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P4 CLI Documentation | 2026.1

# Timestamp and Unix epoch

The output of some commands might include a timestamp similar to `2022/06/02 23:59:29`, where the format is `yyyy-mm-dd hh:mi:ss` and the timezone is that of the server.

Sometimes the timestamp might be in Unix epoch time. For example,

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    % p4 changes -t -m1 //depot/main/...
    Change 12345 on 2022/06/02 23:59:29 by ....

    % p4 -z tag changes -t -m1 //depot/main/...
    ... change 12345
    ... time 1654214369

where `-z tag` causes the output to use Unix epoch time, which is also used for checkpoints, journals, structured logs, and the `p4 fstat` and p4 topology commands.

To convert Unix epoch time to a human-readable format, use a website such as https://www.epochconverter.com/

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