Free · no signup · browser-local
Unix Timestamp Converter for Seconds and Milliseconds
Convert a Unix timestamp in seconds or milliseconds to UTC and your device's local time. Check which date and time a timestamp in your logs represents.
Input and settings
LOCALEnter values to see a result.
Getting started
Enter a timestamp and select seconds or milliseconds.
Before you use the result
Unix timestamps omit leap seconds; local time depends on your device zone.
Try an example
Convert 0 seconds to the UTC epoch.
How it works
Milliseconds from the epoch are formatted in UTC and device local time.
Frequently asked questions
Convert Unix seconds or milliseconds to UTC and local time.
How do I use Unix Timestamp Converter?
Enter a timestamp and select seconds or milliseconds.
Does this tool upload my data?
Inputs and files are processed in your browser. Page-view analytics do not contain your tool input.
What should I check before using the result?
Unix timestamps omit leap seconds; local time depends on your device zone.