Timestamp & Date Converter

Timestamp Converter & Date Tool

This tool is designed for development debugging, log analysis and database time processing. It parses 10-digit second timestamp or 13-digit millisecond Unix timestamp into multiple standard time formats instantly. The page displays real-time system time by default; auto refresh will stop once you focus input box or click convert button. It uses local browser calculation with no data upload, fast and privacy-friendly. Empty input will auto use current system time for conversion.

Supported Output Format Description

JS Locale Date String

Full date string based on browser local time zone, display style varies by system locale, commonly used for console debugging raw Date value.

ISO 8601

Worldwide standard time format, using character T to separate date and time with timezone offset, widely adopted in API communication.

ISO 9075

Database-oriented datetime format, uses space instead of T without timezone info, compatible with MySQL, PostgreSQL datetime storage.

RFC 3339

Internet subset specification derived from ISO 8601, identical structure to timezone-aware ISO 8601 for serialization usage.

RFC 7231

Standard UTC datetime defined by HTTP specification, used in HTTP response Date header for network time verification.

Unix Timestamp (sec)

Total seconds elapsed since Unix Epoch (1970-01-01 UTC), 10-digit integer timestamp.

Timestamp (ms)

Total milliseconds elapsed since Unix Epoch, 13-digit integer, default unit for JavaScript Date object.

UTC Format

Datetime in GMT+0 timezone without local offset, convenient for cross-timezone comparison.

Mongo ObjectID

Simulated MongoDB primary key, first 4 bytes embed timestamp to extract document creation time.

Excel Date/Time

Excel internal serial number for datetime, integer for days and decimal for hours/minutes/seconds for spreadsheet conversion.