Unix Timestamp Converter
Convert instantly between Unix timestamps and human-readable date-time for API, database, and log debugging, with less head-scratching.
- Enter a Unix timestamp in seconds (10 digits) or milliseconds (13 digits).
- Or select a date and time in the datetime field.
- Both fields convert each other automatically and also show local time plus ISO 8601 (UTC).
- Click "Copy Result" to copy converted values quickly.
Tip:Use "Use Current Time" to fetch the current timestamp instantly for API debugging.
When would you use this?
- An API response returns a Unix timestamp that you need to convert to a readable date.
- Database records or log files contain second- or millisecond-precision timestamps.
- Cross-timezone development requires verifying that timestamps represent the correct moment.
What is a Unix timestamp?
A Unix timestamp is the number of seconds elapsed since January 1, 1970 00:00:00 UTC (the "Unix epoch"). It is a timezone-independent absolute time representation widely used in software and databases.
How do I tell seconds from milliseconds?
Second-precision Unix timestamps are typically 10 digits (e.g. 1710547200), while millisecond-precision ones are 13 digits (e.g. 1710547200000). This tool detects the format automatically and displays both results.
Does timezone affect the conversion?
Unix timestamps are always in UTC and are timezone-neutral. The tool displays both your local time and ISO 8601 UTC so you can easily cross-reference across timezones.
Why is there a Year-2038 problem?
Some legacy systems store Unix timestamps as 32-bit signed integers, which overflow on January 19, 2038. Most modern systems use 64-bit integers, so the impact is significantly reduced today.
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