Unix Timestamp Converter
Our unix timestamp converter makes it simple to translate confusing epoch numbers into readable dates, and back again. This free epoch converter is built for developers, system administrators, data analysts, and anyone who needs accurate time conversion fast. You may also see this referred to as POSIX time, and when systems need to exchange dates in a more readable format, they often use standards like ISO 8601 or RFC 2822 instead.
Current Unix timestamp
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Paste a 10-digit (seconds) or 13-digit (milliseconds) timestamp.
Pick any date and time to see its Unix timestamp in seconds.
How to Use the Unix Timestamp Converter
Choose whether you want to convert timestamp to date, or date to timestamp.
Enter your value: either epoch seconds (or milliseconds) or a calendar date and time.
Select your preferred timezone, or leave it set to UTC / GMT.
Click "Convert" to see the result instantly.
Copy the converted value with one click for use in your code or documents.
What Is a Unix Timestamp?
A Unix timestamp, also called epoch time, is a way of tracking time as a single number: the total seconds that have passed since January 1, 1970, at 00:00:00 UTC. This starting point is known as the Unix epoch.
Developers rely on timestamps for logging events, scheduling tasks, and storing dates in databases without worrying about timezone formatting issues. You'll often see timestamps represented in either seconds (10 digits) or milliseconds (13 digits), depending on the system.
Who Uses Unix Timestamps?
- Software developers: Storing and comparing dates in applications.
- System administrators: Reading server logs and scheduling cron jobs.
- Data analysts: Working with time-series data from APIs and databases.
- Students: Learning about computer systems and time representation.
Common Use Cases
- Debugging a webhook or API payload: You're inspecting a JSON response from a third-party API and see "created_at": 1755417600 instead of a readable date. Paste it in to instantly confirm whether that event fired when you expected, and cross-check it against an ISO 8601 timestamp elsewhere in the payload if the API returns both formats.
- Investigating a server incident: Your log aggregator shows an error at epoch 1786900000. Convert it to your local timezone to line it up against your own timeline of what happened during an outage or deploy — useful when your team spans regions with different daylight saving time rules.
- Setting a JWT or session expiry: You're hardcoding a token expiration and need to know the exact POSIX time value for "30 days from now" to paste into your code or a testing tool like Postman.
- Auditing database records: You're spot-checking a created_at or updated_at column stored as an integer in MySQL or Postgres and want to confirm it matches the date you expect before trusting a migration or import script.
Tips for Working with Timestamps
- Always confirm whether your timestamp is in seconds or milliseconds—a common source of errors.
- When scheduling events, store timestamps in UTC to avoid daylight saving time issues.
- Use this converter to double-check conversions before deploying code.
Frequently Asked Questions
What is the current epoch time right now?
The current epoch time is the number of seconds since January 1, 1970 UTC, and it increases every second. Our converter tool displays the live current epoch time automatically, so you always see the exact value in real time.
Why does Unix time start in 1970?
1970 was chosen somewhat arbitrarily by early Unix developers as a convenient reference point. It predates most computing systems that use it today, giving a clean baseline that all modern timestamps can count forward from.
What's the difference between seconds and milliseconds timestamps?
A standard Unix timestamp counts seconds since the epoch, while some systems, like JavaScript, use milliseconds for greater precision. If your converted date looks wildly wrong, you're probably using a millisecond value in a seconds field (or vice versa).
Can I convert a timestamp to a specific timezone?
Yes, our tool lets you select a timezone so the converted date and time conversion reflects your local time rather than UTC / GMT. This is useful for scheduling or comparing events across different regions.
How do I convert a timestamp manually without a tool?
You can divide the epoch seconds by 86,400 to estimate days since 1970, then add that to the epoch date, though this gets complex quickly with timezones and leap years. Using a converter avoids human error and saves time.
Does daylight saving time affect a Unix timestamp?
No. A Unix timestamp always represents an exact moment in UTC and never changes based on DST. What does change is how that moment is displayed in a local timezone — if a region observes daylight saving time, the same timestamp will show a different local hour depending on the time of year, which is why this tool lets you convert to a specific timezone rather than guessing.
What is the Year 2038 problem?
Systems that store Unix time as a signed 32-bit integer will overflow on January 19, 2038, at 03:14:07 UTC, wrapping around to a negative number that gets misread as a date in 1901. It's often called Y2038 or the "Epochalypse." Most modern 64-bit systems and databases aren't affected, but it's still a real concern for older embedded systems, some legacy 32-bit software, and certain file formats.
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