Unix Timestamp Converter
Convert Unix timestamps to dates and dates to timestamps, live.
Current Unix Timestamp
Timestamp → Date
Date → Timestamp
What is the Unix Timestamp Converter?
The Unix Timestamp Converter translates between Unix timestamps and human-readable dates in both directions, and shows a live ticking current timestamp. Unix time counts seconds since January 1, 1970 UTC (the epoch) and is how most systems, databases, APIs, and log files represent time internally.
Paste a timestamp to see it as local time, UTC, and ISO 8601 — the converter auto-detects whether the value is in seconds or milliseconds. Or pick a date and time to get the corresponding timestamp in both seconds and milliseconds.
How to use the Unix Timestamp Converter
- For timestamp → date: paste a Unix timestamp (seconds or milliseconds are auto-detected) and read the local, UTC, and ISO 8601 results.
- For date → timestamp: pick a date and time with the picker and copy the seconds or milliseconds value.
- Use the live current timestamp at the top — toggle between seconds and milliseconds and copy it anytime.
Examples
Timestamp to date
1712345678 → 2024-04-05T19:34:38.000Z
Milliseconds auto-detection
1712345678000 → detected as milliseconds, same moment as above
Frequently asked questions
How does the tool know if my timestamp is seconds or milliseconds?
Values with 13 or more digits (roughly, values at or above 10^12) are treated as milliseconds; anything smaller is treated as seconds. That heuristic is unambiguous for all modern dates.
What timezone are the results in?
Three representations are shown side by side: your browser's local timezone, UTC, and the ISO 8601 string (which is UTC with the Z suffix).
What is the year 2038 problem?
Systems storing Unix time in signed 32-bit integers overflow on January 19, 2038. Modern 64-bit systems and JavaScript numbers are unaffected.
Are negative timestamps valid?
Yes — they represent moments before January 1, 1970 UTC. The converter handles them correctly.