Unix Timestamp Converter

What is Unix Timestamp?

Unix timestamp is an integer representing the number of seconds elapsed since January 1, 1970 00:00:00 UTC (the Unix Epoch).

Time Range

- Start time: January 1, 1970 00:00:00 UTC, timestamp: 0

- End time: January 19, 2038 03:14:07 UTC, timestamp: 2,147,483,647

* Note: This limitation is based on 32-bit systems. 64-bit systems can represent ±292,277,026,596 years.

Common Units

• Seconds: Most commonly used, 10 digits
• Milliseconds: 1/1000 of a second, 13 digits
• Microseconds: 1/1,000,000 of a second, 16 digits
• Nanoseconds: 1/1,000,000,000 of a second, 19 digits

Why Use Timestamps?

• Unified standard: Not affected by time zones
• Easy calculation: Can be directly compared
• Storage efficient: Represents complete date and time with a single number
• Cross-platform: Supported by all mainstream programming languages

Year 2038 Problem

On 32-bit systems, Unix timestamp will reach its maximum value of 2,147,483,647 on January 19, 2038 03:14:07 UTC, potentially causing overflow issues. Modern 64-bit systems are not affected by this limitation.