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Time Converter

Date to Unix Timestamp Converter

Convert a date and time to Unix seconds and milliseconds for API tests, database rows, scheduled jobs, logs, and debugging.

Enter a local date and time and get Unix instantly

How to use the date to Unix timestamp converter

1

Pick or type the local date and time you need to encode, such as a release time, test event, expiry date, or scheduled run.

2

Copy the Unix seconds or Unix milliseconds value depending on what your API, database field, or script expects.

3

Use the timestamp in payloads, seed data, queues, cron jobs, logs, analytics events, or debugging notes.

Timestamp rules

Unix time counts elapsed time from 1970-01-01 00:00:00 UTC. Seconds and milliseconds are the two formats most often used in APIs and JavaScript.

  • Unix seconds = milliseconds since epoch / 1000
  • Unix milliseconds = Unix seconds x 1000
  • JavaScript Date stores time as milliseconds since epoch

Developer workflow examples

API expiresAt field

Copy Unix seconds if the backend schema expects seconds

Many auth and billing APIs document expiry values in seconds.

JavaScript Date value

Copy Unix milliseconds for Date constructors and browser logs

A 13-digit value is commonly milliseconds, while a 10-digit value is commonly seconds.

Scheduled release time

Convert the intended local date and verify the timezone separately

Useful before creating cron jobs, queue messages, or database seed rows.

Timezone and precision notes

  • Unix timestamps represent an instant in time; the displayed calendar date depends on the timezone used to read it.
  • Check whether a field expects seconds or milliseconds before pasting a timestamp into code or SQL.
  • For logs and incident reviews, keep the original timezone context beside the timestamp to avoid off-by-one-hour mistakes around DST.

Helpful when systems need raw timestamp values

Generate seconds and milliseconds together

See both common Unix formats from the same date input instead of converting once and guessing the other unit.

Safer for test data and payloads

Change the date and confirm the exact timestamp before pasting it into an API request, SQL row, or script.

Built for developer workflows

Use it when timestamps appear in auth expiry, scheduled jobs, queue messages, log filters, or analytics events.

Easy to check while debugging

Generate a timestamp from phone or desktop when you need a quick value during a review or incident.

Editorial and accuracy note

Date to Unix Timestamp Converter combines a working converter with practical guidance on the same page. The page is designed to show the formula, examples, rounding notes, and related tools so visitors can judge whether the result fits a task such as shipping, recipes, logs, design, travel, or automotive planning.

  • Results are calculated in the browser with standard conversion factors for common units.
  • For official forms, engineering tolerances, medical decisions, or compliance work, verify the original measurement and the relevant source rule.
  • The surrounding notes focus on real use cases instead of repeating generic placeholder copy.

More time tools

Unix Timestamp to Date ConverterTime Zone ConverterDate Difference Calculator

Date to Unix timestamp FAQ

Does this converter show seconds and milliseconds?
Yes. It returns Unix seconds and Unix milliseconds side by side so you can copy the unit your system expects.
Should I use Unix seconds or milliseconds?
Use the unit your field, API, or library expects. Many backend APIs store seconds, while JavaScript Date values and some analytics tools use milliseconds.
Can I generate Unix timestamps on mobile?
Yes. The converter works on phones, tablets, and desktop screens.

Need to read the timestamp back later?

Use the Unix timestamp to date converter or time zone tools when you need to inspect, compare, or explain stored time values.

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