Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and vice versa. Shows your current timestamp live.

Current Unix Timestamp

Unix → Human Date

UTC

Local Time

Relative

Date → Unix Timestamp

Seconds (10-digit)

Milliseconds (13-digit)

How It Works

The tool displays your current Unix timestamp live, updating every second. Paste any Unix timestamp into the input to convert it to a readable date and time. Enter a date to see its Unix timestamp equivalent.

Unix timestamps are a standard way to represent time in computing — the number of seconds elapsed since January 1, 1970 00:00:00 UTC (the Unix Epoch). Our converter makes it easy to translate between Unix timestamps and human-readable dates.

**What is a Unix Timestamp?**

A Unix timestamp (also called POSIX time or Epoch time) is a single integer representing time as seconds since midnight UTC on January 1, 1970. For example, 1704067200 represents January 1, 2024 00:00:00 UTC.

**Why Unix Time Matters**

Unix timestamps are timezone-agnostic — the same integer represents the same instant in time regardless of where in the world you are. This makes them ideal for storing, comparing, and transmitting dates in databases and APIs.

**Millisecond Timestamps**

Modern JavaScript uses millisecond timestamps (e.g., `Date.now()` returns 1704067200000). Python's `time.time()` returns seconds as a float. Our converter handles both seconds and milliseconds automatically.

**Common Programming Uses**

- Database timestamp fields
- JWT token expiration (`exp` claim)
- API request/response timestamps
- Cache expiry calculations
- Log file timestamps
- Scheduling and cron expressions

**The Year 2038 Problem**

On January 19, 2038 at 03:14:07 UTC, 32-bit Unix timestamps will overflow (2^31 - 1 = 2147483647). Modern 64-bit systems are not affected, but legacy embedded systems still using 32-bit time storage will encounter issues.

**Time Zones**

Unix timestamps are always UTC. When displaying to users, convert to their local timezone. Our tool shows results in both UTC and your browser's local timezone.

**Privacy**

All conversions run in your browser. No data is sent to our servers.

Frequently Asked Questions

A Unix timestamp is the number of seconds since January 1, 1970 00:00:00 UTC. It is the standard way computers represent time, independent of timezones.

You can see the live current Unix timestamp at the top of this tool. As of mid-2024, it is approximately 1,720,000,000.

Unix timestamps in seconds are 10 digits (e.g., 1704067200). JavaScript Date.now() returns milliseconds (13 digits, e.g., 1704067200000). Divide by 1000 to convert from milliseconds to seconds.

JavaScript: Date.now()/1000 | Python: import time; time.time() | PHP: time() | Java: System.currentTimeMillis()/1000 | Unix shell: date +%s

On January 19, 2038, 32-bit Unix timestamps will overflow. Modern 64-bit systems are not affected, but legacy systems storing time as 32-bit signed integers will encounter this issue.