JS Timestamp Converter
Convert JavaScript millisecond timestamps (Date.now()) to dates and back, with ready-to-copy Date outputs.
Date → timestamp
—Milliseconds
—Seconds
—ISO 8601
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How it works
JavaScript counts time in milliseconds since 1 January 1970 UTC (Date.now()), while Unix tools usually use seconds. KadiTools detects the unit from the number of digits and shows what each Date method returns for that instant. Click a value to copy it.
FAQ
Why is my date in 1970?
You probably passed seconds where milliseconds were expected. Multiply by 1000 (or pick “Seconds”).