Unix Timestamp

Convert between Unix timestamps and human-readable dates

Convert between Unix timestamps (seconds or milliseconds since 1970-01-01 UTC) and human-readable date strings. Enter a Unix timestamp to see its ISO 8601, UTC, and local representations — or type an ISO string to get its timestamp. Example: 0 = 1970-01-01T00:00:00Z; 1_700_000_000 ≈ 2023-11-14.

Unix Seconds

Unix Milliseconds

ISO 8601 (UTC)

UTC String

Local String (UTC)

Local results shown in browser timezone: UTC

How to use

Enter a Unix timestamp (seconds or milliseconds) to see the human-readable date.
Or enter a date and time to get its Unix timestamp.
Switch between UTC and your local time zone to compare.
Copy the result for use in code or logs.

Examples

The timestamp 1748217600 converts to 2025-05-26 00:00:00 UTC.
Entering a date returns both its seconds and milliseconds timestamps for use in code.

Verify outputs before using in production. No warranty — see Terms.