Timestamp Converter

Convert Unix timestamps into standard date formats

Paste Unix seconds or JavaScript milliseconds, then copy ISO 8601, UTC, local, RFC 2822, or HTTP-date output for logs, APIs, and debugging.

• Treat values up to 9,999,999,999 as seconds and larger safe integer values as milliseconds
• Convert a selected date and time into Unix seconds and JavaScript milliseconds
• Share a stable timestamp link without unrelated tracking query parameters

UTC basis

Unix timestamps count elapsed time from 1970-01-01 00:00:00 UTC.

Avoid seconds, milliseconds, and timezone mix-ups

Production logs and APIs often switch between Unix seconds, JavaScript milliseconds, UTC output, and local display. Keep the source unit and timezone visible before sharing a converted date.

• Confirm whether the source system emits Unix seconds, JavaScript milliseconds, UTC, or local time
• Check ISO 8601 or UTC output when debugging server-side events
• Use local display only when the reader expects your browser timezone