Unix time (also called Unix timestamp, epoch time or POSIX time) is the number of seconds that have elapsed since 00:00:00 UTC on Thursday, 1 January 1970 — the Unix epoch. It is a continuous, timezone-independent count of seconds used universally in operating systems, databases, APIs and log files.

How do I convert a Unix timestamp to a human-readable date?

Paste your Unix timestamp (in seconds or milliseconds) into the Timestamp to Date converter and click Convert. The tool displays the date in your local timezone, UTC, ISO 8601 format and several other formats. For millisecond timestamps, enable the Milliseconds toggle.

What is the current Unix epoch time?

The live clock at the top of this page shows the current Unix epoch time updating every second. You can also get the current timestamp in milliseconds by toggling the ms view. Click Copy to copy the current timestamp to your clipboard.

What is the difference between Unix time in seconds and milliseconds?

Unix time in seconds is a 10-digit integer (e.g. 1700000000). Unix time in milliseconds is a 13-digit integer (e.g. 1700000000000) — the seconds value multiplied by 1000. JavaScript's Date.now() returns milliseconds. Most Unix/Linux systems and databases use seconds. APIs often use milliseconds for finer resolution.

Unix Timestamp Converter Online Free

The fastest epoch converter — convert Unix time to date, date to Unix timestamp, seconds or milliseconds, with live Unix clock online and timezone support. Our browser-based epoch tool needs no registration and works offline.
Live Epoch Clock · Timestamp↔Date · Milliseconds · Timezone · Free

Current Unix Epoch Time

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Timestamp → Date

Input Unit

Date → Timestamp

Date & Time

Output Unit

Timestamp to Timezone

Enter a Unix timestamp and select a timezone to see the converted date and time.

Quick Reference Timestamps — click to use in converter

How It Works

1. Read Live Clock

The live epoch clock shows the current Unix time in seconds and milliseconds, updating every second.

2. Convert Direction

Paste a timestamp to get a human-readable date, or pick a date to get the epoch value.

3. Select Timezone

Use the timezone converter to show any timestamp in your target timezone — IST, PT, JST and more.

4. Copy Result

Click Copy next to any result row to paste it directly into your code, database query or API request.

What Is Unix Time?

Unix time (also called Unix timestamp, epoch time or POSIX time) is the number of seconds that have elapsed since 00:00:00 Coordinated Universal Time (UTC) on Thursday, 1 January 1970 — the Unix time in seconds since January 1st 1970. It is a continuous, timezone-independent integer used universally in operating systems, databases, APIs, server logs and programming languages.

The current Unix time is approximately 1.7 billion seconds. Every day adds 86,400 seconds. Because Unix time is a single integer with no timezone or locale attached, it is the safest way to store and transmit timestamps across systems in different geographic locations — converting to local time happens at display time only.

Unix Time — Key Reference Values

Unix Timestamp	Date (UTC)	Significance
0	1970-01-01 00:00:00	Unix epoch — time zero
1000000000	2001-09-09 01:46:40	1 billion seconds milestone
1234567890	2009-02-13 23:31:30	Celebrated by developers worldwide
1700000000	2023-11-14 22:13:20	Recent milestone
2000000000	2033-05-18 03:33:20	2 billion seconds milestone
2147483647	2038-01-19 03:14:07	32-bit overflow (Year 2038 problem)

How to Convert Unix Timestamp to Human Readable Date

To convert Unix timestamp to human readable date, paste the value into the Timestamp → Date converter and click Convert. The result shows the date in multiple formats — your local timezone, UTC, ISO 8601 and Unix milliseconds. Here's a guide to each conversion type:

Seconds vs Milliseconds

A 10-digit timestamp (e.g. 1700000000) is in seconds. A 13-digit timestamp (e.g. 1700000000000) is in milliseconds — common in JavaScript (Date.now()), Java (System.currentTimeMillis()) and most browser APIs. Toggle the Seconds/Milliseconds button before converting to ensure accurate results. To get current timestamp in milliseconds online, click Copy Milliseconds on the live clock.

Online Epoch Converter with Timezone Support

Unix time has no timezone — it is always the count of seconds since 1970-01-01 00:00:00 UTC. Converting to a specific timezone (IST, PT, JST, etc.) happens at display time. Use the Timestamp to Timezone converter to see any Unix timestamp in any of the major timezones. This is particularly useful when debugging API logs from servers in different regions, or when working with timestamp to GMT conversions for international scheduling.

Date to Unix Converter

To convert date to Unix time online, use the Date → Timestamp converter. Select your date and time using the date picker and click Convert. The output shows the Unix timestamp in seconds and milliseconds. Remember: the date picker uses your browser's local timezone — the resulting Unix timestamp is the correct UTC-based value regardless of your local timezone offset.

Common Uses for a Unix Timestamp Converter

API development and debugging: REST APIs commonly use Unix timestamps in request/response bodies. Use the converter to quickly decode timestamps from API responses, or generate a precise "now" value for API testing and query parameters.
Database queries: MySQL, PostgreSQL and SQLite store dates as Unix timestamps in many schemas. Convert a human-readable date to a Unix timestamp to use in WHERE timestamp > 1700000000 filters.
Log analysis: Server logs (nginx, Apache, syslog) often include Unix timestamps. Paste a log timestamp to see the exact local or UTC time of an event during incident investigation.
JWT token debugging: JWT tokens include exp (expiry) and iat (issued at) claims as Unix timestamps. Convert these values to verify token expiry or compare with the current time.
Scheduling and cron jobs: Convert future dates to Unix timestamps for precise scheduling in cron expressions, cloud function triggers or timer-based automation scripts.
Blockchain and smart contracts: Ethereum and Solidity use block.timestamp as Unix time in seconds. This Unix timestamp converter for developers helps verify smart contract time conditions during development and auditing.

Unix timestamp Unix time converter epoch converter current Unix time Unix time to date epoch time calculator convert seconds to date milliseconds to date timestamp to GMT online epoch converter with timezone support convert Unix timestamp to human readable date Unix time in seconds since January 1st 1970 get current timestamp in milliseconds online

Frequently Asked Questions

Unix time is the number of seconds since 00:00:00 UTC on 1 January 1970 (the Unix epoch). It is a continuous, timezone-independent integer — the same value in every timezone at any given moment. It is used universally in operating systems, databases, APIs, server logs and programming languages as the standard way to store and exchange timestamps.

Paste your timestamp into the Timestamp → Date converter. Choose Seconds for 10-digit timestamps or Milliseconds for 13-digit timestamps. Click Convert. Results show the date in local time, UTC, ISO 8601 format and as milliseconds. Click Copy next to any row to copy that format.

The live clock at the top of this page shows the current Unix epoch time updating every second. Click Copy Seconds or Copy Milliseconds to copy the current value to your clipboard for use in API requests, database queries or code.

Unix time starts at 00:00:00 UTC on 1 January 1970 because early Unix systems were developed in the late 1960s and early 1970s. The designers chose a round date close to the system's creation as the zero point — practical for the 32-bit hardware of the time. This date has been maintained as the universal standard for over 50 years.

A seconds timestamp is 10 digits (e.g. 1700000000). A milliseconds timestamp is 13 digits (e.g. 1700000000000) — the seconds value × 1000. JavaScript's Date.now() returns milliseconds. Most Unix/Linux systems, SQL databases and Python's time.time() use seconds. Enable the Milliseconds toggle before converting to get accurate results.

The Year 2038 problem occurs because 32-bit signed integers can store a maximum value of 2,147,483,647 — which corresponds to 2038-01-19 03:14:07 UTC. After that timestamp, 32-bit systems will overflow and roll over to negative values, potentially causing errors in legacy systems that store Unix time as a 32-bit integer. Modern 64-bit systems are not affected, as they can represent timestamps billions of years into the future.