Log Tools

Log Timestamp Converter

Convert common log timestamps and Unix timestamps into readable date formats.

Features

Convert a Unix millisecond timestamp copied from an API log into UTC time.

Useful for correlating events across logs that use different timestamp formats.

Convert Unix timestamps and common log date formats into ISO 8601, UTC, local time, seconds, and milliseconds.

Converted timestamp output will appear here...

Format	Example	Description
Unix Seconds	1727433045	Unix timestamp in seconds
Unix Milliseconds	1727433045500	Unix timestamp in milliseconds
ISO 8601	2026-09-27T10:30:45Z	Standard machine-readable date format
Log Date	2026-09-27 10:30:45	Common application log timestamp

Enter one or multiple timestamps.

The tool detects the timestamp format automatically.

The timestamp is converted into multiple standard formats.

Copy the result or download it as a text file.

A Unix timestamp represents a date and time as the number of seconds or milliseconds elapsed since January 1, 1970 UTC.

ISO 8601 is an international standard for representing dates and times in a consistent machine-readable format.

Yes. The tool automatically recognizes 13-digit Unix timestamps as milliseconds.

Yes. Put each timestamp on a separate line and the tool will process them together.

It accepts Unix timestamps in seconds or milliseconds, ISO dates, and common date-time strings.