Convert Unix epoch timestamps to human dates and vice versa. Full support for seconds and milliseconds in UTC and local time.
Unix timestamp (or Epoch time) measures time as the total number of elapsed seconds since midnight UTC on January 1, 1970 (excluding leap seconds). It is the standard format for logging events, database record tracking, JWT token expiration, and distributed system synchronization. However, raw integers like 1700000000 are impossible to read at a glance without a reliable conversion tool.
UtilDash's Unix Timestamp Converter provides bi-directional conversion between Unix epoch timestamps and human-readable calendar dates. It supports both standard 10-digit second timestamps and 13-digit millisecond timestamps commonly used in JavaScript and modern databases. The tool displays dates in both UTC and your local device timezone.
With features like a live ticking current-time counter, quick interval calculators (+1 hour, +1 day, +1 week), and an interactive calendar date picker, this tool simplifies time calculations for backend developers, data analysts, and sysadmins.
Database & API Timezone Synchronization: Storing timestamps as UTC Unix epoch values in backend databases (like PostgreSQL, MySQL, and MongoDB) prevents daylight saving discrepancies and cross-region timezone conflicts. Epoch timestamps make time math, database range queries (BETWEEN timestamp_a AND timestamp_b), and caching expiration checks fast and computationally efficient.
The Unix epoch is 00:00:00 UTC on January 1, 1970. Unix time counts the total seconds elapsed since that exact moment.
A timestamp in seconds is currently 10 digits long (e.g. 1700000000), while a millisecond timestamp is 13 digits long (e.g. 1700000000000).
On January 19, 2038, 32-bit signed integers will overflow. Modern systems resolve this by transitioning to 64-bit integers, which can store dates billions of years into the future.
In JavaScript: new Date(timestamp * 1000). In Python: datetime.datetime.fromtimestamp(timestamp, tz=datetime.timezone.utc).
All processing happens locally in your browser. We never see, store, or transmit your data. This tool is fully client-side and secure.
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