Timestamp Converter
Convert timestamps between Unix time, ISO format, and human-readable dates
Examples: 1672531200, 1672531200000, 2023-01-01, 2023-01-01T00:00:00Z
About Timestamps
Unix Timestamp
Number of seconds (or milliseconds) since January 1, 1970, 00:00:00 UTC. Widely used in programming and databases for date storage.
ISO 8601
International standard for date and time representation. Format: YYYY-MM-DDTHH:mm:ss.sssZ, where Z indicates UTC timezone.
Timezone Handling
Unix timestamps are timezone-independent (always UTC). Local time display depends on your browser's timezone settings.
Common Use Cases
- • Database date storage
- • API timestamp fields
- • Log file analysis
- • System event tracking
Ready to convert timestamps
Enter a timestamp or date string above to see all its representations.
How to Use Timestamp Converter
Enter Timestamp or Date
Input a Unix timestamp (seconds or milliseconds) or a date string in any common format.
View All Formats
See the time in multiple formats including Unix, ISO 8601, UTC, local time, and relative time.
Copy or Use Values
Copy any format for use in your applications, databases, or API calls.
Timestamp Format Support
Comprehensive timestamp conversion for all development and system administration needs
Unix Timestamp
- • Seconds since Unix epoch
- • Milliseconds format support
- • Database-friendly format
- • Programming language standard
ISO 8601
- • International standard format
- • JSON API compatible
- • Timezone information included
- • Human and machine readable
Local & UTC
- • Local timezone display
- • UTC (universal time) format
- • Automatic timezone detection
- • Daylight saving handling
Relative Time
- • "X hours ago" format
- • Human-friendly display
- • Social media style
- • Real-time updates
Common Use Cases
Database Management
Convert timestamps stored in databases to readable formats for reports, debugging, and data analysis.
API Development
Convert between different timestamp formats when working with APIs that use various date/time standards.
Log Analysis
Convert Unix timestamps in log files to human-readable dates for debugging and monitoring.
System Administration
Schedule tasks, analyze system events, and troubleshoot issues by converting system timestamps.
Data Processing
Process time-series data, convert between different systems, and standardize timestamp formats.
Testing & QA
Verify timestamp handling in applications and ensure correct time zone conversions.
Frequently Asked Questions
What is Unix timestamp?
Unix timestamp is the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC. It's a standard way to represent time in computer systems and is timezone-independent.
How do I know if my timestamp is in seconds or milliseconds?
Timestamps with 10 digits are typically in seconds, while 13 digits are in milliseconds. Our tool automatically detects the format based on the length of the number.
Why does the local time differ from UTC?
Local time adjusts for your timezone and daylight saving time, while UTC is the universal standard time. The difference depends on your geographic location and current DST status.
Can I convert future timestamps?
Yes, Unix timestamps can represent any date and time, both past and future. The tool will show future dates normally and indicate "from now" in the relative time display.
Conversion Features
Today's Stats
Developer Tips
Database Storage: Always store timestamps in UTC to avoid timezone confusion. Convert to local time only for display.
API Design: Use ISO 8601 format in JSON APIs for maximum compatibility and clarity.
Logging: Include both Unix timestamp and human-readable format in logs for easier debugging.