Unix Timestamp Conversion Guide
A Unix timestamp (also called epoch time or POSIX time) is the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC — a moment known as the Unix epoch. It's the universal time representation used in databases, APIs, log files, and programming languages across all platforms because it is timezone-independent and easy to calculate with.
Why Unix Timestamps?
Unlike human-readable date strings, Unix timestamps have no timezone ambiguity, no daylight saving time complications, are easily sorted (higher number = later date), support simple arithmetic (add 86,400 for one day), and are space-efficient (a 10-digit integer). Every major programming language has built-in timestamp support: JavaScript Date.now() / 1000, Python time.time(), Go time.Now().Unix(), MySQL UNIX_TIMESTAMP().
Current Unix Timestamp
The current timestamp grows by 1 every second. At the time of writing (2026), timestamps are approximately 1,740,000,000. The infamous "Y2K38" problem will occur on January 19, 2038 when 32-bit signed integers overflow at 2,147,483,647 — most modern systems now use 64-bit timestamps to avoid this.
Date Formats Supported
Our converter shows Unix timestamps in four formats: UTC: The timestamp as a human date in UTC timezone. ISO 8601: The international standard format (2026-01-15T12:34:56Z) — used in APIs and databases. Local time: The timestamp converted to your browser's local timezone. Relative time: A human-friendly relative description ("3 days ago", "in 2 hours").
Using Our Free Timestamp Converter
Enter a Unix timestamp to convert it to a date, or enter a date to get its Unix timestamp. The current timestamp is shown automatically and updates in real time. All conversion is done locally in your browser.
Frequently Asked Questions
What is a Unix timestamp?
The number of seconds elapsed since January 1, 1970, 00:00:00 UTC (the Unix epoch). It's timezone-independent and used universally in programming for time storage and calculation.
What is the current Unix timestamp?
Unix timestamps increase by 1 every second. As of 2026, the current timestamp is approximately 1,745,000,000. Our converter shows the exact live current timestamp at the top of the page.
What is the Y2K38 problem?
On January 19, 2038 at 03:14:07 UTC, 32-bit signed integers will overflow when storing Unix timestamps (max value: 2,147,483,647). Systems using 32-bit time storage may malfunction. Modern systems use 64-bit timestamps which won't overflow for billions of years.
How do I get the current timestamp in JavaScript?
Use Math.floor(Date.now() / 1000) for seconds, or Date.now() for milliseconds. The division by 1000 converts from JavaScript's millisecond timestamp to the standard Unix second timestamp.