What is this tool?
A Unix timestamp is a number that represents time. It usually appears as seconds or milliseconds since January 1, 1970 UTC.
The ChlatWork Unix Timestamp Converter helps you turn timestamp values into readable dates and generate timestamp values from normal dates.
Why use this tool?
- It makes API and database time values easier to read.
- It supports both seconds and milliseconds style timestamps.
- It helps debug logs, JWT claims, scheduled jobs, and payment events.
- It reduces mistakes when copying timestamps into tests.
- It lets you compare date values without manual timezone math.
How to use it
- 1
Open the Unix Timestamp Converter.
- 2
Choose the timezone you want to view dates in.
- 3
Paste a timestamp in seconds or milliseconds.
- 4
Convert it to a readable date.
- 5
Use the date-to-timestamp section when you need the reverse conversion.
- 6
Copy seconds or milliseconds depending on what your system expects.
Common use cases
- A developer checks the exp value from a JWT token.
- A support engineer reads payment or order event times from logs.
- A backend developer prepares timestamp test data for an API.
- A scheduler job owner confirms whether a cron output time is correct.
- A QA tester compares database times with user-visible dates.
Tips and best practices
- Check whether your system uses seconds or milliseconds.
- Be explicit about timezone when discussing timestamp bugs.
- JWT exp and iat values are usually seconds, not milliseconds.
- JavaScript Date values often use milliseconds.
- When logs disagree, compare the same instant in UTC first.
FAQ
What is the difference between seconds and milliseconds?
Milliseconds are 1000 times larger than seconds. Many APIs use seconds, while JavaScript date values often use milliseconds.
Why does timezone matter?
The timestamp represents one instant, but the displayed date and time can change based on timezone.
Can I convert a normal date to a timestamp?
Yes. Enter a date and copy the seconds or milliseconds result.
Are Unix timestamps always UTC?
The raw timestamp is based on UTC. Timezone mainly affects how it is displayed to humans.
Can this help with JWT expiry?
Yes. JWT expiry values are commonly Unix timestamps in seconds.