Convert Unix timestamps between epoch values and human-readable dates and times for debugging, logging, APIs, and distributed systems.
Convert Unix timestamps or date strings into readable dates.
Convert a date and time into Unix seconds and milliseconds.
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A Unix Timestamp Converter converts Unix timestamps and date values between numeric and human-readable formats. It supports Unix seconds, Unix milliseconds, UTC, local time, and ISO 8601 representations, making it useful for debugging APIs, application logs, databases, monitoring systems, authentication data, and distributed applications.
A Unix timestamp represents a point in time as the number of seconds that have elapsed since the Unix epoch, which begins at 00:00:00 UTC on January 1, 1970.
Unix timestamps provide a compact numeric representation of time and are widely used by operating systems, programming languages, APIs, databases, logging systems, and cloud infrastructure.
Unix time is commonly represented either in seconds or milliseconds. A typical Unix timestamp in seconds currently has around 10 digits, while a timestamp in milliseconds commonly has around 13 digits.
For example, 1726233600 represents a Unix timestamp in seconds, while 1726233600000 represents the same approximate point in time in milliseconds.
The converter automatically determines whether a numeric input should be interpreted as seconds or milliseconds based on its magnitude.
Enter a Unix timestamp in the Unix Timestamp → Date field and click Convert. You can also press Enter while the field is focused.
The converter accepts numeric timestamps as well as date strings that can be parsed by the browser's Date implementation.
The result displays UTC, local time, ISO 8601, Unix seconds, and Unix milliseconds so you can compare the different representations of the same point in time.
Select a date and time in the Date → Unix Timestamp section and click Convert.
The converter calculates both Unix seconds and Unix milliseconds and also displays the corresponding UTC and ISO 8601 values.
The Now button can be used to populate the current date and time automatically.
UTC is a global time standard that is independent of a user's local timezone. Unix timestamps are based on UTC rather than local timezone settings.
Local Time is formatted using the timezone configured in the browser environment. The same Unix timestamp can therefore display a different local clock time for users in different timezones.
ISO 8601 is a standardized date and time representation commonly used by APIs and applications. An example is 2024-09-13T00:00:00.000Z.
Unix timestamps are frequently used when applications need to store, compare, sort, or transmit time values. They are especially common in REST APIs, JSON responses, databases, application logs, monitoring platforms, authentication systems, and event-processing pipelines.
Because Unix timestamps are numeric and timezone-independent, they can be convenient for comparing events across systems operating in different geographic locations.
Unix timestamps represent an absolute point in time and do not contain a timezone by themselves. The timezone becomes relevant when the timestamp is converted into a human-readable local date and time.
When debugging systems, it is important to know whether an application expects Unix seconds, Unix milliseconds, UTC strings, or timezone-aware ISO 8601 values.
Timestamp conversions are performed locally in your browser. The timestamps and date values entered into the calculator are not sent to a ToolTunnel backend for processing.
This makes the tool suitable for quickly inspecting timestamps from application logs, APIs, monitoring systems, and other development environments without uploading the values.
A Unix timestamp is a numeric representation of a point in time measured from the Unix epoch, which begins at 00:00:00 UTC on January 1, 1970.
Unix seconds count elapsed seconds since the Unix epoch, while Unix milliseconds count elapsed milliseconds. Current Unix timestamps commonly have around 10 digits in seconds and around 13 digits in milliseconds.
Enter the Unix timestamp into the Unix Timestamp → Date field and click Convert. The converter displays UTC, local time, ISO 8601, seconds, and milliseconds.
Select a date and time in the Date → Unix Timestamp section and click Convert. The converter returns both Unix seconds and Unix milliseconds.
Yes. Numeric values that represent Unix milliseconds are supported, and the results include both Unix seconds and Unix milliseconds.
A Unix timestamp represents an absolute point in time based on the Unix epoch and is not tied to a local timezone. When displayed as a date, the same timestamp can be shown as UTC or converted to the browser's local timezone.
ISO 8601 is an international standard for representing dates and times. ISO timestamps are commonly used in APIs, JSON data, databases, and distributed applications.
No. Timestamp calculations are performed locally in your browser. The timestamp and date values you enter are not uploaded to or stored by ToolTunnel.