What's the difference between timestamps in seconds and milliseconds?

A timestamp in seconds is the standard Unix time. A timestamp in milliseconds provides greater precision and is common in many programming languages like JavaScript (e.g., Date.now()). A millisecond timestamp is simply the second timestamp multiplied by 1000. Our tool auto-detects which one you've entered.

Why are timestamps useful for developers?

Timestamps are useful because they are a simple, universal number that is not affected by timezones. This makes them ideal for storing dates in databases, logging events, and handling time calculations in APIs, as they provide an unambiguous point in time.

Online Timestamp Converter

Convert Unix epoch time to human-readable dates and back. Instantly get the current timestamp with millisecond precision.

Current Unix Timestamp

1760324227(in seconds)

1760324227525(in milliseconds)

Timestamp to Date

Enter Timestamp (seconds or ms)

Date to Timestamp

Enter Date & Time

Timestamp (sec): 1760324227

Timestamp (ms): 1760324227000

Your Go-To Tool for Time Conversion

Live Timestamp

Get the current Unix timestamp, updating every second, in both seconds and milliseconds. Perfect for grabbing a quick, current timestamp.

Two-Way Conversion

Seamlessly convert from a numeric timestamp to a human-readable date, or from a specific date and time back to a timestamp.

Timezone Aware

Results are shown in both your computer's local timezone and in UTC, eliminating any confusion when working with servers or global teams.

What is a Unix Timestamp?

A Unix timestamp (also known as Epoch time or POSIX time) is a simple and powerful way to represent a point in time. It is defined as the total number of seconds that have passed since 00:00:00 UTC on January 1, 1970. This specific moment is called the "Unix epoch".

Because it's just a single, timezone-agnostic number, it's the preferred method for developers to store and manipulate time data in databases, log files, and APIs. It avoids all the complexities and ambiguities of dealing with different timezones, locales, and Daylight Saving Time rules.

Frequently Asked Questions

Why does my timestamp have 10 digits, while others have 13?

A 10-digit timestamp represents time in seconds, which is the standard Unix time. A 13-digit timestamp represents time in milliseconds, offering higher precision. Milliseconds are commonly used in JavaScript (e.g., `Date.now()`). Our tool automatically detects whether you've entered seconds or milliseconds.

What is the 'Year 2038 Problem'?

The "Y2K38" problem relates to older 32-bit systems that store the Unix timestamp as a signed 32-bit integer. On January 19, 2038, this integer will overflow, causing the time to wrap around to 1901, which could cause catastrophic failures in legacy systems. Modern 64-bit systems do not have this problem, as they can store timestamps that will not overflow for billions of years.

Is this tool private?

Yes. All calculations are performed directly in your browser. No data you enter is sent to our servers. Your work is completely private.

100% Client-Side Processing

This tool runs entirely in your browser using JavaScript. We do not upload, store, or analyze any data you input.