Log Timestamp Normalizer
Normalize and convert log timestamps online. Standardize timestamps from multiple systems, convert time zones, and sort log entries by time
Log Timestamp Normalizer FAQ and Usage Guide
What timestamp formats are supported?
The tool automatically detects common log timestamp formats:
- ISO 8601: 2024-01-15T10:30:00Z
- Epoch milliseconds: 1705318200000 (13 digits)
- Epoch seconds: 1705318200 (10 digits)
- Common log format: [2024-01-15 10:30:00]
- YYYY-MM-DD HH:MM:SS format
- YYYY/MM/DD HH:MM:SS format
How does timezone conversion work?
After parsing the timestamp, the tool converts it to your selected timezone.
- UTC: Coordinated Universal Time (default)
- KST: Korean Standard Time (UTC+9)
- Local Time: Uses your browser's local timezone
What is the sort feature?
You can sort logs chronologically based on extracted timestamps.
- Ascending: Shows oldest logs first
- Descending: Shows newest logs first
- No Sort: Maintains original order
What does "Keep Original Log Line" mean?
When checked, the tool preserves the entire log line and only replaces the timestamp. When unchecked, it extracts only the normalized timestamp.
Example: [2024-01-15 10:30:00] INFO: Server started
→ Keep ON: 2024-01-15T10:30:00.000Z INFO: Server started
→ Keep OFF: 2024-01-15T10:30:00.000Z
Why is timestamp normalization important for log analysis?
Logs collected from multiple systems use various timestamp formats. Normalizing them provides:
- Ability to compare logs from different systems chronologically
- Prevention of timezone-related confusion
- Consistent format for log analysis tools
- Clear understanding of event sequences
What is an Epoch timestamp?
Epoch time represents time elapsed since January 1, 1970, 00:00:00 UTC.
- Epoch milliseconds: Commonly used in JavaScript, Java (13 digits)
- Epoch seconds: Commonly used in Unix/Linux systems (10 digits)