ToolEmpire

Unix Timestamp Converter Online

Convert a Unix timestamp to local, ISO 8601, and UTC. Runs in any browser, no install.

Inputs

Unix seconds (10-digit) or milliseconds (13-digit) — auto-detected

Results

Human readable
Sunday, June 15, 2025 · 15:06:40
local time
ISO 8601
2025-06-15T15:06:40.000Z
ISO 8601 (UTC)
UTC
2025-06-15 15:06:40
UTC · HH:mm:ss
Days since epoch
20,254
days since 1970-01-01
Relative
199 days before reference
vs 2026-01-01 reference

About this tool

Paste a timestamp in seconds or milliseconds to get local, ISO 8601, and UTC dates. No install — it runs in any browser and nothing is sent to a server.

How to use

  1. 1Enter Unix timestamp.
  2. 2Adjust the remaining inputs to match your case.
  3. 3Read Human readable and ISO 8601 in the results.
  4. 4Everything runs in your browser — nothing is uploaded or stored.

Frequently asked questions

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