Unix Timestamp Converter

This tool converts a Unix timestamp into a readable date and time, and converts a date back into a timestamp, both ways at once. A Unix timestamp, also called epoch time, is the number of seconds that have elapsed since the first moment of 1 January 1970 in UTC, a simple running count that ignores time zones and daylight saving. Because it is just a single integer, it is the format computers prefer for storing and comparing moments in time, so you will find it throughout databases, log files, APIs, file metadata and programming languages. The trouble is that a number like 1700000000 means nothing to a human at a glance, which is exactly where this converter helps. You enter a timestamp in seconds and it shows you the corresponding moment in UTC and in your local New Zealand time, so you can account for the thirteen or twelve hour offset and daylight saving without doing the arithmetic yourself. Going the other way, you pick a date and time and it gives you the matching Unix timestamp, ready to paste into code, a query or a configuration. Both conversions update instantly as you type. This is invaluable for debugging: when a log shows an epoch value, you can read it in seconds; when an API expects a timestamp, you can produce one. A couple of notes worth knowing: most systems use seconds, but some use milliseconds, which are a thousand times larger, and the value shown is based on your device's own clock and time zone for the local readings. Everything runs in your browser.

Epoch time counts seconds since 1 Jan 1970 UTC. Local readings use your device's time zone. Some systems use milliseconds (1000x larger).