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Unix Timestamp Converter

Convert between Unix timestamps and ISO 8601 dates.

Convert in either direction between Unix timestamps (seconds since 1970-01-01 UTC) and human-readable UTC date/time strings (ISO 8601). Auto-detects ms-precision timestamps.

Daniel Oh By Daniel Oh
Published Last reviewed 1 min read

Inputs

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Date → ts: CarbonImmutable::parse(input)->getTimestamp(). Ts → date: CarbonImmutable::createFromTimestampUTC(ts).

In depth

Convert in either direction between Unix timestamps (seconds since 1970-01-01 UTC) and human-readable UTC date/time strings (ISO 8601). Auto-detects ms-precision timestamps.