Dmesg Timestamp Converter [2025]
Convert Linux kernel log timestamps to human-readable dates. Analyze system logs with ease.
Enter the number from inside the square brackets
Enter when your system booted
Understanding Dmesg Timestamps
Format Explanation
- •
Relative Time
Seconds since system boot (e.g., [6.639729])
- •
Boot Time Reference
All timestamps are relative to when your system started
- •
Microsecond Precision
Six decimal places for high accuracy timing
Common Uses
- •
System Analysis
Debug boot-time issues and kernel events
- •
Performance Monitoring
Track timing of system events and services
- •
Log Correlation
Match kernel events with other system logs
Frequently Asked Questions
What is dmesg?
Dmesg (display message) is a command on Unix-like operating systems that displays the messages from the kernel ring buffer. These messages include hardware device information, driver initialization, and system errors.
Why are timestamps shown in seconds?
The kernel uses seconds since boot for efficiency and to maintain a consistent time reference even if the system clock changes. This format also provides precise timing for debugging and performance analysis.
How accurate are the timestamps?
Dmesg timestamps are accurate to microseconds (6 decimal places), but the absolute time conversion depends on accurate boot time. System suspension or hibernation can affect the accuracy of converted times.
What about dmesg -T command?
While dmesg -T provides human-readable timestamps directly, it's not available on all systems and versions. This converter helps when -T isn't available or when you need to convert specific timestamps from logs.
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