Use the Unix Timestamp Converter in three steps
Enter a timestamp
Paste epoch seconds or milliseconds, or use the current time button.
Review both timezones
Compare the ISO UTC value with your local date and time.
Convert in reverse
Choose a local date and time to create Unix seconds.
Unix time starts at the epoch
A Unix timestamp counts elapsed seconds from 1970-01-01 00:00:00 UTC. It does not itself contain a timezone.
Seconds and milliseconds look different
Current timestamps are roughly ten digits in seconds and thirteen digits in milliseconds. The tool detects the likely scale by magnitude.
Unix Timestamp Converter FAQ
What timezone is a Unix timestamp in?＋
It represents one instant relative to UTC and contains no local timezone.
How are milliseconds detected?＋
Values with a current-era magnitude of at least 100 billion are interpreted as milliseconds.
Why does local time differ from UTC?＋
Your browser applies the device timezone and any daylight-saving rule for that date.
Can timestamps be negative?＋
Yes. Negative values represent dates before the Unix epoch.
What does the current time button return?＋
It inserts the current instant as whole Unix seconds.
Does a local date include my timezone?＋
The browser interprets the selected date and time in the device's configured timezone before converting it.