Guide / 01
When to use it
Use it to turn a ten-digit epoch value from a server log into local and UTC time or convert a local date-time into seconds for an API request.
TIME / 025
Unix Timestamp Converter
Convert Unix seconds or milliseconds to local and UTC date-time.
Private workspaceYour input stays on this device. HaloBench tools run in your browser whenever possible.
Converted result
Local: 10/8/2026, 8:36:01 AM UTC: Thu, 08 Oct 2026 08:36:01 GMT ms: 1791448561000
Guide / 02
Quick guide
- Select Seconds or Milliseconds before entering the number, or use the current-time button.
- Compare Local, UTC, and millisecond output and choose the time basis required by the receiving system.
- When converting from the date field, remember that the entered wall time is interpreted in the browser's local zone.
Check
Validate the result
Enter 0 and confirm that UTC points to 1970-01-01 00:00:00 and that the millisecond value is zero.
Limits
Know the limits
The unit is explicit, never inferred from the number's length. Confirm the source unit because the same number denotes different instants in seconds and milliseconds. Display depends on the device zone and browser date range.
Reference
Input and output example
Use the same units and settings when comparing your result with this example.
- Example input
Seconds · 0- Result and interpretation
UTC: Thu, 01 Jan 1970 00:00:00 GMT ms: 0 The local date and time depend on the browser time zone.
FAQ
Frequently asked
Why does the same timestamp show a different clock time on another computer?
The timestamp identifies the same instant, but Local output is formatted in each device's time zone. Use the UTC line for system-to-system comparisons.
Does my data leave this device?
No. This tool is designed to process its working data in your browser. Advertising may load separately, but your tool input is never sent with it.