Timestamp Converter
Convert Unix timestamps and dates.
About the Timestamp Converter
Converts Unix epoch timestamps to readable dates and back, handling both seconds and milliseconds. Every conversion shows ISO 8601, UTC, your local time, and a relative description such as three hours ago, which is usually the fastest way to sanity-check a timestamp pulled from a log or a database column.
How to use the Timestamp Converter
- Paste a Unix timestamp, or pick a date to convert in the other direction.
- Read the ISO 8601, UTC, local, and relative representations.
- Copy the format you need.
Frequently asked questions
- Is my timestamp in seconds or milliseconds?
- A present-day timestamp in seconds has 10 digits; in milliseconds it has 13. A 13-digit value read as seconds lands tens of thousands of years in the future, which is the usual symptom.
- What is the Unix epoch?
- 1970-01-01 00:00:00 UTC. A Unix timestamp counts the seconds elapsed since that instant, ignoring leap seconds.
- Why does the local time differ from UTC?
- Local time applies your machine's time zone and daylight saving rules. The underlying instant is identical; only the presentation differs.
- What is the year 2038 problem?
- A signed 32-bit timestamp overflows on 2038-01-19. Modern systems use 64-bit values and are unaffected, but old embedded systems and legacy database columns can still be caught by it.