Unix Timestamp Converter | Epoch Time Converter

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Timestamp to Date

Enter a Unix timestamp to convert it into a human-readable date and time.

Converted Date & Time

UTC Date -

Local Date -

ISO 8601 -

Unix Seconds -

Unix Milliseconds -

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Date to Timestamp

Select a date and time to convert it into Unix epoch seconds and milliseconds.

Unix Timestamp

Unix Seconds -

Unix Milliseconds -

Local Date -

UTC Date -

ISO 8601 -

Current Unix Timestamp

Live Unix epoch time in seconds.

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What Is a Unix Timestamp Converter?

A Unix Timestamp Converter translates Unix epoch time into a readable calendar date and time. It can also perform the reverse conversion by turning a date and time into a Unix timestamp.

Unix timestamps are widely used in software development, databases, APIs, operating systems, server logs, analytics, and other systems that need a consistent way to represent time.

Unix Epoch:

Unix time counts elapsed time from January 1, 1970 at 00:00:00 UTC.

How to Use the Unix Timestamp Converter

Enter a Value

Enter a Unix timestamp or select a calendar date and time.

Run the Conversion

Click the appropriate conversion button to process your value.

View the Results

See Unix seconds, milliseconds, UTC, local time, and ISO 8601 format.

Unix Seconds vs Milliseconds

Unix timestamps are commonly represented in either seconds or milliseconds. Knowing which unit your application uses is important because the values differ by a factor of 1,000.

Format	Meaning	Typical Length
Unix Seconds	Seconds elapsed since the Unix epoch	Usually 10 digits for present-era dates
Unix Milliseconds	Milliseconds elapsed since the Unix epoch	Usually 13 digits for present-era dates

Conversion:

Milliseconds = Seconds × 1,000

Seconds = Milliseconds ÷ 1,000

Unix Timestamp and UTC Time

Unix timestamps represent an instant in time independently of a user's displayed local time zone. The Unix epoch itself is defined relative to UTC.

The same timestamp can therefore be displayed differently depending on the local time zone used to format it. This calculator displays both UTC and your browser's local date and time for easier comparison.

What Is ISO 8601 Date Format?

ISO 8601 is a standardized format for representing dates and times. A UTC ISO date commonly looks similar to:

2026-09-19T10:54:00.000Z

The format is widely used in APIs, databases, JavaScript applications, web services, and data exchange because it is consistent and machine-readable.

Common Uses of Unix Timestamps

Unix timestamps are especially useful when software needs to store, compare, sort, or transmit points in time.

Database date and time storage.
API requests and responses.
Server and application logs.
Authentication token expiration.
Scheduling systems.
Analytics and event tracking.
File timestamps.
Software debugging.
Date comparisons in programming.
Converting between UTC and displayed local time.

Frequently Asked Questions

What is a Unix timestamp?

A Unix timestamp is a numerical representation of elapsed time relative to the Unix epoch, January 1, 1970 at 00:00:00 UTC.

What is Unix epoch time?

Unix epoch time is a system for representing points in time using elapsed seconds from the Unix epoch.

Can this converter handle milliseconds?

Yes. The converter supports timestamps expressed in both seconds and milliseconds.

How do I convert Unix seconds to milliseconds?

Multiply the Unix timestamp in seconds by 1,000 to obtain milliseconds.

Does a Unix timestamp contain a time zone?

A Unix timestamp identifies an instant in time. A time zone is applied when that instant is formatted for display as a local calendar date and time.

Why is my local time different from UTC?

Local time applies your device or browser's configured time zone, while UTC provides a standardized global time reference.

Can I convert a date back to Unix time?

Yes. Use the Date to Timestamp section to select a date and time and convert it into Unix seconds and milliseconds.