Timestamp Converter

Convert between timestamps and date time, supporting multiple formats and timezones

Timestamp Converter - Input

Quick Actions

Timestamp Converter Tool Guide

Timestamp Converter is a free online tool that can convert between timestamps and date time, supporting multiple formats including Unix timestamps (seconds and milliseconds), ISO 8601 format, local date time, UTC date time, etc. Supports converting from timestamp to date time, and also supports converting from date time to timestamp, bidirectional conversion, convenient to use. Supports quick selection of common times (current time, Unix epoch, January 1, 2000, etc.), supports timezone information display, supports displaying additional information (day of week, day of year, week of year, etc.). Conversion results displayed in real-time, supports one-click copy for easy use. All conversions completed locally in browser, no data uploaded to servers, completely protecting your privacy.

Supports multiple time formats, bidirectional conversion
Supports timezone and additional information display
Local conversion, one-click copy, privacy security

Tool Features

Multiple Time Format Support and Bidirectional Conversion

Supports Unix timestamp format: supports second-level timestamps (10 digits) and millisecond-level timestamps (13 digits), can automatically recognize timestamp unit, can also manually select millisecond mode. Supports ISO 8601 format: standard date time format (e.g., 2024-01-01T00:00:00.000Z), suitable for most programming languages and databases. Supports local date time format: displays local date time according to user browser timezone, supports timezone information display. Supports UTC date time format: displays Coordinated Universal Time (UTC) date time, suitable for cross-timezone applications. Supports bidirectional conversion: can convert from timestamp to date time, can also convert from date time to timestamp, input either side to automatically convert the other. All conversion results displayed in real-time, no manual button click needed.

Convenient Quick Operations and Option Configuration

Supports quick selection of common times: current time (automatically set to current system time), Unix epoch (1970-01-01 00:00:00 UTC, timestamp is 0), January 1, 2000 (Y2K time), etc., click button to quickly set, improving operation efficiency. Supports option configuration: use millisecond mode (after checking, timestamp input box processes in millisecond unit, otherwise processes in second unit), show timezone information (after checking, displays timezone information in local date time results). After entering timestamp, automatically converts to date time, after entering date time, automatically converts to timestamp, real-time synchronization, no manual conversion button click needed. All operations have clear visual feedback, smooth user experience.

Rich Additional Information and Result Management

Supports displaying additional information: day of week (e.g., Monday, Tuesday, etc.), day of year (from 1 to 366), week of year (from 1 to 53), convenient for understanding more time information. Conversion results displayed in list format, each item displays format name (e.g., Unix Timestamp - Seconds, ISO 8601, Local Date Time, etc.) and corresponding value, clear and readable. Each result supports one-click copy, click copy button to copy to clipboard for easy use. Supports clear function for quick reset of all inputs and results, start over. All conversions completed locally in browser, uses browser native Date object and related methods, ensuring conversion result accuracy. All operations have clear visual feedback (Toast notifications), smooth user experience.

How to Use

  1. 1

    Select Input Method and Enter Time

    Can input through two methods: timestamp input (enter Unix timestamp in timestamp input box, can be second-level timestamp like 1704067200, or millisecond-level timestamp like 1704067200000) or date time input (select date in date input box, select time in time input box). If selecting timestamp input, system will automatically convert to date time. If selecting date time input, system will automatically convert to timestamp. Two input methods synchronize in real-time, input either side to automatically convert the other. If unsure, can click quick operation buttons (current time, Unix epoch, January 1, 2000, etc.) to quickly set common times.

  2. 2

    Configure Options (Optional)

    In options area, can configure conversion options: Use millisecond mode (after checking, timestamp input box processes in millisecond unit, e.g., entering 1704067200000 will be recognized as millisecond timestamp; if unchecked, processes in second unit, e.g., entering 1704067200 will be recognized as second timestamp). Show timezone information (after checking, displays timezone information in local date time results, e.g., "Mon Jan 01 2024 00:00:00 GMT+0800"; if unchecked, only displays date time, does not display timezone information). These options are optional, can use default values to convert directly.

  3. 3

    View Results and Copy

    After conversion completes, results display in conversion results area, including: Unix Timestamp (seconds), Unix Timestamp (milliseconds), ISO 8601 format, Local Date Time, UTC Date Time and other formats. Each result displays format name and corresponding value, clear and readable. Click "Copy" button of any result to copy that format's value to clipboard. Additional information area displays additional information like day of week, day of year, week of year, etc., convenient for understanding more time information. Can click "Clear" button to clear all inputs and results, start over. All conversions completed locally in browser.

Frequently Asked Questions

What timestamp formats are supported?
Supports Unix timestamp format, including second-level timestamps (10 digits, e.g., 1704067200) and millisecond-level timestamps (13 digits, e.g., 1704067200000). System automatically recognizes timestamp unit (judges based on number of digits), can also manually select "Use millisecond mode" option. If "Use millisecond mode" is checked, timestamp input box processes in millisecond unit; if unchecked, processes in second unit. Conversion results display both formats: Unix Timestamp (seconds) and Unix Timestamp (milliseconds), convenient for use.
What date time formats are supported?
Supports multiple date time formats: ISO 8601 format (standard format, e.g., 2024-01-01T00:00:00.000Z), local date time format (displays according to user browser timezone, e.g., Mon Jan 01 2024 00:00:00 GMT+0800), UTC date time format (Coordinated Universal Time, e.g., Mon, 01 Jan 2024 00:00:00 GMT). Conversion results area displays all formats for easy comparison and use. Date input box supports standard date picker, time input box supports standard time picker (includes seconds), convenient operation.
Will my time be saved?
No, all conversions are completed locally in your browser, not saved to any server, and not uploaded to network. Conversion process completely completed locally, uses browser native Date object and related methods, all data only processed in current page memory. Entered timestamps and date time only exist in browser, can choose to copy results or clear content, but will not automatically upload. After refreshing page or closing browser, all data automatically cleared, leaving no traces. Completely protecting your privacy and data security.

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