Fix a milliseconds mismatch in logs or APIs

Review suspicious 13-digit timestamps and confirm whether downstream code is misreading or miswriting them.

Milliseconds are common in JavaScript and many event streams, but other systems document seconds. A quick conversion workflow shows where the mismatch entered the pipeline.

Open the tool Expected result

How to use it

Step 1

Locate the first system that wrote the value

Check whether the timestamp originated in the client, backend, or a third-party service.

Step 2

Convert and compare expected dates

Verify whether the millisecond interpretation matches the real incident or user action.

Step 3

Audit serialization boundaries

Review where the timestamp crosses JSON, database, or language boundaries.

Sample input

1711027200000

Expected result

You get a shorter path to the real source of the mismatch instead of repeatedly patching the display layer.

Common mistakes

Multiplying or dividing timestamps twice.
Changing one service without updating the contract everywhere else.
Assuming logs and APIs use the same unit by default.

Related workflows

Check whether a Unix timestamp is in seconds or milliseconds

Guide

Compare UTC and local time for the same event

Guide

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ToolsDashboard

fix milliseconds timestamp bug

Fix a milliseconds mismatch in logs or APIs

Review suspicious 13-digit timestamps and confirm whether downstream code is misreading or miswriting them.

Milliseconds are common in JavaScript and many event streams, but other systems document seconds. A quick conversion workflow shows where the mismatch entered the pipeline.

Open the tool Expected result