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Unix Timestamp

The number of seconds elapsed since January 1, 1970 (Unix epoch), used universally in computing.

A Unix timestamp (or epoch time) counts seconds since January 1, 1970, 00:00:00 UTC. It provides a universal, timezone-independent way to represent time in software.

Examples

0 = Jan 1, 1970 00:00:00 UTC
1000000000 = Sep 9, 2001
1700000000 = Nov 14, 2023

Why It Matters

Databases, APIs, and programming languages use Unix timestamps for reliable date/time storage and comparison. It avoids timezone confusion and daylight saving issues.

Year 2038 Problem

32-bit systems store timestamps as signed integers, maxing out at 2,147,483,647 (Jan 19, 2038). Most modern systems use 64-bit timestamps to avoid this.

Related Calculators

📊 Date Calculator 📊 Age Calculator

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