DATE & TIME TOOL

Convert a Unix timestamp into a readable date.

Enter Unix seconds, Unix milliseconds or a recognisable date to inspect its ISO, UTC and local-time representations.

TIMESTAMP CONVERTER

Convert a value

Ten-digit values are treated as seconds; longer timestamp values are treated as milliseconds.

Timestamp or date

Second input

Converted values

TIME BASICS

Many Unix timestamps use seconds, while JavaScript commonly uses milliseconds. A factor-of-one-thousand mistake creates the wrong date.

UTC is useful for systems and logs. Local time is easier for a person but depends on the device time zone.

ISO 8601 is explicit and sorts well. Include a time-zone designator when exchanging dates.

Why does the local result differ between devices?

Each device formats local time using its current time-zone settings.

Can I enter a normal date?

Yes, but ambiguous formats may be interpreted differently. ISO-style input is safest.