Epoch & Timezone Calculator

Convert Unix timestamps (s/ms/us/ns), ISO 8601, and timezones with relative diffs

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About Epoch & Timezone Calculator

Convert seconds, milliseconds, microseconds and nanoseconds epoch timestamps to human-readable date strings, UTC, local timezone, and ISO 8601.

How to use

  1. 1
    Enter Timestamp or Date: Type an epoch number or an ISO date string.
  2. 2
    View Conversions: Instantly view Local, UTC, Relative Time, and Day of Week.

FAQ

How does it detect seconds versus milliseconds?

Locache evaluates digit length (10 digits for seconds, 13 for milliseconds, 16 for microseconds) and validates realistic date ranges.

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