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: approximately1,772,000,000
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 UTCMarch 8, 2026 → 1772956800Seconds 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 |
| 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) |
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
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