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Timestamp Converter

Convert Unix seconds, Unix milliseconds, and readable date/time text in both directions without leaving your browser.

How to use

  1. Enter a Unix timestamp and click Convert to Date to see local time, UTC, and ISO output.
  2. Enter a readable date/time like 2026-03-18 14:30:00 and click Convert to Timestamp.
  3. Use Current Time, Sample, Copy, and Clear to test quickly.

Timestamp to date/time

You can paste either 10-digit seconds or 13-digit milliseconds.

Date/time to timestamp

Use a readable format such as YYYY-MM-DD HH:mm:ss or an ISO string.

Results

Enter a timestamp or date/time to see conversion results.

Timestamp conversion quick guide

Use this lightweight section to choose the right timestamp workflow and jump into deeper troubleshooting guides.

When to use this tool

  • You need to read raw API or log timestamps quickly.
  • You want to verify if a value is in seconds or milliseconds.
  • You need a fast UTC and local-time comparison before debugging further.

Quick steps

  1. Paste a timestamp or date/time value.
  2. Run conversion and compare seconds, milliseconds, UTC, and local output.
  3. Use related guides if unit or timezone issues still look unclear.

Common mistakes

  • Assuming every numeric timestamp is milliseconds.
  • Comparing local output to UTC logs without converting both sides.
  • Trusting one field without checking source timezone assumptions.

Related Timestamp Converter guides

Read short practical guides for unit mismatches, API date differences, and timezone debugging.