Log Timestamp Normalizer

Correlating an nginx log (UTC), an app log (local time, no offset) and a payment-provider log (their local time) is miserable by hand. Paste the lines below; every recognized timestamp is rewritten into one target zone, with optional deltas between consecutive lines.

Log lines

Assume this zone for timestamps without an offset (syslog, naive ISO)

Convert everything to Output format show Δ between lines

Normalized output

Recognized formats: ISO 8601 / RFC 3339 (with or without offset), Apache/nginx CLF (12/Jun/2026:13:30:46 +0300), RFC 2822 (Fri, 12 Jun 2026 10:30:00 +0300), syslog (Jun 12 10:30:47 — year assumed current), and Unix epoch seconds or milliseconds. The first match per line wins; lines without a recognized timestamp pass through unchanged.