Timestamp Converter
Convert Unix timestamps to readable dates, local time, UTC time and ISO format. You can also convert a normal date and time back into a Unix timestamp in seconds or milliseconds.
This timestamp converter is built for developers, website owners, API testing, server logs, analytics reports, databases and quick debugging.
Unix Timestamp Converter Tool
Paste a timestamp or choose a date. Results update instantly and can be copied in one click.
Timestamp to Date
Convert Unix timestamp seconds or milliseconds into readable time.
Date to Timestamp
Convert a readable date and time into Unix timestamp format.
What Is a Unix Timestamp?
A Unix timestamp is a number that represents a specific moment in time. It counts the seconds passed since 1 January 1970 at 00:00:00 UTC, also known as the Unix epoch.
Developers use Unix timestamps because they are simple, compact and easy for computers to compare. Instead of storing a long date string, an app, API or database can store one number and convert it later into local time, UTC time or ISO format.
How to Use This Timestamp Converter
To convert timestamp to date
- Paste your Unix timestamp into the timestamp input box.
- Use a 10-digit timestamp for seconds or a 13-digit timestamp for milliseconds.
- Click Convert Now.
- Copy the local time, UTC time or ISO date result.
To convert date to timestamp
- Select a date and time using the date picker.
- Click Convert to Timestamp.
- Copy the seconds or milliseconds value depending on your app, API or database requirement.
If you are checking server logs, analytics events or API responses, compare both UTC and local time. Many systems store timestamps in UTC even when the user sees local time on screen.
Seconds vs Milliseconds Timestamp
A common timestamp mistake is mixing seconds and milliseconds. If your converted date looks wrong, too far in the future or too far in the past, this is usually the reason.
| Timestamp Type | Common Length | Example | Commonly Used In |
|---|---|---|---|
| Seconds | 10 digits | 1714608000 | Linux, PHP, server logs, many APIs |
| Milliseconds | 13 digits | 1714608000000 | JavaScript, browsers, analytics tools, app events |
JavaScript usually uses milliseconds, while many backend systems use seconds. This converter detects both formats automatically.
UTC Time vs Local Time
UTC is the standard time used by servers, databases, logs and APIs. Local time is the time shown on your device based on your timezone. The same Unix timestamp can display as different local times in different countries, but the UTC moment stays the same.
Use UTC time for:
- Server logs and error logs
- API response timestamps
- Database created-at and updated-at fields
- Scheduled jobs and automation checks
- Analytics event debugging
Use local time for:
- User reports and support tickets
- Checking when something happened on your device
- Website publishing times
- Personal schedules and local records
Common Timestamp Converter Uses
This free timestamp converter is useful whenever a date appears as a number instead of normal readable text.
- Developers: convert API timestamps while debugging requests and responses.
- Website owners: check analytics events, publishing times and error logs.
- Database users: understand created-at, updated-at and event-time fields.
- Support teams: compare user reports with server-side log times.
- Students: learn how Unix time, UTC time and local time work.
Common Timestamp Examples
Here are a few common Unix timestamp examples to help you understand how timestamp conversion works. The exact local time may change depending on your timezone, but the UTC moment stays the same.
Unix Timestamp
Format
What It Means
0
Seconds
1 January 1970, 00:00:00 UTC — the Unix epoch start.
1714608000
Seconds
A normal 10-digit timestamp commonly used by servers and APIs.
1714608000000
Milliseconds
The same style of timestamp in 13-digit JavaScript millisecond format.
If a timestamp result looks incorrect, first check whether the number is in seconds or milliseconds. Then compare the UTC result with your local time result.
Timestamp Troubleshooting Tips
Timestamp problems are usually caused by format mismatch, timezone confusion or copying an incomplete value from a log file. Before changing your code or database value, check these common issues.
- Wrong year: you may be converting milliseconds as seconds, or seconds as milliseconds.
- Wrong hour: your app may be showing local time while the server stores UTC time.
- Missing digits: the timestamp may have been copied incorrectly from an API response or log line.
- Negative timestamp: this usually means the date is before 1 January 1970.
- Different result in another country: local time changes by timezone, but UTC stays fixed.
For most debugging work, use UTC time as the reference. After that, convert it into local time only when you need to explain the result to a user or support team.
Common Timestamp Examples
Here are a few common Unix timestamp examples to help you understand how timestamp conversion works. The exact local time may change depending on your timezone, but the UTC moment stays the same.
| Unix Timestamp | Format | What It Means |
|---|---|---|
| 0 | Seconds | 1 January 1970, 00:00:00 UTC — the Unix epoch start. |
| 1714608000 | Seconds | A normal 10-digit timestamp commonly used by servers and APIs. |
| 1714608000000 | Milliseconds | The same style of timestamp in 13-digit JavaScript millisecond format. |
If a timestamp result looks incorrect, first check whether the number is in seconds or milliseconds. Then compare the UTC result with your local time result.
Timestamp Troubleshooting Tips
Timestamp problems are usually caused by format mismatch, timezone confusion or copying an incomplete value from a log file. Before changing your code or database value, check these common issues.
- Wrong year: you may be converting milliseconds as seconds, or seconds as milliseconds.
- Wrong hour: your app may be showing local time while the server stores UTC time.
- Missing digits: the timestamp may have been copied incorrectly from an API response or log line.
- Negative timestamp: this usually means the date is before 1 January 1970.
- Different result in another country: local time changes by timezone, but UTC stays fixed.
For most debugging work, use UTC time as the reference. After that, convert it into local time only when you need to explain the result to a user or support team.
Related Tools
These TechFixRadar tools can help when you are working with code, logs, website data or account security.
Related Fix Guides
If you are using timestamps while fixing a website, app, laptop or network issue, these guides may help next.
Timestamp Converter FAQs
What is a timestamp converter?
A timestamp converter is an online tool that converts Unix time into a readable date and time. It can also convert a normal date back into a Unix timestamp.
Is Unix timestamp in seconds or milliseconds?
Unix timestamps can be stored in seconds or milliseconds. A 10-digit timestamp is usually seconds, while a 13-digit timestamp is usually milliseconds.
Why is my timestamp showing the wrong date?
The most common reason is using seconds instead of milliseconds, or milliseconds instead of seconds. Timezone difference can also make the result look different, so check both UTC and local time.
What is UTC time?
UTC is the global time standard used by servers, APIs, databases and logs. It helps avoid confusion between different timezones.
Does this timestamp converter upload my data?
No. This tool runs in your browser using JavaScript. The timestamp or date you enter is not uploaded to TechFixRadar.
Can I use this timestamp converter on mobile?
Yes. The tool works on mobile phones, tablets, laptops and desktop browsers.