Timestamp Converter
Convert between Unix timestamps and human-readable dates.
Current Timestamp
Seconds
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Milliseconds
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Timestamp to Date
ISO
UTC
Local
Date to Timestamp
Seconds
Milliseconds
Convert between Unix timestamps and human-readable dates.
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A Unix timestamp looks like an anonymous string of digits — 1754478800 tells you nothing until you convert it. This tool translates timestamps to human-readable dates and back, showing ISO 8601, UTC, and your local time side by side. It is a daily companion for developers reading server logs, debugging API payloads, or checking database records.
A Unix timestamp counts the seconds elapsed since the Unix epoch: midnight UTC on January 1, 1970. The convention spread from early Unix systems and is now the lingua franca of time in computing — databases, logs, and APIs all lean on it because a single integer is unambiguous. It ignores timezones, daylight saving, and calendar quirks; the timezone only enters when you render the number for a human.
You will also meet millisecond timestamps (13 digits, used by JavaScript’s Date.now()) and occasionally microsecond or nanosecond variants; dividing a 13-digit value by 1000 yields the familiar seconds form. One subtlety: Unix time ignores leap seconds, so it is not a perfect count of physical seconds — a deliberate trade-off that keeps arithmetic simple.
Many older systems store timestamps in a 32-bit signed integer, which maxes out at 2,147,483,647 — 03:14:07 UTC on January 19, 2038. One second later the value wraps negative, interpreted as December 1901: the spiritual successor to Y2K. Modern 64-bit systems solved this quietly — a 64-bit signed timestamp overflows roughly 292 billion years from now.
Backend developers decode timestamps buried in log entries and error reports. Data engineers convert epoch values in CSV exports for analysis. And anyone verifying a cron schedule or a JWT exp claim can confirm the wall-clock meaning in seconds.
Unix timestamp is the number of seconds since January 1, 1970.
Those are Unix timestamps in seconds. Milliseconds would be 13 digits.
Systems storing timestamps as 32-bit signed integers will overflow on January 19, 2038. Modern 64-bit systems are unaffected for billions of years.
The tool displays UTC, ISO 8601, and your browser's local time side by side, so you can compare zones at a glance.