Unix Timestamp Converter
Convert Unix/Epoch timestamps to human-readable dates and vice versa. Live clock included.
Current Unix Timestamp
1788729500
Sun, 06 Sep 2026 21:18:20 GMT
About Unix Timestamp Converter
What is a Unix Timestamp?
A Unix timestamp (also known as Epoch time or POSIX time) is a system for tracking time as a running total of seconds since the Unix Epoch — January 1, 1970, at 00:00:00 UTC.
Why Do Developers Use Timestamps?
- Universal Standard: Unlike date strings (which vary by locale and timezone), a Unix timestamp is a single, unambiguous integer that means the same thing everywhere in the world.
- Database Storage: Timestamps are extremely efficient to store and sort in databases compared to formatted date strings.
- API Communication: Most REST APIs and web services use Unix timestamps to communicate dates and times between systems.
- Debugging: When debugging time-related issues in code, converting timestamps to human-readable dates is an essential workflow.
Seconds vs. Milliseconds
- Seconds (10 digits): Used by PHP, Python, Ruby, Unix/Linux systems. Example:
1693958400 - Milliseconds (13 digits): Used by JavaScript (
Date.now()), Java, and some APIs. Example:1693958400000
Output Formats
Our converter displays results in multiple formats:
- UTC: The universal standard time
- Local: Your browser's local timezone
- ISO 8601: The international date format standard (
2024-01-01T00:00:00.000Z)
Frequently Asked Questions
What is a Unix Timestamp?
A Unix timestamp (also called Epoch time) is the number of seconds that have elapsed since January 1, 1970, at 00:00:00 UTC. It is widely used in programming, databases, and APIs to represent dates and times as a single integer.
Should I use seconds or milliseconds?
Most programming languages and APIs use seconds (10-digit number like 1693958400). JavaScript, however, uses milliseconds (13-digit number like 1693958400000). Our tool supports both formats — just select the appropriate option.