Free Online Unix Timestamp Converter

Unix timestamp conversion translates between epoch seconds or milliseconds and human-readable dates in UTC and local time.

Your data is processed entirely in your browser and never sent to any server.

Instant results 100% private No signup needed
Current Unix timestamp (seconds)
0

Timestamp → Date

Date → Timestamp

How to Use This Developer Tool

  1. Paste a timestamp — the matching UTC and local dates appear below.
  2. Or pick a date in the calendar field to get the timestamp.
  3. Toggle seconds vs. milliseconds if auto-detection guesses wrong.
  4. Use the inline Copy buttons on either value.

What Is an Unix Timestamp Converter?

Unix timestamps count seconds (or milliseconds in JavaScript) since 1970-01-01 00:00:00 UTC. They appear everywhere developers look: log timestamps, JWT `iat` and `exp` claims, `created_at` columns, API response fields, Kafka offsets, monitoring metrics. Converting in your head is annoying; converting in a quick tab is fast.

The converter accepts seconds or milliseconds (auto-detected by magnitude), shows the equivalent UTC and local time in ISO 8601, and works in reverse — pick a date and read the timestamp. The current epoch ticks live at the top of the page, useful when you're debugging a token that's about to expire.

Frequently Asked Questions

What is a Unix timestamp?
Seconds (or milliseconds) since January 1, 1970 00:00:00 UTC. It's a universal way to represent dates in programming (e.g., 1700000000).
Seconds vs milliseconds?
JavaScript uses milliseconds (13 digits). Many APIs use seconds (10 digits). Our converter handles both—paste either format.
What about timezones?
Unix timestamps are UTC. The converter shows your local time by default. You can often switch to UTC or other timezones.

Published by the WeGotEveryTool team. We build and test every tool in-house and update pages when the underlying spec, formula, or recommendation changes.

Reviewed: May 2026. Disclaimer: this tool is provided as-is for general informational use. For decisions with material consequences (medical, legal, financial, security) verify results against a qualified professional source.

Related Developer Tools

JWT Decoder

Decode and inspect JWT tokens. View header, payload, and signature without verification.

URL Encoder

Encode text for use in URLs. Convert special characters to percent-encoded format.

Regex Tester

Test regular expressions against sample text. See matches, groups, and debug patterns in real-time.