.
DevOps Engineers
Decode timestamps from server logs, monitoring dashboards, and deployment records.
System Administrators
Convert cron job timestamps and system log entries to readable dates for troubleshooting.
Data Analysts
Convert timestamp fields in datasets to human-readable dates for analysis and reporting.
API Developers
Verify timestamp values in request and response payloads during integration testing.
Security Analysts
Decode timestamps in security logs, audit trails, and incident reports to build timelines.
Students
Understand how Unix timestamps work by converting back and forth between timestamps and dates.
Teachers
Demonstrate how computers store time using Unix timestamps during programming or computer science lessons.
Mobile Developers
Convert timestamps from crash logs and analytics events to readable dates.
Technical Writers
Convert timestamps found in documentation, changelogs, and release notes to readable dates.
Support Engineers
Decode timestamps in customer-provided logs and error messages to correlate events.
Blockchain Researchers
Convert block timestamps to readable dates when analyzing transaction histories.
IoT Engineers
Convert sensor and device timestamps to readable dates for data validation.
Journalists
Decode timestamps from leaked data, public records, or social media metadata for reporting.
Game Developers
Convert game event timestamps for leaderboards, achievements, and session analytics.
Email Developers
Decode timestamps in email headers to verify delivery times and troubleshoot delays.
Forensic Analysts
Convert file system and log timestamps to readable dates for digital forensic investigations.
Project Managers
Decode timestamps from project tracking tools and build systems to verify milestone dates.
Network Engineers
Convert packet capture and syslog timestamps to readable dates for network troubleshooting.
Researchers
Convert timestamps in experimental data and survey records to readable dates for analysis.
Hobbyists
Decode timestamps from files, photos, and web pages out of curiosity or for personal projects.
Anyone
Quickly convert any Unix timestamp to a date or vice versa for any reason.
Tips for Best Results
Seconds vs milliseconds
A 10-digit number is usually seconds (e.g. 1712880000). A 13-digit number is usually milliseconds (e.g. 1712880000000). The tool auto-detects which one you pasted.
The epoch is January 1, 1970
Unix time starts counting from midnight UTC on January 1, 1970. A timestamp of 0 is that exact moment.
Use the live timestamp
The live timestamp at the top updates every second. Copy it when you need the current time as a number for code or testing.
Paste from logs directly
Copy a timestamp from a log file or database and paste it straight into the input. The tool converts it instantly.
Results are in your local timezone
The readable date is shown in whatever timezone your browser is set to. The underlying timestamp is always UTC.
Use Date to Timestamp for scheduling
Pick a future date and time to get the exact timestamp you need for scheduling jobs, setting expiration times, or planning events.
Copy any value in one click
Every result has a copy button. Click it to grab the value without selecting and copying manually.
Negative timestamps are valid
Negative timestamps represent dates before January 1, 1970. The tool handles them correctly.
Great for debugging
When a bug report includes a timestamp, paste it here to see the exact date and time the issue occurred.
Privacy is built in
Nothing you enter is ever sent to any server. All math runs in your browser.
Privacy & Security
This tool runs 100% in your browser. Your files stay entirely on your own device. Nothing is uploaded, nothing is shared, and no server, advertiser, or third party has access to your files.
If a tool saves your work on your own device, you can remove it at any time using the Clear All button. Some tools rely on an external service to return their result; in those cases, only the minimum data required for the request is sent, and never your files or content. Any ads shown on this page run in an isolated frame and cannot read, touch, or transmit anything you upload, paste, type, or download here. Advertisers may see standard visit information like your IP address and which page you're on, as described in our Privacy Policy, but your data itself stays fully under your control.
