Unix Timestamps: What They Are & How to Convert Them

What Is a Unix Timestamp?

A Unix timestamp (or epoch time) is the number of seconds that have elapsed since January 1, 1970 00:00:00 UTC. It's the universal way computers represent time.

Right now in Unix time: approximately 1,772,000,000

Why Use Timestamps?

• Language-agnostic — every programming language understands epoch seconds
• Timezone-free — stored as UTC, converted to local time on display
• Sortable — simple numeric comparison
• Compact — 10 digits vs "March 8, 2026 14:30:00 UTC"

Converting with Fluranto

The Unix Timestamp Converter handles both directions:

Timestamp → Human date:

1709913600 → March 8, 2024 12:00:00 PM UTC

Human date → Timestamp:

March 8, 2026 → 1772956800

Seconds vs Milliseconds

Format	Length	Example	Used By
Seconds	10 digits	1772956800	Unix, PHP, Python
Milliseconds	13 digits	1772956800000	JavaScript, Java
Microseconds	16 digits	1772956800000000	PostgreSQL

### Common Timestamp Values

Timestamp	Date	Event
0	Jan 1, 1970	Unix Epoch
1000000000	Sep 9, 2001	Billennium
2000000000	May 18, 2033	Next milestone
2147483647	Jan 19, 2038	Y2K38 problem (32-bit overflow)

### The Y2K38 Problem

32-bit systems store timestamps as signed integers, maxing out at 2,147,483,647 (January 19, 2038). After that, the number overflows to negative — similar to the Y2K bug. Most modern systems use 64-bit timestamps, solving this for billions of years.

Related Tools

• Date Difference Calculator — calculate time between dates
• Timezone Converter — convert between timezones
• Age Calculator — compute exact age from birthdate