Timestamp Converter
Convert between Unix timestamps and human-readable dates. Supports both seconds and milliseconds.
Frequently Asked Questions
1. What is a Unix timestamp?
A Unix timestamp is the number of seconds that have elapsed since January 1, 1970 (UTC) — also known as the Unix epoch. It is a widely used system for tracking time in programming and computer systems.
2. Does it support milliseconds?
Yes! The converter automatically detects whether your input is in seconds (10 digits) or milliseconds (13 digits) and handles both formats correctly. JavaScript typically uses milliseconds, while many APIs and databases use seconds.
3. What is the difference between UTC and local time?
UTC (Coordinated Universal Time) is a global time standard that doesn't change with time zones. Local time is your local time zone time. For example, if you're in China (UTC+8), local time is 8 hours ahead of UTC.
4. What is ISO 8601 format?
ISO 8601 is an international standard for date and time representation. Example: "2024-04-29T13:40:00.000Z" where "Z" means UTC (Zulu time). It's commonly used in APIs and data interchange.