How to use Timestamp Converter
- Enter a timestamp or dateType a Unix timestamp in seconds, milliseconds, microseconds or nanoseconds, or a date such as 2026-09-21 12:00:00, into Timestamp or date.
- Run the conversionPress Run Timestamp Converter. Numbers with up to 11 digits are read as seconds, 12 to 14 digits as milliseconds, 15 to 17 as microseconds and longer ones as nanoseconds.
- Read the resultYou see Unix time in seconds and milliseconds, the date in UTC and ISO 8601, and the same moment in your browser’s time zone.
Common uses
- Reading created_at values from database rows or API responses
- Turning a JWT exp claim into a readable date
- Getting the Unix timestamp of a date for a query or test
Frequently asked questions
How do I use Timestamp Converter?
1. Enter a timestamp or date: Type a Unix timestamp in seconds, milliseconds, microseconds or nanoseconds, or a date such as 2026-09-21 12:00:00, into Timestamp or date. 2. Run the conversion: Press Run Timestamp Converter. Numbers with up to 11 digits are read as seconds, 12 to 14 digits as milliseconds, 15 to 17 as microseconds and longer ones as nanoseconds. 3. Read the result: You see Unix time in seconds and milliseconds, the date in UTC and ISO 8601, and the same moment in your browser’s time zone.
Does it handle milliseconds?
Yes. A 12- to 14-digit number is read as milliseconds, and the result shows the date with milliseconds and the value in milliseconds. Microsecond and nanosecond timestamps are recognised by their length too.
Which time zone is used?
Results are shown in UTC and in your browser’s time zone, which the page sends along with the value. A date you type without an offset is read as UTC, so add an offset such as +02:00 to enter a local time.
Which inputs are accepted?
Dates in any format PHP’s strtotime understands, such as 2026-09-21T12:00:00Z or 21 September 2026, plus relative words like now or tomorrow. Numbers of 1 to 19 digits count as timestamps, including negative ones for dates before 1970.
Is the value sent to a server?
Yes. The timestamp or date and your browser’s time zone name are submitted to the GigaTools server, converted with PHP and returned; the tool does not store them.