Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa. Shows current Unix time live. Handles seconds and milliseconds.
Last updated: June 1, 2026
Timestamp → Date
Date → Timestamp
What is Unix Timestamp Converter?
A Unix timestamp converter translates between Unix epoch time (the number of seconds since January 1, 1970 00:00:00 UTC) and human-readable dates. Unix timestamps are the standard way computers store time — they're simple integers that avoid timezone ambiguity, daylight saving complications, and calendar irregularities. Every database, API, log file, and operating system uses them internally. This tool lets you quickly decode a timestamp from an API response or log entry into a date you can understand, or convert a specific date into its Unix representation for use in code.
How It Works
For timestamp-to-date conversion: enter a number and the tool auto-detects whether it's seconds (10 digits, like 1700000000) or milliseconds (13 digits). It creates a Date object and formats it in multiple representations — ISO 8601, UTC, local time, and relative time. For date-to-timestamp conversion: select a date and time using the picker, and the tool calculates the corresponding Unix timestamp in both seconds and milliseconds. The current Unix time is displayed live, updating every second.
Common Use Cases
- •Decoding Unix timestamps in API responses or database records to understand when events occurred
- •Converting specific dates to Unix timestamps for use in database queries and API filters
- •Debugging time-related issues by comparing timestamps across different systems and timezones
- •Converting log file timestamps to readable dates for incident investigation
- •Setting expiration times for tokens, cache entries, or scheduled events in code
- •Verifying that timestamp-based logic (rate limiting, token expiry) works correctly
Frequently Asked Questions
What's the difference between seconds and milliseconds?▼
Unix timestamps in seconds are 10 digits, milliseconds are 13 digits. This tool auto-detects both.
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